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1da177e4 LT |
1 | /* |
2 | * Authors: | |
3 | * Copyright 2001, 2002 by Robert Olsson <robert.olsson@its.uu.se> | |
4 | * Uppsala University and | |
5 | * Swedish University of Agricultural Sciences | |
6 | * | |
7 | * Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> | |
8 | * Ben Greear <greearb@candelatech.com> | |
96de0e25 | 9 | * Jens Låås <jens.laas@data.slu.se> |
1da177e4 LT |
10 | * |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License | |
13 | * as published by the Free Software Foundation; either version | |
14 | * 2 of the License, or (at your option) any later version. | |
15 | * | |
16 | * | |
17 | * A tool for loading the network with preconfigurated packets. | |
4ec93edb | 18 | * The tool is implemented as a linux module. Parameters are output |
1da177e4 LT |
19 | * device, delay (to hard_xmit), number of packets, and whether |
20 | * to use multiple SKBs or just the same one. | |
21 | * pktgen uses the installed interface's output routine. | |
22 | * | |
23 | * Additional hacking by: | |
24 | * | |
25 | * Jens.Laas@data.slu.se | |
26 | * Improved by ANK. 010120. | |
27 | * Improved by ANK even more. 010212. | |
28 | * MAC address typo fixed. 010417 --ro | |
29 | * Integrated. 020301 --DaveM | |
30 | * Added multiskb option 020301 --DaveM | |
31 | * Scaling of results. 020417--sigurdur@linpro.no | |
32 | * Significant re-work of the module: | |
33 | * * Convert to threaded model to more efficiently be able to transmit | |
34 | * and receive on multiple interfaces at once. | |
35 | * * Converted many counters to __u64 to allow longer runs. | |
36 | * * Allow configuration of ranges, like min/max IP address, MACs, | |
37 | * and UDP-ports, for both source and destination, and can | |
38 | * set to use a random distribution or sequentially walk the range. | |
39 | * * Can now change most values after starting. | |
40 | * * Place 12-byte packet in UDP payload with magic number, | |
41 | * sequence number, and timestamp. | |
42 | * * Add receiver code that detects dropped pkts, re-ordered pkts, and | |
43 | * latencies (with micro-second) precision. | |
44 | * * Add IOCTL interface to easily get counters & configuration. | |
45 | * --Ben Greear <greearb@candelatech.com> | |
46 | * | |
4ec93edb YH |
47 | * Renamed multiskb to clone_skb and cleaned up sending core for two distinct |
48 | * skb modes. A clone_skb=0 mode for Ben "ranges" work and a clone_skb != 0 | |
1da177e4 | 49 | * as a "fastpath" with a configurable number of clones after alloc's. |
4ec93edb YH |
50 | * clone_skb=0 means all packets are allocated this also means ranges time |
51 | * stamps etc can be used. clone_skb=100 means 1 malloc is followed by 100 | |
1da177e4 LT |
52 | * clones. |
53 | * | |
4ec93edb | 54 | * Also moved to /proc/net/pktgen/ |
1da177e4 LT |
55 | * --ro |
56 | * | |
57 | * Sept 10: Fixed threading/locking. Lots of bone-headed and more clever | |
58 | * mistakes. Also merged in DaveM's patch in the -pre6 patch. | |
59 | * --Ben Greear <greearb@candelatech.com> | |
60 | * | |
61 | * Integrated to 2.5.x 021029 --Lucio Maciel (luciomaciel@zipmail.com.br) | |
62 | * | |
4ec93edb | 63 | * |
1da177e4 LT |
64 | * 021124 Finished major redesign and rewrite for new functionality. |
65 | * See Documentation/networking/pktgen.txt for how to use this. | |
66 | * | |
67 | * The new operation: | |
4ec93edb YH |
68 | * For each CPU one thread/process is created at start. This process checks |
69 | * for running devices in the if_list and sends packets until count is 0 it | |
70 | * also the thread checks the thread->control which is used for inter-process | |
71 | * communication. controlling process "posts" operations to the threads this | |
1da177e4 LT |
72 | * way. The if_lock should be possible to remove when add/rem_device is merged |
73 | * into this too. | |
74 | * | |
4ec93edb YH |
75 | * By design there should only be *one* "controlling" process. In practice |
76 | * multiple write accesses gives unpredictable result. Understood by "write" | |
1da177e4 | 77 | * to /proc gives result code thats should be read be the "writer". |
b4099fab | 78 | * For practical use this should be no problem. |
1da177e4 | 79 | * |
4ec93edb YH |
80 | * Note when adding devices to a specific CPU there good idea to also assign |
81 | * /proc/irq/XX/smp_affinity so TX-interrupts gets bound to the same CPU. | |
1da177e4 LT |
82 | * --ro |
83 | * | |
4ec93edb | 84 | * Fix refcount off by one if first packet fails, potential null deref, |
1da177e4 LT |
85 | * memleak 030710- KJP |
86 | * | |
87 | * First "ranges" functionality for ipv6 030726 --ro | |
88 | * | |
89 | * Included flow support. 030802 ANK. | |
90 | * | |
91 | * Fixed unaligned access on IA-64 Grant Grundler <grundler@parisc-linux.org> | |
4ec93edb | 92 | * |
1da177e4 LT |
93 | * Remove if fix from added Harald Welte <laforge@netfilter.org> 040419 |
94 | * ia64 compilation fix from Aron Griffis <aron@hp.com> 040604 | |
95 | * | |
4ec93edb | 96 | * New xmit() return, do_div and misc clean up by Stephen Hemminger |
1da177e4 LT |
97 | * <shemminger@osdl.org> 040923 |
98 | * | |
4ec93edb | 99 | * Randy Dunlap fixed u64 printk compiler waring |
1da177e4 LT |
100 | * |
101 | * Remove FCS from BW calculation. Lennert Buytenhek <buytenh@wantstofly.org> | |
102 | * New time handling. Lennert Buytenhek <buytenh@wantstofly.org> 041213 | |
103 | * | |
4ec93edb | 104 | * Corrections from Nikolai Malykh (nmalykh@bilim.com) |
1da177e4 LT |
105 | * Removed unused flags F_SET_SRCMAC & F_SET_SRCIP 041230 |
106 | * | |
4ec93edb | 107 | * interruptible_sleep_on_timeout() replaced Nishanth Aravamudan <nacc@us.ibm.com> |
1da177e4 | 108 | * 050103 |
ca6549af SW |
109 | * |
110 | * MPLS support by Steven Whitehouse <steve@chygwyn.com> | |
111 | * | |
34954ddc FF |
112 | * 802.1Q/Q-in-Q support by Francesco Fondelli (FF) <francesco.fondelli@gmail.com> |
113 | * | |
ce5d0b47 AR |
114 | * Fixed src_mac command to set source mac of packet to value specified in |
115 | * command by Adit Ranadive <adit.262@gmail.com> | |
116 | * | |
1da177e4 LT |
117 | */ |
118 | #include <linux/sys.h> | |
119 | #include <linux/types.h> | |
120 | #include <linux/module.h> | |
121 | #include <linux/moduleparam.h> | |
122 | #include <linux/kernel.h> | |
222fa076 | 123 | #include <linux/mutex.h> |
1da177e4 LT |
124 | #include <linux/sched.h> |
125 | #include <linux/slab.h> | |
126 | #include <linux/vmalloc.h> | |
1da177e4 LT |
127 | #include <linux/unistd.h> |
128 | #include <linux/string.h> | |
129 | #include <linux/ptrace.h> | |
130 | #include <linux/errno.h> | |
131 | #include <linux/ioport.h> | |
132 | #include <linux/interrupt.h> | |
4fc268d2 | 133 | #include <linux/capability.h> |
09fe3ef4 | 134 | #include <linux/freezer.h> |
1da177e4 LT |
135 | #include <linux/delay.h> |
136 | #include <linux/timer.h> | |
cdcdbe0b | 137 | #include <linux/list.h> |
1da177e4 LT |
138 | #include <linux/init.h> |
139 | #include <linux/skbuff.h> | |
140 | #include <linux/netdevice.h> | |
141 | #include <linux/inet.h> | |
142 | #include <linux/inetdevice.h> | |
143 | #include <linux/rtnetlink.h> | |
144 | #include <linux/if_arp.h> | |
34954ddc | 145 | #include <linux/if_vlan.h> |
1da177e4 LT |
146 | #include <linux/in.h> |
147 | #include <linux/ip.h> | |
148 | #include <linux/ipv6.h> | |
149 | #include <linux/udp.h> | |
150 | #include <linux/proc_fs.h> | |
d50a6b56 | 151 | #include <linux/seq_file.h> |
1da177e4 | 152 | #include <linux/wait.h> |
f404e9a6 | 153 | #include <linux/etherdevice.h> |
ee74baa7 | 154 | #include <linux/kthread.h> |
457c4cbc | 155 | #include <net/net_namespace.h> |
1da177e4 LT |
156 | #include <net/checksum.h> |
157 | #include <net/ipv6.h> | |
158 | #include <net/addrconf.h> | |
a553e4a6 JHS |
159 | #ifdef CONFIG_XFRM |
160 | #include <net/xfrm.h> | |
161 | #endif | |
1da177e4 LT |
162 | #include <asm/byteorder.h> |
163 | #include <linux/rcupdate.h> | |
1977f032 | 164 | #include <linux/bitops.h> |
1da177e4 LT |
165 | #include <asm/io.h> |
166 | #include <asm/dma.h> | |
167 | #include <asm/uaccess.h> | |
222f1806 | 168 | #include <asm/div64.h> /* do_div */ |
1da177e4 LT |
169 | #include <asm/timex.h> |
170 | ||
b163911f | 171 | #define VERSION "pktgen v2.69: Packet Generator for packet performance testing.\n" |
1da177e4 | 172 | |
1da177e4 LT |
173 | /* The buckets are exponential in 'width' */ |
174 | #define LAT_BUCKETS_MAX 32 | |
175 | #define IP_NAME_SZ 32 | |
ca6549af | 176 | #define MAX_MPLS_LABELS 16 /* This is the max label stack depth */ |
d5f1ce9a | 177 | #define MPLS_STACK_BOTTOM htonl(0x00000100) |
1da177e4 LT |
178 | |
179 | /* Device flag bits */ | |
222f1806 LC |
180 | #define F_IPSRC_RND (1<<0) /* IP-Src Random */ |
181 | #define F_IPDST_RND (1<<1) /* IP-Dst Random */ | |
182 | #define F_UDPSRC_RND (1<<2) /* UDP-Src Random */ | |
183 | #define F_UDPDST_RND (1<<3) /* UDP-Dst Random */ | |
184 | #define F_MACSRC_RND (1<<4) /* MAC-Src Random */ | |
185 | #define F_MACDST_RND (1<<5) /* MAC-Dst Random */ | |
186 | #define F_TXSIZE_RND (1<<6) /* Transmit size is random */ | |
187 | #define F_IPV6 (1<<7) /* Interface in IPV6 Mode */ | |
ca6549af | 188 | #define F_MPLS_RND (1<<8) /* Random MPLS labels */ |
34954ddc FF |
189 | #define F_VID_RND (1<<9) /* Random VLAN ID */ |
190 | #define F_SVID_RND (1<<10) /* Random SVLAN ID */ | |
007a531b | 191 | #define F_FLOW_SEQ (1<<11) /* Sequential flows */ |
a553e4a6 | 192 | #define F_IPSEC_ON (1<<12) /* ipsec on for flows */ |
45b270f8 | 193 | #define F_QUEUE_MAP_RND (1<<13) /* queue map Random */ |
1da177e4 LT |
194 | |
195 | /* Thread control flag bits */ | |
222f1806 LC |
196 | #define T_TERMINATE (1<<0) |
197 | #define T_STOP (1<<1) /* Stop run */ | |
198 | #define T_RUN (1<<2) /* Start run */ | |
199 | #define T_REMDEVALL (1<<3) /* Remove all devs */ | |
200 | #define T_REMDEV (1<<4) /* Remove one dev */ | |
1da177e4 | 201 | |
1da177e4 LT |
202 | /* If lock -- can be removed after some work */ |
203 | #define if_lock(t) spin_lock(&(t->if_lock)); | |
204 | #define if_unlock(t) spin_unlock(&(t->if_lock)); | |
205 | ||
206 | /* Used to help with determining the pkts on receive */ | |
207 | #define PKTGEN_MAGIC 0xbe9be955 | |
d50a6b56 SH |
208 | #define PG_PROC_DIR "pktgen" |
209 | #define PGCTRL "pgctrl" | |
210 | static struct proc_dir_entry *pg_proc_dir = NULL; | |
1da177e4 LT |
211 | |
212 | #define MAX_CFLOWS 65536 | |
213 | ||
34954ddc FF |
214 | #define VLAN_TAG_SIZE(x) ((x)->vlan_id == 0xffff ? 0 : 4) |
215 | #define SVLAN_TAG_SIZE(x) ((x)->svlan_id == 0xffff ? 0 : 4) | |
216 | ||
222f1806 | 217 | struct flow_state { |
252e3346 | 218 | __be32 cur_daddr; |
222f1806 | 219 | int count; |
a553e4a6 JHS |
220 | #ifdef CONFIG_XFRM |
221 | struct xfrm_state *x; | |
222 | #endif | |
007a531b | 223 | __u32 flags; |
1da177e4 LT |
224 | }; |
225 | ||
007a531b JHS |
226 | /* flow flag bits */ |
227 | #define F_INIT (1<<0) /* flow has been initialized */ | |
228 | ||
1da177e4 | 229 | struct pktgen_dev { |
1da177e4 LT |
230 | /* |
231 | * Try to keep frequent/infrequent used vars. separated. | |
232 | */ | |
39df232f SH |
233 | struct proc_dir_entry *entry; /* proc file */ |
234 | struct pktgen_thread *pg_thread;/* the owner */ | |
c26a8016 | 235 | struct list_head list; /* Used for chaining in the thread's run-queue */ |
1da177e4 | 236 | |
222f1806 | 237 | int running; /* if this changes to false, the test will stop */ |
1da177e4 | 238 | |
222f1806 LC |
239 | /* If min != max, then we will either do a linear iteration, or |
240 | * we will do a random selection from within the range. | |
241 | */ | |
242 | __u32 flags; | |
95ed63f7 AK |
243 | int removal_mark; /* non-zero => the device is marked for |
244 | * removal by worker thread */ | |
1da177e4 | 245 | |
222f1806 LC |
246 | int min_pkt_size; /* = ETH_ZLEN; */ |
247 | int max_pkt_size; /* = ETH_ZLEN; */ | |
16dab72f | 248 | int pkt_overhead; /* overhead for MPLS, VLANs, IPSEC etc */ |
222f1806 LC |
249 | int nfrags; |
250 | __u32 delay_us; /* Default delay */ | |
251 | __u32 delay_ns; | |
252 | __u64 count; /* Default No packets to send */ | |
253 | __u64 sofar; /* How many pkts we've sent so far */ | |
254 | __u64 tx_bytes; /* How many bytes we've transmitted */ | |
255 | __u64 errors; /* Errors when trying to transmit, pkts will be re-sent */ | |
256 | ||
257 | /* runtime counters relating to clone_skb */ | |
258 | __u64 next_tx_us; /* timestamp of when to tx next */ | |
259 | __u32 next_tx_ns; | |
260 | ||
261 | __u64 allocated_skbs; | |
262 | __u32 clone_count; | |
263 | int last_ok; /* Was last skb sent? | |
264 | * Or a failed transmit of some sort? This will keep | |
265 | * sequence numbers in order, for example. | |
266 | */ | |
267 | __u64 started_at; /* micro-seconds */ | |
268 | __u64 stopped_at; /* micro-seconds */ | |
269 | __u64 idle_acc; /* micro-seconds */ | |
270 | __u32 seq_num; | |
271 | ||
272 | int clone_skb; /* Use multiple SKBs during packet gen. If this number | |
273 | * is greater than 1, then that many copies of the same | |
274 | * packet will be sent before a new packet is allocated. | |
275 | * For instance, if you want to send 1024 identical packets | |
276 | * before creating a new packet, set clone_skb to 1024. | |
277 | */ | |
278 | ||
279 | char dst_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
280 | char dst_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
281 | char src_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
282 | char src_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
283 | ||
284 | struct in6_addr in6_saddr; | |
285 | struct in6_addr in6_daddr; | |
286 | struct in6_addr cur_in6_daddr; | |
287 | struct in6_addr cur_in6_saddr; | |
1da177e4 | 288 | /* For ranges */ |
222f1806 LC |
289 | struct in6_addr min_in6_daddr; |
290 | struct in6_addr max_in6_daddr; | |
291 | struct in6_addr min_in6_saddr; | |
292 | struct in6_addr max_in6_saddr; | |
293 | ||
294 | /* If we're doing ranges, random or incremental, then this | |
295 | * defines the min/max for those ranges. | |
296 | */ | |
252e3346 AV |
297 | __be32 saddr_min; /* inclusive, source IP address */ |
298 | __be32 saddr_max; /* exclusive, source IP address */ | |
299 | __be32 daddr_min; /* inclusive, dest IP address */ | |
300 | __be32 daddr_max; /* exclusive, dest IP address */ | |
222f1806 LC |
301 | |
302 | __u16 udp_src_min; /* inclusive, source UDP port */ | |
303 | __u16 udp_src_max; /* exclusive, source UDP port */ | |
304 | __u16 udp_dst_min; /* inclusive, dest UDP port */ | |
305 | __u16 udp_dst_max; /* exclusive, dest UDP port */ | |
306 | ||
1ca7768c FF |
307 | /* DSCP + ECN */ |
308 | __u8 tos; /* six most significant bits of (former) IPv4 TOS are for dscp codepoint */ | |
309 | __u8 traffic_class; /* ditto for the (former) Traffic Class in IPv6 (see RFC 3260, sec. 4) */ | |
310 | ||
ca6549af SW |
311 | /* MPLS */ |
312 | unsigned nr_labels; /* Depth of stack, 0 = no MPLS */ | |
313 | __be32 labels[MAX_MPLS_LABELS]; | |
314 | ||
34954ddc FF |
315 | /* VLAN/SVLAN (802.1Q/Q-in-Q) */ |
316 | __u8 vlan_p; | |
317 | __u8 vlan_cfi; | |
318 | __u16 vlan_id; /* 0xffff means no vlan tag */ | |
319 | ||
320 | __u8 svlan_p; | |
321 | __u8 svlan_cfi; | |
322 | __u16 svlan_id; /* 0xffff means no svlan tag */ | |
323 | ||
222f1806 LC |
324 | __u32 src_mac_count; /* How many MACs to iterate through */ |
325 | __u32 dst_mac_count; /* How many MACs to iterate through */ | |
326 | ||
327 | unsigned char dst_mac[ETH_ALEN]; | |
328 | unsigned char src_mac[ETH_ALEN]; | |
329 | ||
330 | __u32 cur_dst_mac_offset; | |
331 | __u32 cur_src_mac_offset; | |
252e3346 AV |
332 | __be32 cur_saddr; |
333 | __be32 cur_daddr; | |
222f1806 LC |
334 | __u16 cur_udp_dst; |
335 | __u16 cur_udp_src; | |
45b270f8 | 336 | __u16 cur_queue_map; |
222f1806 LC |
337 | __u32 cur_pkt_size; |
338 | ||
339 | __u8 hh[14]; | |
340 | /* = { | |
341 | 0x00, 0x80, 0xC8, 0x79, 0xB3, 0xCB, | |
342 | ||
343 | We fill in SRC address later | |
344 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
345 | 0x08, 0x00 | |
346 | }; | |
347 | */ | |
348 | __u16 pad; /* pad out the hh struct to an even 16 bytes */ | |
349 | ||
350 | struct sk_buff *skb; /* skb we are to transmit next, mainly used for when we | |
351 | * are transmitting the same one multiple times | |
352 | */ | |
353 | struct net_device *odev; /* The out-going device. Note that the device should | |
354 | * have it's pg_info pointer pointing back to this | |
355 | * device. This will be set when the user specifies | |
356 | * the out-going device name (not when the inject is | |
357 | * started as it used to do.) | |
358 | */ | |
1da177e4 | 359 | struct flow_state *flows; |
222f1806 LC |
360 | unsigned cflows; /* Concurrent flows (config) */ |
361 | unsigned lflow; /* Flow length (config) */ | |
362 | unsigned nflows; /* accumulated flows (stats) */ | |
007a531b | 363 | unsigned curfl; /* current sequenced flow (state)*/ |
45b270f8 RO |
364 | |
365 | u16 queue_map_min; | |
366 | u16 queue_map_max; | |
367 | ||
a553e4a6 JHS |
368 | #ifdef CONFIG_XFRM |
369 | __u8 ipsmode; /* IPSEC mode (config) */ | |
370 | __u8 ipsproto; /* IPSEC type (config) */ | |
371 | #endif | |
39df232f | 372 | char result[512]; |
1da177e4 LT |
373 | }; |
374 | ||
375 | struct pktgen_hdr { | |
252e3346 AV |
376 | __be32 pgh_magic; |
377 | __be32 seq_num; | |
378 | __be32 tv_sec; | |
379 | __be32 tv_usec; | |
1da177e4 LT |
380 | }; |
381 | ||
382 | struct pktgen_thread { | |
222f1806 | 383 | spinlock_t if_lock; |
c26a8016 | 384 | struct list_head if_list; /* All device here */ |
cdcdbe0b | 385 | struct list_head th_list; |
ee74baa7 | 386 | struct task_struct *tsk; |
222f1806 | 387 | char result[512]; |
222f1806 LC |
388 | |
389 | /* Field for thread to receive "posted" events terminate, stop ifs etc. */ | |
390 | ||
391 | u32 control; | |
1da177e4 LT |
392 | int cpu; |
393 | ||
222f1806 | 394 | wait_queue_head_t queue; |
1da177e4 LT |
395 | }; |
396 | ||
397 | #define REMOVE 1 | |
398 | #define FIND 0 | |
399 | ||
1da177e4 | 400 | /** Convert to micro-seconds */ |
222f1806 | 401 | static inline __u64 tv_to_us(const struct timeval *tv) |
1da177e4 | 402 | { |
222f1806 LC |
403 | __u64 us = tv->tv_usec; |
404 | us += (__u64) tv->tv_sec * (__u64) 1000000; | |
405 | return us; | |
1da177e4 LT |
406 | } |
407 | ||
6db105db | 408 | static __u64 getCurUs(void) |
1da177e4 | 409 | { |
222f1806 LC |
410 | struct timeval tv; |
411 | do_gettimeofday(&tv); | |
412 | return tv_to_us(&tv); | |
1da177e4 LT |
413 | } |
414 | ||
1da177e4 LT |
415 | /* old include end */ |
416 | ||
417 | static char version[] __initdata = VERSION; | |
418 | ||
222f1806 LC |
419 | static int pktgen_remove_device(struct pktgen_thread *t, struct pktgen_dev *i); |
420 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname); | |
421 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, | |
422 | const char *ifname); | |
1da177e4 LT |
423 | static int pktgen_device_event(struct notifier_block *, unsigned long, void *); |
424 | static void pktgen_run_all_threads(void); | |
425 | static void pktgen_stop_all_threads_ifs(void); | |
426 | static int pktgen_stop_device(struct pktgen_dev *pkt_dev); | |
222f1806 | 427 | static void pktgen_stop(struct pktgen_thread *t); |
1da177e4 | 428 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev); |
39df232f | 429 | |
222f1806 LC |
430 | static unsigned int scan_ip6(const char *s, char ip[16]); |
431 | static unsigned int fmt_ip6(char *s, const char ip[16]); | |
1da177e4 LT |
432 | |
433 | /* Module parameters, defaults. */ | |
222f1806 | 434 | static int pg_count_d = 1000; /* 1000 pkts by default */ |
f34fbb97 JK |
435 | static int pg_delay_d; |
436 | static int pg_clone_skb_d; | |
437 | static int debug; | |
1da177e4 | 438 | |
222fa076 | 439 | static DEFINE_MUTEX(pktgen_thread_lock); |
cdcdbe0b | 440 | static LIST_HEAD(pktgen_threads); |
1da177e4 | 441 | |
1da177e4 LT |
442 | static struct notifier_block pktgen_notifier_block = { |
443 | .notifier_call = pktgen_device_event, | |
444 | }; | |
445 | ||
1da177e4 | 446 | /* |
4ec93edb | 447 | * /proc handling functions |
1da177e4 LT |
448 | * |
449 | */ | |
450 | ||
d50a6b56 | 451 | static int pgctrl_show(struct seq_file *seq, void *v) |
222f1806 | 452 | { |
d50a6b56 SH |
453 | seq_puts(seq, VERSION); |
454 | return 0; | |
1da177e4 LT |
455 | } |
456 | ||
222f1806 LC |
457 | static ssize_t pgctrl_write(struct file *file, const char __user * buf, |
458 | size_t count, loff_t * ppos) | |
1da177e4 | 459 | { |
1da177e4 | 460 | int err = 0; |
d50a6b56 | 461 | char data[128]; |
1da177e4 | 462 | |
222f1806 LC |
463 | if (!capable(CAP_NET_ADMIN)) { |
464 | err = -EPERM; | |
1da177e4 | 465 | goto out; |
222f1806 | 466 | } |
1da177e4 | 467 | |
d50a6b56 SH |
468 | if (count > sizeof(data)) |
469 | count = sizeof(data); | |
1da177e4 | 470 | |
1da177e4 | 471 | if (copy_from_user(data, buf, count)) { |
b4099fab | 472 | err = -EFAULT; |
d50a6b56 | 473 | goto out; |
222f1806 LC |
474 | } |
475 | data[count - 1] = 0; /* Make string */ | |
1da177e4 | 476 | |
222f1806 | 477 | if (!strcmp(data, "stop")) |
1da177e4 LT |
478 | pktgen_stop_all_threads_ifs(); |
479 | ||
222f1806 | 480 | else if (!strcmp(data, "start")) |
1da177e4 LT |
481 | pktgen_run_all_threads(); |
482 | ||
222f1806 | 483 | else |
25a8b254 | 484 | printk(KERN_WARNING "pktgen: Unknown command: %s\n", data); |
1da177e4 LT |
485 | |
486 | err = count; | |
487 | ||
222f1806 LC |
488 | out: |
489 | return err; | |
1da177e4 LT |
490 | } |
491 | ||
d50a6b56 SH |
492 | static int pgctrl_open(struct inode *inode, struct file *file) |
493 | { | |
494 | return single_open(file, pgctrl_show, PDE(inode)->data); | |
495 | } | |
496 | ||
9a32144e | 497 | static const struct file_operations pktgen_fops = { |
222f1806 LC |
498 | .owner = THIS_MODULE, |
499 | .open = pgctrl_open, | |
500 | .read = seq_read, | |
501 | .llseek = seq_lseek, | |
502 | .write = pgctrl_write, | |
503 | .release = single_release, | |
d50a6b56 SH |
504 | }; |
505 | ||
506 | static int pktgen_if_show(struct seq_file *seq, void *v) | |
1da177e4 | 507 | { |
222f1806 LC |
508 | struct pktgen_dev *pkt_dev = seq->private; |
509 | __u64 sa; | |
510 | __u64 stopped; | |
511 | __u64 now = getCurUs(); | |
0795af57 | 512 | DECLARE_MAC_BUF(mac); |
222f1806 LC |
513 | |
514 | seq_printf(seq, | |
515 | "Params: count %llu min_pkt_size: %u max_pkt_size: %u\n", | |
516 | (unsigned long long)pkt_dev->count, pkt_dev->min_pkt_size, | |
517 | pkt_dev->max_pkt_size); | |
518 | ||
519 | seq_printf(seq, | |
520 | " frags: %d delay: %u clone_skb: %d ifname: %s\n", | |
521 | pkt_dev->nfrags, | |
522 | 1000 * pkt_dev->delay_us + pkt_dev->delay_ns, | |
39df232f | 523 | pkt_dev->clone_skb, pkt_dev->odev->name); |
222f1806 LC |
524 | |
525 | seq_printf(seq, " flows: %u flowlen: %u\n", pkt_dev->cflows, | |
526 | pkt_dev->lflow); | |
527 | ||
45b270f8 RO |
528 | seq_printf(seq, |
529 | " queue_map_min: %u queue_map_max: %u\n", | |
530 | pkt_dev->queue_map_min, | |
531 | pkt_dev->queue_map_max); | |
532 | ||
222f1806 LC |
533 | if (pkt_dev->flags & F_IPV6) { |
534 | char b1[128], b2[128], b3[128]; | |
535 | fmt_ip6(b1, pkt_dev->in6_saddr.s6_addr); | |
536 | fmt_ip6(b2, pkt_dev->min_in6_saddr.s6_addr); | |
537 | fmt_ip6(b3, pkt_dev->max_in6_saddr.s6_addr); | |
538 | seq_printf(seq, | |
539 | " saddr: %s min_saddr: %s max_saddr: %s\n", b1, | |
540 | b2, b3); | |
541 | ||
542 | fmt_ip6(b1, pkt_dev->in6_daddr.s6_addr); | |
543 | fmt_ip6(b2, pkt_dev->min_in6_daddr.s6_addr); | |
544 | fmt_ip6(b3, pkt_dev->max_in6_daddr.s6_addr); | |
545 | seq_printf(seq, | |
546 | " daddr: %s min_daddr: %s max_daddr: %s\n", b1, | |
547 | b2, b3); | |
548 | ||
549 | } else | |
550 | seq_printf(seq, | |
551 | " dst_min: %s dst_max: %s\n src_min: %s src_max: %s\n", | |
552 | pkt_dev->dst_min, pkt_dev->dst_max, pkt_dev->src_min, | |
553 | pkt_dev->src_max); | |
1da177e4 | 554 | |
222f1806 | 555 | seq_puts(seq, " src_mac: "); |
1da177e4 | 556 | |
0795af57 JP |
557 | seq_printf(seq, "%s ", |
558 | print_mac(mac, is_zero_ether_addr(pkt_dev->src_mac) ? | |
559 | pkt_dev->odev->dev_addr : pkt_dev->src_mac)); | |
222f1806 LC |
560 | |
561 | seq_printf(seq, "dst_mac: "); | |
0795af57 | 562 | seq_printf(seq, "%s\n", print_mac(mac, pkt_dev->dst_mac)); |
222f1806 LC |
563 | |
564 | seq_printf(seq, | |
565 | " udp_src_min: %d udp_src_max: %d udp_dst_min: %d udp_dst_max: %d\n", | |
566 | pkt_dev->udp_src_min, pkt_dev->udp_src_max, | |
567 | pkt_dev->udp_dst_min, pkt_dev->udp_dst_max); | |
568 | ||
569 | seq_printf(seq, | |
ca6549af | 570 | " src_mac_count: %d dst_mac_count: %d\n", |
222f1806 | 571 | pkt_dev->src_mac_count, pkt_dev->dst_mac_count); |
1da177e4 | 572 | |
ca6549af SW |
573 | if (pkt_dev->nr_labels) { |
574 | unsigned i; | |
575 | seq_printf(seq, " mpls: "); | |
e71a4783 | 576 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
577 | seq_printf(seq, "%08x%s", ntohl(pkt_dev->labels[i]), |
578 | i == pkt_dev->nr_labels-1 ? "\n" : ", "); | |
579 | } | |
580 | ||
34954ddc FF |
581 | if (pkt_dev->vlan_id != 0xffff) { |
582 | seq_printf(seq, " vlan_id: %u vlan_p: %u vlan_cfi: %u\n", | |
583 | pkt_dev->vlan_id, pkt_dev->vlan_p, pkt_dev->vlan_cfi); | |
584 | } | |
585 | ||
586 | if (pkt_dev->svlan_id != 0xffff) { | |
587 | seq_printf(seq, " svlan_id: %u vlan_p: %u vlan_cfi: %u\n", | |
588 | pkt_dev->svlan_id, pkt_dev->svlan_p, pkt_dev->svlan_cfi); | |
589 | } | |
590 | ||
1ca7768c FF |
591 | if (pkt_dev->tos) { |
592 | seq_printf(seq, " tos: 0x%02x\n", pkt_dev->tos); | |
593 | } | |
594 | ||
595 | if (pkt_dev->traffic_class) { | |
596 | seq_printf(seq, " traffic_class: 0x%02x\n", pkt_dev->traffic_class); | |
597 | } | |
598 | ||
ca6549af SW |
599 | seq_printf(seq, " Flags: "); |
600 | ||
222f1806 LC |
601 | if (pkt_dev->flags & F_IPV6) |
602 | seq_printf(seq, "IPV6 "); | |
1da177e4 | 603 | |
222f1806 LC |
604 | if (pkt_dev->flags & F_IPSRC_RND) |
605 | seq_printf(seq, "IPSRC_RND "); | |
1da177e4 | 606 | |
222f1806 LC |
607 | if (pkt_dev->flags & F_IPDST_RND) |
608 | seq_printf(seq, "IPDST_RND "); | |
1da177e4 | 609 | |
222f1806 LC |
610 | if (pkt_dev->flags & F_TXSIZE_RND) |
611 | seq_printf(seq, "TXSIZE_RND "); | |
1da177e4 | 612 | |
222f1806 LC |
613 | if (pkt_dev->flags & F_UDPSRC_RND) |
614 | seq_printf(seq, "UDPSRC_RND "); | |
1da177e4 | 615 | |
222f1806 LC |
616 | if (pkt_dev->flags & F_UDPDST_RND) |
617 | seq_printf(seq, "UDPDST_RND "); | |
1da177e4 | 618 | |
ca6549af SW |
619 | if (pkt_dev->flags & F_MPLS_RND) |
620 | seq_printf(seq, "MPLS_RND "); | |
621 | ||
45b270f8 RO |
622 | if (pkt_dev->flags & F_QUEUE_MAP_RND) |
623 | seq_printf(seq, "QUEUE_MAP_RND "); | |
624 | ||
007a531b JHS |
625 | if (pkt_dev->cflows) { |
626 | if (pkt_dev->flags & F_FLOW_SEQ) | |
627 | seq_printf(seq, "FLOW_SEQ "); /*in sequence flows*/ | |
628 | else | |
629 | seq_printf(seq, "FLOW_RND "); | |
630 | } | |
631 | ||
a553e4a6 JHS |
632 | #ifdef CONFIG_XFRM |
633 | if (pkt_dev->flags & F_IPSEC_ON) | |
634 | seq_printf(seq, "IPSEC "); | |
635 | #endif | |
636 | ||
222f1806 LC |
637 | if (pkt_dev->flags & F_MACSRC_RND) |
638 | seq_printf(seq, "MACSRC_RND "); | |
1da177e4 | 639 | |
222f1806 LC |
640 | if (pkt_dev->flags & F_MACDST_RND) |
641 | seq_printf(seq, "MACDST_RND "); | |
1da177e4 | 642 | |
34954ddc FF |
643 | if (pkt_dev->flags & F_VID_RND) |
644 | seq_printf(seq, "VID_RND "); | |
645 | ||
646 | if (pkt_dev->flags & F_SVID_RND) | |
647 | seq_printf(seq, "SVID_RND "); | |
648 | ||
222f1806 LC |
649 | seq_puts(seq, "\n"); |
650 | ||
651 | sa = pkt_dev->started_at; | |
652 | stopped = pkt_dev->stopped_at; | |
653 | if (pkt_dev->running) | |
654 | stopped = now; /* not really stopped, more like last-running-at */ | |
1da177e4 | 655 | |
222f1806 LC |
656 | seq_printf(seq, |
657 | "Current:\n pkts-sofar: %llu errors: %llu\n started: %lluus stopped: %lluus idle: %lluus\n", | |
658 | (unsigned long long)pkt_dev->sofar, | |
659 | (unsigned long long)pkt_dev->errors, (unsigned long long)sa, | |
660 | (unsigned long long)stopped, | |
661 | (unsigned long long)pkt_dev->idle_acc); | |
1da177e4 | 662 | |
222f1806 LC |
663 | seq_printf(seq, |
664 | " seq_num: %d cur_dst_mac_offset: %d cur_src_mac_offset: %d\n", | |
d50a6b56 SH |
665 | pkt_dev->seq_num, pkt_dev->cur_dst_mac_offset, |
666 | pkt_dev->cur_src_mac_offset); | |
1da177e4 | 667 | |
222f1806 | 668 | if (pkt_dev->flags & F_IPV6) { |
1da177e4 | 669 | char b1[128], b2[128]; |
222f1806 LC |
670 | fmt_ip6(b1, pkt_dev->cur_in6_daddr.s6_addr); |
671 | fmt_ip6(b2, pkt_dev->cur_in6_saddr.s6_addr); | |
672 | seq_printf(seq, " cur_saddr: %s cur_daddr: %s\n", b2, b1); | |
673 | } else | |
674 | seq_printf(seq, " cur_saddr: 0x%x cur_daddr: 0x%x\n", | |
d50a6b56 | 675 | pkt_dev->cur_saddr, pkt_dev->cur_daddr); |
1da177e4 | 676 | |
222f1806 | 677 | seq_printf(seq, " cur_udp_dst: %d cur_udp_src: %d\n", |
d50a6b56 | 678 | pkt_dev->cur_udp_dst, pkt_dev->cur_udp_src); |
1da177e4 | 679 | |
45b270f8 RO |
680 | seq_printf(seq, " cur_queue_map: %u\n", pkt_dev->cur_queue_map); |
681 | ||
222f1806 | 682 | seq_printf(seq, " flows: %u\n", pkt_dev->nflows); |
1da177e4 LT |
683 | |
684 | if (pkt_dev->result[0]) | |
222f1806 | 685 | seq_printf(seq, "Result: %s\n", pkt_dev->result); |
1da177e4 | 686 | else |
222f1806 | 687 | seq_printf(seq, "Result: Idle\n"); |
1da177e4 | 688 | |
d50a6b56 | 689 | return 0; |
1da177e4 LT |
690 | } |
691 | ||
ca6549af | 692 | |
1ca7768c | 693 | static int hex32_arg(const char __user *user_buffer, unsigned long maxlen, __u32 *num) |
ca6549af SW |
694 | { |
695 | int i = 0; | |
696 | *num = 0; | |
697 | ||
e71a4783 | 698 | for (; i < maxlen; i++) { |
ca6549af SW |
699 | char c; |
700 | *num <<= 4; | |
701 | if (get_user(c, &user_buffer[i])) | |
702 | return -EFAULT; | |
703 | if ((c >= '0') && (c <= '9')) | |
704 | *num |= c - '0'; | |
705 | else if ((c >= 'a') && (c <= 'f')) | |
706 | *num |= c - 'a' + 10; | |
707 | else if ((c >= 'A') && (c <= 'F')) | |
708 | *num |= c - 'A' + 10; | |
709 | else | |
710 | break; | |
711 | } | |
712 | return i; | |
713 | } | |
714 | ||
222f1806 LC |
715 | static int count_trail_chars(const char __user * user_buffer, |
716 | unsigned int maxlen) | |
1da177e4 LT |
717 | { |
718 | int i; | |
719 | ||
720 | for (i = 0; i < maxlen; i++) { | |
222f1806 LC |
721 | char c; |
722 | if (get_user(c, &user_buffer[i])) | |
723 | return -EFAULT; | |
724 | switch (c) { | |
1da177e4 LT |
725 | case '\"': |
726 | case '\n': | |
727 | case '\r': | |
728 | case '\t': | |
729 | case ' ': | |
730 | case '=': | |
731 | break; | |
732 | default: | |
733 | goto done; | |
3ff50b79 | 734 | } |
1da177e4 LT |
735 | } |
736 | done: | |
737 | return i; | |
738 | } | |
739 | ||
222f1806 LC |
740 | static unsigned long num_arg(const char __user * user_buffer, |
741 | unsigned long maxlen, unsigned long *num) | |
1da177e4 LT |
742 | { |
743 | int i = 0; | |
744 | *num = 0; | |
222f1806 LC |
745 | |
746 | for (; i < maxlen; i++) { | |
747 | char c; | |
748 | if (get_user(c, &user_buffer[i])) | |
749 | return -EFAULT; | |
750 | if ((c >= '0') && (c <= '9')) { | |
1da177e4 | 751 | *num *= 10; |
222f1806 | 752 | *num += c - '0'; |
1da177e4 LT |
753 | } else |
754 | break; | |
755 | } | |
756 | return i; | |
757 | } | |
758 | ||
222f1806 | 759 | static int strn_len(const char __user * user_buffer, unsigned int maxlen) |
1da177e4 LT |
760 | { |
761 | int i = 0; | |
762 | ||
222f1806 LC |
763 | for (; i < maxlen; i++) { |
764 | char c; | |
765 | if (get_user(c, &user_buffer[i])) | |
766 | return -EFAULT; | |
767 | switch (c) { | |
1da177e4 LT |
768 | case '\"': |
769 | case '\n': | |
770 | case '\r': | |
771 | case '\t': | |
772 | case ' ': | |
773 | goto done_str; | |
774 | break; | |
775 | default: | |
776 | break; | |
3ff50b79 | 777 | } |
1da177e4 LT |
778 | } |
779 | done_str: | |
1da177e4 LT |
780 | return i; |
781 | } | |
782 | ||
ca6549af SW |
783 | static ssize_t get_labels(const char __user *buffer, struct pktgen_dev *pkt_dev) |
784 | { | |
785 | unsigned n = 0; | |
786 | char c; | |
787 | ssize_t i = 0; | |
788 | int len; | |
789 | ||
790 | pkt_dev->nr_labels = 0; | |
791 | do { | |
792 | __u32 tmp; | |
1ca7768c | 793 | len = hex32_arg(&buffer[i], 8, &tmp); |
ca6549af SW |
794 | if (len <= 0) |
795 | return len; | |
796 | pkt_dev->labels[n] = htonl(tmp); | |
797 | if (pkt_dev->labels[n] & MPLS_STACK_BOTTOM) | |
798 | pkt_dev->flags |= F_MPLS_RND; | |
799 | i += len; | |
800 | if (get_user(c, &buffer[i])) | |
801 | return -EFAULT; | |
802 | i++; | |
803 | n++; | |
804 | if (n >= MAX_MPLS_LABELS) | |
805 | return -E2BIG; | |
e71a4783 | 806 | } while (c == ','); |
ca6549af SW |
807 | |
808 | pkt_dev->nr_labels = n; | |
809 | return i; | |
810 | } | |
811 | ||
222f1806 LC |
812 | static ssize_t pktgen_if_write(struct file *file, |
813 | const char __user * user_buffer, size_t count, | |
814 | loff_t * offset) | |
1da177e4 | 815 | { |
222f1806 LC |
816 | struct seq_file *seq = (struct seq_file *)file->private_data; |
817 | struct pktgen_dev *pkt_dev = seq->private; | |
1da177e4 LT |
818 | int i = 0, max, len; |
819 | char name[16], valstr[32]; | |
820 | unsigned long value = 0; | |
222f1806 LC |
821 | char *pg_result = NULL; |
822 | int tmp = 0; | |
1da177e4 | 823 | char buf[128]; |
222f1806 LC |
824 | |
825 | pg_result = &(pkt_dev->result[0]); | |
826 | ||
1da177e4 | 827 | if (count < 1) { |
25a8b254 | 828 | printk(KERN_WARNING "pktgen: wrong command format\n"); |
1da177e4 LT |
829 | return -EINVAL; |
830 | } | |
222f1806 | 831 | |
1da177e4 LT |
832 | max = count - i; |
833 | tmp = count_trail_chars(&user_buffer[i], max); | |
222f1806 | 834 | if (tmp < 0) { |
25a8b254 | 835 | printk(KERN_WARNING "pktgen: illegal format\n"); |
222f1806 | 836 | return tmp; |
1da177e4 | 837 | } |
222f1806 LC |
838 | i += tmp; |
839 | ||
1da177e4 LT |
840 | /* Read variable name */ |
841 | ||
842 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
222f1806 LC |
843 | if (len < 0) { |
844 | return len; | |
845 | } | |
1da177e4 | 846 | memset(name, 0, sizeof(name)); |
222f1806 | 847 | if (copy_from_user(name, &user_buffer[i], len)) |
1da177e4 LT |
848 | return -EFAULT; |
849 | i += len; | |
222f1806 LC |
850 | |
851 | max = count - i; | |
1da177e4 | 852 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 LC |
853 | if (len < 0) |
854 | return len; | |
855 | ||
1da177e4 LT |
856 | i += len; |
857 | ||
858 | if (debug) { | |
222f1806 LC |
859 | char tb[count + 1]; |
860 | if (copy_from_user(tb, user_buffer, count)) | |
1da177e4 | 861 | return -EFAULT; |
222f1806 | 862 | tb[count] = 0; |
25a8b254 | 863 | printk(KERN_DEBUG "pktgen: %s,%lu buffer -:%s:-\n", name, |
222f1806 LC |
864 | (unsigned long)count, tb); |
865 | } | |
1da177e4 LT |
866 | |
867 | if (!strcmp(name, "min_pkt_size")) { | |
868 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
869 | if (len < 0) { |
870 | return len; | |
871 | } | |
1da177e4 | 872 | i += len; |
222f1806 LC |
873 | if (value < 14 + 20 + 8) |
874 | value = 14 + 20 + 8; | |
875 | if (value != pkt_dev->min_pkt_size) { | |
876 | pkt_dev->min_pkt_size = value; | |
877 | pkt_dev->cur_pkt_size = value; | |
878 | } | |
879 | sprintf(pg_result, "OK: min_pkt_size=%u", | |
880 | pkt_dev->min_pkt_size); | |
1da177e4 LT |
881 | return count; |
882 | } | |
883 | ||
222f1806 | 884 | if (!strcmp(name, "max_pkt_size")) { |
1da177e4 | 885 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
886 | if (len < 0) { |
887 | return len; | |
888 | } | |
1da177e4 | 889 | i += len; |
222f1806 LC |
890 | if (value < 14 + 20 + 8) |
891 | value = 14 + 20 + 8; | |
892 | if (value != pkt_dev->max_pkt_size) { | |
893 | pkt_dev->max_pkt_size = value; | |
894 | pkt_dev->cur_pkt_size = value; | |
895 | } | |
896 | sprintf(pg_result, "OK: max_pkt_size=%u", | |
897 | pkt_dev->max_pkt_size); | |
1da177e4 LT |
898 | return count; |
899 | } | |
900 | ||
222f1806 | 901 | /* Shortcut for min = max */ |
1da177e4 LT |
902 | |
903 | if (!strcmp(name, "pkt_size")) { | |
904 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
905 | if (len < 0) { |
906 | return len; | |
907 | } | |
1da177e4 | 908 | i += len; |
222f1806 LC |
909 | if (value < 14 + 20 + 8) |
910 | value = 14 + 20 + 8; | |
911 | if (value != pkt_dev->min_pkt_size) { | |
912 | pkt_dev->min_pkt_size = value; | |
913 | pkt_dev->max_pkt_size = value; | |
914 | pkt_dev->cur_pkt_size = value; | |
915 | } | |
1da177e4 LT |
916 | sprintf(pg_result, "OK: pkt_size=%u", pkt_dev->min_pkt_size); |
917 | return count; | |
918 | } | |
919 | ||
222f1806 | 920 | if (!strcmp(name, "debug")) { |
1da177e4 | 921 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
922 | if (len < 0) { |
923 | return len; | |
924 | } | |
1da177e4 | 925 | i += len; |
222f1806 | 926 | debug = value; |
1da177e4 LT |
927 | sprintf(pg_result, "OK: debug=%u", debug); |
928 | return count; | |
929 | } | |
930 | ||
222f1806 | 931 | if (!strcmp(name, "frags")) { |
1da177e4 | 932 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
933 | if (len < 0) { |
934 | return len; | |
935 | } | |
1da177e4 LT |
936 | i += len; |
937 | pkt_dev->nfrags = value; | |
938 | sprintf(pg_result, "OK: frags=%u", pkt_dev->nfrags); | |
939 | return count; | |
940 | } | |
941 | if (!strcmp(name, "delay")) { | |
942 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
943 | if (len < 0) { |
944 | return len; | |
945 | } | |
1da177e4 LT |
946 | i += len; |
947 | if (value == 0x7FFFFFFF) { | |
948 | pkt_dev->delay_us = 0x7FFFFFFF; | |
949 | pkt_dev->delay_ns = 0; | |
950 | } else { | |
951 | pkt_dev->delay_us = value / 1000; | |
952 | pkt_dev->delay_ns = value % 1000; | |
953 | } | |
222f1806 LC |
954 | sprintf(pg_result, "OK: delay=%u", |
955 | 1000 * pkt_dev->delay_us + pkt_dev->delay_ns); | |
1da177e4 LT |
956 | return count; |
957 | } | |
222f1806 | 958 | if (!strcmp(name, "udp_src_min")) { |
1da177e4 | 959 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
960 | if (len < 0) { |
961 | return len; | |
962 | } | |
1da177e4 | 963 | i += len; |
222f1806 LC |
964 | if (value != pkt_dev->udp_src_min) { |
965 | pkt_dev->udp_src_min = value; | |
966 | pkt_dev->cur_udp_src = value; | |
967 | } | |
1da177e4 LT |
968 | sprintf(pg_result, "OK: udp_src_min=%u", pkt_dev->udp_src_min); |
969 | return count; | |
970 | } | |
222f1806 | 971 | if (!strcmp(name, "udp_dst_min")) { |
1da177e4 | 972 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
973 | if (len < 0) { |
974 | return len; | |
975 | } | |
1da177e4 | 976 | i += len; |
222f1806 LC |
977 | if (value != pkt_dev->udp_dst_min) { |
978 | pkt_dev->udp_dst_min = value; | |
979 | pkt_dev->cur_udp_dst = value; | |
980 | } | |
1da177e4 LT |
981 | sprintf(pg_result, "OK: udp_dst_min=%u", pkt_dev->udp_dst_min); |
982 | return count; | |
983 | } | |
222f1806 | 984 | if (!strcmp(name, "udp_src_max")) { |
1da177e4 | 985 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
986 | if (len < 0) { |
987 | return len; | |
988 | } | |
1da177e4 | 989 | i += len; |
222f1806 LC |
990 | if (value != pkt_dev->udp_src_max) { |
991 | pkt_dev->udp_src_max = value; | |
992 | pkt_dev->cur_udp_src = value; | |
993 | } | |
1da177e4 LT |
994 | sprintf(pg_result, "OK: udp_src_max=%u", pkt_dev->udp_src_max); |
995 | return count; | |
996 | } | |
222f1806 | 997 | if (!strcmp(name, "udp_dst_max")) { |
1da177e4 | 998 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
999 | if (len < 0) { |
1000 | return len; | |
1001 | } | |
1da177e4 | 1002 | i += len; |
222f1806 LC |
1003 | if (value != pkt_dev->udp_dst_max) { |
1004 | pkt_dev->udp_dst_max = value; | |
1005 | pkt_dev->cur_udp_dst = value; | |
1006 | } | |
1da177e4 LT |
1007 | sprintf(pg_result, "OK: udp_dst_max=%u", pkt_dev->udp_dst_max); |
1008 | return count; | |
1009 | } | |
1010 | if (!strcmp(name, "clone_skb")) { | |
1011 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1012 | if (len < 0) { |
1013 | return len; | |
1014 | } | |
1da177e4 | 1015 | i += len; |
222f1806 LC |
1016 | pkt_dev->clone_skb = value; |
1017 | ||
1da177e4 LT |
1018 | sprintf(pg_result, "OK: clone_skb=%d", pkt_dev->clone_skb); |
1019 | return count; | |
1020 | } | |
1021 | if (!strcmp(name, "count")) { | |
1022 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1023 | if (len < 0) { |
1024 | return len; | |
1025 | } | |
1da177e4 LT |
1026 | i += len; |
1027 | pkt_dev->count = value; | |
1028 | sprintf(pg_result, "OK: count=%llu", | |
222f1806 | 1029 | (unsigned long long)pkt_dev->count); |
1da177e4 LT |
1030 | return count; |
1031 | } | |
1032 | if (!strcmp(name, "src_mac_count")) { | |
1033 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1034 | if (len < 0) { |
1035 | return len; | |
1036 | } | |
1da177e4 LT |
1037 | i += len; |
1038 | if (pkt_dev->src_mac_count != value) { | |
222f1806 LC |
1039 | pkt_dev->src_mac_count = value; |
1040 | pkt_dev->cur_src_mac_offset = 0; | |
1041 | } | |
1042 | sprintf(pg_result, "OK: src_mac_count=%d", | |
1043 | pkt_dev->src_mac_count); | |
1da177e4 LT |
1044 | return count; |
1045 | } | |
1046 | if (!strcmp(name, "dst_mac_count")) { | |
1047 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1048 | if (len < 0) { |
1049 | return len; | |
1050 | } | |
1da177e4 LT |
1051 | i += len; |
1052 | if (pkt_dev->dst_mac_count != value) { | |
222f1806 LC |
1053 | pkt_dev->dst_mac_count = value; |
1054 | pkt_dev->cur_dst_mac_offset = 0; | |
1055 | } | |
1056 | sprintf(pg_result, "OK: dst_mac_count=%d", | |
1057 | pkt_dev->dst_mac_count); | |
1da177e4 LT |
1058 | return count; |
1059 | } | |
1060 | if (!strcmp(name, "flag")) { | |
222f1806 LC |
1061 | char f[32]; |
1062 | memset(f, 0, 32); | |
1da177e4 | 1063 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
222f1806 LC |
1064 | if (len < 0) { |
1065 | return len; | |
1066 | } | |
1da177e4 LT |
1067 | if (copy_from_user(f, &user_buffer[i], len)) |
1068 | return -EFAULT; | |
1069 | i += len; | |
222f1806 LC |
1070 | if (strcmp(f, "IPSRC_RND") == 0) |
1071 | pkt_dev->flags |= F_IPSRC_RND; | |
1072 | ||
1073 | else if (strcmp(f, "!IPSRC_RND") == 0) | |
1074 | pkt_dev->flags &= ~F_IPSRC_RND; | |
1075 | ||
1076 | else if (strcmp(f, "TXSIZE_RND") == 0) | |
1077 | pkt_dev->flags |= F_TXSIZE_RND; | |
1078 | ||
1079 | else if (strcmp(f, "!TXSIZE_RND") == 0) | |
1080 | pkt_dev->flags &= ~F_TXSIZE_RND; | |
1081 | ||
1082 | else if (strcmp(f, "IPDST_RND") == 0) | |
1083 | pkt_dev->flags |= F_IPDST_RND; | |
1084 | ||
1085 | else if (strcmp(f, "!IPDST_RND") == 0) | |
1086 | pkt_dev->flags &= ~F_IPDST_RND; | |
1087 | ||
1088 | else if (strcmp(f, "UDPSRC_RND") == 0) | |
1089 | pkt_dev->flags |= F_UDPSRC_RND; | |
1090 | ||
1091 | else if (strcmp(f, "!UDPSRC_RND") == 0) | |
1092 | pkt_dev->flags &= ~F_UDPSRC_RND; | |
1093 | ||
1094 | else if (strcmp(f, "UDPDST_RND") == 0) | |
1095 | pkt_dev->flags |= F_UDPDST_RND; | |
1096 | ||
1097 | else if (strcmp(f, "!UDPDST_RND") == 0) | |
1098 | pkt_dev->flags &= ~F_UDPDST_RND; | |
1099 | ||
1100 | else if (strcmp(f, "MACSRC_RND") == 0) | |
1101 | pkt_dev->flags |= F_MACSRC_RND; | |
1102 | ||
1103 | else if (strcmp(f, "!MACSRC_RND") == 0) | |
1104 | pkt_dev->flags &= ~F_MACSRC_RND; | |
1105 | ||
1106 | else if (strcmp(f, "MACDST_RND") == 0) | |
1107 | pkt_dev->flags |= F_MACDST_RND; | |
1108 | ||
1109 | else if (strcmp(f, "!MACDST_RND") == 0) | |
1110 | pkt_dev->flags &= ~F_MACDST_RND; | |
1111 | ||
ca6549af SW |
1112 | else if (strcmp(f, "MPLS_RND") == 0) |
1113 | pkt_dev->flags |= F_MPLS_RND; | |
1114 | ||
1115 | else if (strcmp(f, "!MPLS_RND") == 0) | |
1116 | pkt_dev->flags &= ~F_MPLS_RND; | |
1117 | ||
34954ddc FF |
1118 | else if (strcmp(f, "VID_RND") == 0) |
1119 | pkt_dev->flags |= F_VID_RND; | |
1120 | ||
1121 | else if (strcmp(f, "!VID_RND") == 0) | |
1122 | pkt_dev->flags &= ~F_VID_RND; | |
1123 | ||
1124 | else if (strcmp(f, "SVID_RND") == 0) | |
1125 | pkt_dev->flags |= F_SVID_RND; | |
1126 | ||
1127 | else if (strcmp(f, "!SVID_RND") == 0) | |
1128 | pkt_dev->flags &= ~F_SVID_RND; | |
1129 | ||
007a531b JHS |
1130 | else if (strcmp(f, "FLOW_SEQ") == 0) |
1131 | pkt_dev->flags |= F_FLOW_SEQ; | |
1132 | ||
45b270f8 RO |
1133 | else if (strcmp(f, "QUEUE_MAP_RND") == 0) |
1134 | pkt_dev->flags |= F_QUEUE_MAP_RND; | |
1135 | ||
1136 | else if (strcmp(f, "!QUEUE_MAP_RND") == 0) | |
1137 | pkt_dev->flags &= ~F_QUEUE_MAP_RND; | |
a553e4a6 JHS |
1138 | #ifdef CONFIG_XFRM |
1139 | else if (strcmp(f, "IPSEC") == 0) | |
1140 | pkt_dev->flags |= F_IPSEC_ON; | |
1141 | #endif | |
1142 | ||
1ca7768c FF |
1143 | else if (strcmp(f, "!IPV6") == 0) |
1144 | pkt_dev->flags &= ~F_IPV6; | |
1145 | ||
222f1806 LC |
1146 | else { |
1147 | sprintf(pg_result, | |
1148 | "Flag -:%s:- unknown\nAvailable flags, (prepend ! to un-set flag):\n%s", | |
1149 | f, | |
1ca7768c | 1150 | "IPSRC_RND, IPDST_RND, UDPSRC_RND, UDPDST_RND, " |
a553e4a6 | 1151 | "MACSRC_RND, MACDST_RND, TXSIZE_RND, IPV6, MPLS_RND, VID_RND, SVID_RND, FLOW_SEQ, IPSEC\n"); |
222f1806 LC |
1152 | return count; |
1153 | } | |
1da177e4 LT |
1154 | sprintf(pg_result, "OK: flags=0x%x", pkt_dev->flags); |
1155 | return count; | |
1156 | } | |
1157 | if (!strcmp(name, "dst_min") || !strcmp(name, "dst")) { | |
1158 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_min) - 1); | |
222f1806 LC |
1159 | if (len < 0) { |
1160 | return len; | |
1161 | } | |
1da177e4 | 1162 | |
222f1806 | 1163 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1164 | return -EFAULT; |
222f1806 LC |
1165 | buf[len] = 0; |
1166 | if (strcmp(buf, pkt_dev->dst_min) != 0) { | |
1167 | memset(pkt_dev->dst_min, 0, sizeof(pkt_dev->dst_min)); | |
1168 | strncpy(pkt_dev->dst_min, buf, len); | |
1169 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
1170 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
1171 | } | |
1172 | if (debug) | |
25a8b254 | 1173 | printk(KERN_DEBUG "pktgen: dst_min set to: %s\n", |
222f1806 LC |
1174 | pkt_dev->dst_min); |
1175 | i += len; | |
1da177e4 LT |
1176 | sprintf(pg_result, "OK: dst_min=%s", pkt_dev->dst_min); |
1177 | return count; | |
1178 | } | |
1179 | if (!strcmp(name, "dst_max")) { | |
1180 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_max) - 1); | |
222f1806 LC |
1181 | if (len < 0) { |
1182 | return len; | |
1183 | } | |
1da177e4 | 1184 | |
222f1806 | 1185 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 LT |
1186 | return -EFAULT; |
1187 | ||
222f1806 LC |
1188 | buf[len] = 0; |
1189 | if (strcmp(buf, pkt_dev->dst_max) != 0) { | |
1190 | memset(pkt_dev->dst_max, 0, sizeof(pkt_dev->dst_max)); | |
1191 | strncpy(pkt_dev->dst_max, buf, len); | |
1192 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
1193 | pkt_dev->cur_daddr = pkt_dev->daddr_max; | |
1194 | } | |
1195 | if (debug) | |
25a8b254 | 1196 | printk(KERN_DEBUG "pktgen: dst_max set to: %s\n", |
222f1806 | 1197 | pkt_dev->dst_max); |
1da177e4 LT |
1198 | i += len; |
1199 | sprintf(pg_result, "OK: dst_max=%s", pkt_dev->dst_max); | |
1200 | return count; | |
1201 | } | |
1202 | if (!strcmp(name, "dst6")) { | |
1203 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1204 | if (len < 0) |
1205 | return len; | |
1da177e4 LT |
1206 | |
1207 | pkt_dev->flags |= F_IPV6; | |
1208 | ||
222f1806 | 1209 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1210 | return -EFAULT; |
222f1806 | 1211 | buf[len] = 0; |
1da177e4 LT |
1212 | |
1213 | scan_ip6(buf, pkt_dev->in6_daddr.s6_addr); | |
222f1806 | 1214 | fmt_ip6(buf, pkt_dev->in6_daddr.s6_addr); |
1da177e4 LT |
1215 | |
1216 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, &pkt_dev->in6_daddr); | |
1217 | ||
222f1806 | 1218 | if (debug) |
25a8b254 | 1219 | printk(KERN_DEBUG "pktgen: dst6 set to: %s\n", buf); |
1da177e4 | 1220 | |
222f1806 | 1221 | i += len; |
1da177e4 LT |
1222 | sprintf(pg_result, "OK: dst6=%s", buf); |
1223 | return count; | |
1224 | } | |
1225 | if (!strcmp(name, "dst6_min")) { | |
1226 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1227 | if (len < 0) |
1228 | return len; | |
1da177e4 LT |
1229 | |
1230 | pkt_dev->flags |= F_IPV6; | |
1231 | ||
222f1806 | 1232 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1233 | return -EFAULT; |
222f1806 | 1234 | buf[len] = 0; |
1da177e4 LT |
1235 | |
1236 | scan_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); | |
222f1806 | 1237 | fmt_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); |
1da177e4 | 1238 | |
222f1806 LC |
1239 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, |
1240 | &pkt_dev->min_in6_daddr); | |
1241 | if (debug) | |
25a8b254 | 1242 | printk(KERN_DEBUG "pktgen: dst6_min set to: %s\n", buf); |
1da177e4 | 1243 | |
222f1806 | 1244 | i += len; |
1da177e4 LT |
1245 | sprintf(pg_result, "OK: dst6_min=%s", buf); |
1246 | return count; | |
1247 | } | |
1248 | if (!strcmp(name, "dst6_max")) { | |
1249 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1250 | if (len < 0) |
1251 | return len; | |
1da177e4 LT |
1252 | |
1253 | pkt_dev->flags |= F_IPV6; | |
1254 | ||
222f1806 | 1255 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1256 | return -EFAULT; |
222f1806 | 1257 | buf[len] = 0; |
1da177e4 LT |
1258 | |
1259 | scan_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); | |
222f1806 | 1260 | fmt_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); |
1da177e4 | 1261 | |
222f1806 | 1262 | if (debug) |
25a8b254 | 1263 | printk(KERN_DEBUG "pktgen: dst6_max set to: %s\n", buf); |
1da177e4 | 1264 | |
222f1806 | 1265 | i += len; |
1da177e4 LT |
1266 | sprintf(pg_result, "OK: dst6_max=%s", buf); |
1267 | return count; | |
1268 | } | |
1269 | if (!strcmp(name, "src6")) { | |
1270 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1271 | if (len < 0) |
1272 | return len; | |
1da177e4 LT |
1273 | |
1274 | pkt_dev->flags |= F_IPV6; | |
1275 | ||
222f1806 | 1276 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1277 | return -EFAULT; |
222f1806 | 1278 | buf[len] = 0; |
1da177e4 LT |
1279 | |
1280 | scan_ip6(buf, pkt_dev->in6_saddr.s6_addr); | |
222f1806 | 1281 | fmt_ip6(buf, pkt_dev->in6_saddr.s6_addr); |
1da177e4 LT |
1282 | |
1283 | ipv6_addr_copy(&pkt_dev->cur_in6_saddr, &pkt_dev->in6_saddr); | |
1284 | ||
222f1806 | 1285 | if (debug) |
25a8b254 | 1286 | printk(KERN_DEBUG "pktgen: src6 set to: %s\n", buf); |
222f1806 LC |
1287 | |
1288 | i += len; | |
1da177e4 LT |
1289 | sprintf(pg_result, "OK: src6=%s", buf); |
1290 | return count; | |
1291 | } | |
1292 | if (!strcmp(name, "src_min")) { | |
1293 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_min) - 1); | |
222f1806 LC |
1294 | if (len < 0) { |
1295 | return len; | |
1296 | } | |
1297 | if (copy_from_user(buf, &user_buffer[i], len)) | |
1da177e4 | 1298 | return -EFAULT; |
222f1806 LC |
1299 | buf[len] = 0; |
1300 | if (strcmp(buf, pkt_dev->src_min) != 0) { | |
1301 | memset(pkt_dev->src_min, 0, sizeof(pkt_dev->src_min)); | |
1302 | strncpy(pkt_dev->src_min, buf, len); | |
1303 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); | |
1304 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
1305 | } | |
1306 | if (debug) | |
25a8b254 | 1307 | printk(KERN_DEBUG "pktgen: src_min set to: %s\n", |
222f1806 | 1308 | pkt_dev->src_min); |
1da177e4 LT |
1309 | i += len; |
1310 | sprintf(pg_result, "OK: src_min=%s", pkt_dev->src_min); | |
1311 | return count; | |
1312 | } | |
1313 | if (!strcmp(name, "src_max")) { | |
1314 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_max) - 1); | |
222f1806 LC |
1315 | if (len < 0) { |
1316 | return len; | |
1317 | } | |
1318 | if (copy_from_user(buf, &user_buffer[i], len)) | |
1da177e4 | 1319 | return -EFAULT; |
222f1806 LC |
1320 | buf[len] = 0; |
1321 | if (strcmp(buf, pkt_dev->src_max) != 0) { | |
1322 | memset(pkt_dev->src_max, 0, sizeof(pkt_dev->src_max)); | |
1323 | strncpy(pkt_dev->src_max, buf, len); | |
1324 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
1325 | pkt_dev->cur_saddr = pkt_dev->saddr_max; | |
1326 | } | |
1327 | if (debug) | |
25a8b254 | 1328 | printk(KERN_DEBUG "pktgen: src_max set to: %s\n", |
222f1806 | 1329 | pkt_dev->src_max); |
1da177e4 LT |
1330 | i += len; |
1331 | sprintf(pg_result, "OK: src_max=%s", pkt_dev->src_max); | |
1332 | return count; | |
1333 | } | |
1334 | if (!strcmp(name, "dst_mac")) { | |
1335 | char *v = valstr; | |
f404e9a6 | 1336 | unsigned char old_dmac[ETH_ALEN]; |
1da177e4 | 1337 | unsigned char *m = pkt_dev->dst_mac; |
f404e9a6 | 1338 | memcpy(old_dmac, pkt_dev->dst_mac, ETH_ALEN); |
222f1806 | 1339 | |
1da177e4 | 1340 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
222f1806 LC |
1341 | if (len < 0) { |
1342 | return len; | |
1343 | } | |
1da177e4 | 1344 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1345 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1346 | return -EFAULT; |
1347 | i += len; | |
1348 | ||
222f1806 | 1349 | for (*m = 0; *v && m < pkt_dev->dst_mac + 6; v++) { |
1da177e4 LT |
1350 | if (*v >= '0' && *v <= '9') { |
1351 | *m *= 16; | |
1352 | *m += *v - '0'; | |
1353 | } | |
1354 | if (*v >= 'A' && *v <= 'F') { | |
1355 | *m *= 16; | |
1356 | *m += *v - 'A' + 10; | |
1357 | } | |
1358 | if (*v >= 'a' && *v <= 'f') { | |
1359 | *m *= 16; | |
1360 | *m += *v - 'a' + 10; | |
1361 | } | |
1362 | if (*v == ':') { | |
1363 | m++; | |
1364 | *m = 0; | |
1365 | } | |
1366 | } | |
1367 | ||
1368 | /* Set up Dest MAC */ | |
f404e9a6 KK |
1369 | if (compare_ether_addr(old_dmac, pkt_dev->dst_mac)) |
1370 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); | |
222f1806 | 1371 | |
1da177e4 LT |
1372 | sprintf(pg_result, "OK: dstmac"); |
1373 | return count; | |
1374 | } | |
1375 | if (!strcmp(name, "src_mac")) { | |
1376 | char *v = valstr; | |
ce5d0b47 | 1377 | unsigned char old_smac[ETH_ALEN]; |
1da177e4 LT |
1378 | unsigned char *m = pkt_dev->src_mac; |
1379 | ||
ce5d0b47 AR |
1380 | memcpy(old_smac, pkt_dev->src_mac, ETH_ALEN); |
1381 | ||
1da177e4 | 1382 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
222f1806 LC |
1383 | if (len < 0) { |
1384 | return len; | |
1385 | } | |
1da177e4 | 1386 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1387 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1388 | return -EFAULT; |
1389 | i += len; | |
1390 | ||
222f1806 | 1391 | for (*m = 0; *v && m < pkt_dev->src_mac + 6; v++) { |
1da177e4 LT |
1392 | if (*v >= '0' && *v <= '9') { |
1393 | *m *= 16; | |
1394 | *m += *v - '0'; | |
1395 | } | |
1396 | if (*v >= 'A' && *v <= 'F') { | |
1397 | *m *= 16; | |
1398 | *m += *v - 'A' + 10; | |
1399 | } | |
1400 | if (*v >= 'a' && *v <= 'f') { | |
1401 | *m *= 16; | |
1402 | *m += *v - 'a' + 10; | |
1403 | } | |
1404 | if (*v == ':') { | |
1405 | m++; | |
1406 | *m = 0; | |
1407 | } | |
222f1806 | 1408 | } |
1da177e4 | 1409 | |
ce5d0b47 AR |
1410 | /* Set up Src MAC */ |
1411 | if (compare_ether_addr(old_smac, pkt_dev->src_mac)) | |
1412 | memcpy(&(pkt_dev->hh[6]), pkt_dev->src_mac, ETH_ALEN); | |
1413 | ||
222f1806 | 1414 | sprintf(pg_result, "OK: srcmac"); |
1da177e4 LT |
1415 | return count; |
1416 | } | |
1417 | ||
222f1806 LC |
1418 | if (!strcmp(name, "clear_counters")) { |
1419 | pktgen_clear_counters(pkt_dev); | |
1420 | sprintf(pg_result, "OK: Clearing counters.\n"); | |
1421 | return count; | |
1422 | } | |
1da177e4 LT |
1423 | |
1424 | if (!strcmp(name, "flows")) { | |
1425 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1426 | if (len < 0) { |
1427 | return len; | |
1428 | } | |
1da177e4 LT |
1429 | i += len; |
1430 | if (value > MAX_CFLOWS) | |
1431 | value = MAX_CFLOWS; | |
1432 | ||
1433 | pkt_dev->cflows = value; | |
1434 | sprintf(pg_result, "OK: flows=%u", pkt_dev->cflows); | |
1435 | return count; | |
1436 | } | |
1437 | ||
1438 | if (!strcmp(name, "flowlen")) { | |
1439 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1440 | if (len < 0) { |
1441 | return len; | |
1442 | } | |
1da177e4 LT |
1443 | i += len; |
1444 | pkt_dev->lflow = value; | |
1445 | sprintf(pg_result, "OK: flowlen=%u", pkt_dev->lflow); | |
1446 | return count; | |
1447 | } | |
222f1806 | 1448 | |
45b270f8 RO |
1449 | if (!strcmp(name, "queue_map_min")) { |
1450 | len = num_arg(&user_buffer[i], 5, &value); | |
1451 | if (len < 0) { | |
1452 | return len; | |
1453 | } | |
1454 | i += len; | |
1455 | pkt_dev->queue_map_min = value; | |
1456 | sprintf(pg_result, "OK: queue_map_min=%u", pkt_dev->queue_map_min); | |
1457 | return count; | |
1458 | } | |
1459 | ||
1460 | if (!strcmp(name, "queue_map_max")) { | |
1461 | len = num_arg(&user_buffer[i], 5, &value); | |
1462 | if (len < 0) { | |
1463 | return len; | |
1464 | } | |
1465 | i += len; | |
1466 | pkt_dev->queue_map_max = value; | |
1467 | sprintf(pg_result, "OK: queue_map_max=%u", pkt_dev->queue_map_max); | |
1468 | return count; | |
1469 | } | |
1470 | ||
ca6549af | 1471 | if (!strcmp(name, "mpls")) { |
cfcabdcc SH |
1472 | unsigned n, cnt; |
1473 | ||
ca6549af | 1474 | len = get_labels(&user_buffer[i], pkt_dev); |
cfcabdcc SH |
1475 | if (len < 0) |
1476 | return len; | |
ca6549af | 1477 | i += len; |
cfcabdcc | 1478 | cnt = sprintf(pg_result, "OK: mpls="); |
e71a4783 | 1479 | for (n = 0; n < pkt_dev->nr_labels; n++) |
cfcabdcc SH |
1480 | cnt += sprintf(pg_result + cnt, |
1481 | "%08x%s", ntohl(pkt_dev->labels[n]), | |
1482 | n == pkt_dev->nr_labels-1 ? "" : ","); | |
34954ddc FF |
1483 | |
1484 | if (pkt_dev->nr_labels && pkt_dev->vlan_id != 0xffff) { | |
1485 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1486 | pkt_dev->svlan_id = 0xffff; | |
1487 | ||
1488 | if (debug) | |
25a8b254 | 1489 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN auto turned off\n"); |
34954ddc FF |
1490 | } |
1491 | return count; | |
1492 | } | |
1493 | ||
1494 | if (!strcmp(name, "vlan_id")) { | |
1495 | len = num_arg(&user_buffer[i], 4, &value); | |
1496 | if (len < 0) { | |
1497 | return len; | |
1498 | } | |
1499 | i += len; | |
1500 | if (value <= 4095) { | |
1501 | pkt_dev->vlan_id = value; /* turn on VLAN */ | |
1502 | ||
1503 | if (debug) | |
25a8b254 | 1504 | printk(KERN_DEBUG "pktgen: VLAN turned on\n"); |
34954ddc FF |
1505 | |
1506 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1507 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1508 | |
1509 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1510 | sprintf(pg_result, "OK: vlan_id=%u", pkt_dev->vlan_id); | |
1511 | } else { | |
1512 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1513 | pkt_dev->svlan_id = 0xffff; | |
1514 | ||
1515 | if (debug) | |
25a8b254 | 1516 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1517 | } |
1518 | return count; | |
1519 | } | |
1520 | ||
1521 | if (!strcmp(name, "vlan_p")) { | |
1522 | len = num_arg(&user_buffer[i], 1, &value); | |
1523 | if (len < 0) { | |
1524 | return len; | |
1525 | } | |
1526 | i += len; | |
1527 | if ((value <= 7) && (pkt_dev->vlan_id != 0xffff)) { | |
1528 | pkt_dev->vlan_p = value; | |
1529 | sprintf(pg_result, "OK: vlan_p=%u", pkt_dev->vlan_p); | |
1530 | } else { | |
1531 | sprintf(pg_result, "ERROR: vlan_p must be 0-7"); | |
1532 | } | |
1533 | return count; | |
1534 | } | |
1535 | ||
1536 | if (!strcmp(name, "vlan_cfi")) { | |
1537 | len = num_arg(&user_buffer[i], 1, &value); | |
1538 | if (len < 0) { | |
1539 | return len; | |
1540 | } | |
1541 | i += len; | |
1542 | if ((value <= 1) && (pkt_dev->vlan_id != 0xffff)) { | |
1543 | pkt_dev->vlan_cfi = value; | |
1544 | sprintf(pg_result, "OK: vlan_cfi=%u", pkt_dev->vlan_cfi); | |
1545 | } else { | |
1546 | sprintf(pg_result, "ERROR: vlan_cfi must be 0-1"); | |
1547 | } | |
1548 | return count; | |
1549 | } | |
1550 | ||
1551 | if (!strcmp(name, "svlan_id")) { | |
1552 | len = num_arg(&user_buffer[i], 4, &value); | |
1553 | if (len < 0) { | |
1554 | return len; | |
1555 | } | |
1556 | i += len; | |
1557 | if ((value <= 4095) && ((pkt_dev->vlan_id != 0xffff))) { | |
1558 | pkt_dev->svlan_id = value; /* turn on SVLAN */ | |
1559 | ||
1560 | if (debug) | |
25a8b254 | 1561 | printk(KERN_DEBUG "pktgen: SVLAN turned on\n"); |
34954ddc FF |
1562 | |
1563 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1564 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1565 | |
1566 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1567 | sprintf(pg_result, "OK: svlan_id=%u", pkt_dev->svlan_id); | |
1568 | } else { | |
1569 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1570 | pkt_dev->svlan_id = 0xffff; | |
1571 | ||
1572 | if (debug) | |
25a8b254 | 1573 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1574 | } |
1575 | return count; | |
1576 | } | |
1577 | ||
1578 | if (!strcmp(name, "svlan_p")) { | |
1579 | len = num_arg(&user_buffer[i], 1, &value); | |
1580 | if (len < 0) { | |
1581 | return len; | |
1582 | } | |
1583 | i += len; | |
1584 | if ((value <= 7) && (pkt_dev->svlan_id != 0xffff)) { | |
1585 | pkt_dev->svlan_p = value; | |
1586 | sprintf(pg_result, "OK: svlan_p=%u", pkt_dev->svlan_p); | |
1587 | } else { | |
1588 | sprintf(pg_result, "ERROR: svlan_p must be 0-7"); | |
1589 | } | |
1590 | return count; | |
1591 | } | |
1592 | ||
1593 | if (!strcmp(name, "svlan_cfi")) { | |
1594 | len = num_arg(&user_buffer[i], 1, &value); | |
1595 | if (len < 0) { | |
1596 | return len; | |
1597 | } | |
1598 | i += len; | |
1599 | if ((value <= 1) && (pkt_dev->svlan_id != 0xffff)) { | |
1600 | pkt_dev->svlan_cfi = value; | |
1601 | sprintf(pg_result, "OK: svlan_cfi=%u", pkt_dev->svlan_cfi); | |
1602 | } else { | |
1603 | sprintf(pg_result, "ERROR: svlan_cfi must be 0-1"); | |
1604 | } | |
ca6549af SW |
1605 | return count; |
1606 | } | |
1607 | ||
1ca7768c FF |
1608 | if (!strcmp(name, "tos")) { |
1609 | __u32 tmp_value = 0; | |
1610 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
1611 | if (len < 0) { | |
1612 | return len; | |
1613 | } | |
1614 | i += len; | |
1615 | if (len == 2) { | |
1616 | pkt_dev->tos = tmp_value; | |
1617 | sprintf(pg_result, "OK: tos=0x%02x", pkt_dev->tos); | |
1618 | } else { | |
1619 | sprintf(pg_result, "ERROR: tos must be 00-ff"); | |
1620 | } | |
1621 | return count; | |
1622 | } | |
1623 | ||
1624 | if (!strcmp(name, "traffic_class")) { | |
1625 | __u32 tmp_value = 0; | |
1626 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
1627 | if (len < 0) { | |
1628 | return len; | |
1629 | } | |
1630 | i += len; | |
1631 | if (len == 2) { | |
1632 | pkt_dev->traffic_class = tmp_value; | |
1633 | sprintf(pg_result, "OK: traffic_class=0x%02x", pkt_dev->traffic_class); | |
1634 | } else { | |
1635 | sprintf(pg_result, "ERROR: traffic_class must be 00-ff"); | |
1636 | } | |
1637 | return count; | |
1638 | } | |
1639 | ||
1da177e4 LT |
1640 | sprintf(pkt_dev->result, "No such parameter \"%s\"", name); |
1641 | return -EINVAL; | |
1642 | } | |
1643 | ||
d50a6b56 | 1644 | static int pktgen_if_open(struct inode *inode, struct file *file) |
1da177e4 | 1645 | { |
d50a6b56 SH |
1646 | return single_open(file, pktgen_if_show, PDE(inode)->data); |
1647 | } | |
1da177e4 | 1648 | |
9a32144e | 1649 | static const struct file_operations pktgen_if_fops = { |
222f1806 LC |
1650 | .owner = THIS_MODULE, |
1651 | .open = pktgen_if_open, | |
1652 | .read = seq_read, | |
1653 | .llseek = seq_lseek, | |
1654 | .write = pktgen_if_write, | |
1655 | .release = single_release, | |
d50a6b56 | 1656 | }; |
1da177e4 | 1657 | |
d50a6b56 SH |
1658 | static int pktgen_thread_show(struct seq_file *seq, void *v) |
1659 | { | |
222f1806 | 1660 | struct pktgen_thread *t = seq->private; |
c26a8016 | 1661 | struct pktgen_dev *pkt_dev; |
d50a6b56 SH |
1662 | |
1663 | BUG_ON(!t); | |
1da177e4 | 1664 | |
222f1806 | 1665 | seq_printf(seq, "Running: "); |
1da177e4 | 1666 | |
222f1806 | 1667 | if_lock(t); |
c26a8016 | 1668 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1669 | if (pkt_dev->running) |
39df232f | 1670 | seq_printf(seq, "%s ", pkt_dev->odev->name); |
1da177e4 | 1671 | |
222f1806 LC |
1672 | seq_printf(seq, "\nStopped: "); |
1673 | ||
c26a8016 | 1674 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1675 | if (!pkt_dev->running) |
39df232f | 1676 | seq_printf(seq, "%s ", pkt_dev->odev->name); |
1da177e4 LT |
1677 | |
1678 | if (t->result[0]) | |
d50a6b56 | 1679 | seq_printf(seq, "\nResult: %s\n", t->result); |
1da177e4 | 1680 | else |
d50a6b56 | 1681 | seq_printf(seq, "\nResult: NA\n"); |
1da177e4 | 1682 | |
222f1806 | 1683 | if_unlock(t); |
1da177e4 | 1684 | |
d50a6b56 | 1685 | return 0; |
1da177e4 LT |
1686 | } |
1687 | ||
d50a6b56 | 1688 | static ssize_t pktgen_thread_write(struct file *file, |
222f1806 LC |
1689 | const char __user * user_buffer, |
1690 | size_t count, loff_t * offset) | |
1da177e4 | 1691 | { |
222f1806 LC |
1692 | struct seq_file *seq = (struct seq_file *)file->private_data; |
1693 | struct pktgen_thread *t = seq->private; | |
1da177e4 LT |
1694 | int i = 0, max, len, ret; |
1695 | char name[40]; | |
222f1806 | 1696 | char *pg_result; |
d50a6b56 | 1697 | |
1da177e4 | 1698 | if (count < 1) { |
222f1806 | 1699 | // sprintf(pg_result, "Wrong command format"); |
1da177e4 LT |
1700 | return -EINVAL; |
1701 | } | |
d50a6b56 | 1702 | |
1da177e4 | 1703 | max = count - i; |
222f1806 LC |
1704 | len = count_trail_chars(&user_buffer[i], max); |
1705 | if (len < 0) | |
d50a6b56 SH |
1706 | return len; |
1707 | ||
1da177e4 | 1708 | i += len; |
d50a6b56 | 1709 | |
1da177e4 LT |
1710 | /* Read variable name */ |
1711 | ||
1712 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
222f1806 | 1713 | if (len < 0) |
d50a6b56 | 1714 | return len; |
222f1806 | 1715 | |
1da177e4 LT |
1716 | memset(name, 0, sizeof(name)); |
1717 | if (copy_from_user(name, &user_buffer[i], len)) | |
1718 | return -EFAULT; | |
1719 | i += len; | |
d50a6b56 | 1720 | |
222f1806 | 1721 | max = count - i; |
1da177e4 | 1722 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 | 1723 | if (len < 0) |
d50a6b56 SH |
1724 | return len; |
1725 | ||
1da177e4 LT |
1726 | i += len; |
1727 | ||
d50a6b56 | 1728 | if (debug) |
25a8b254 DM |
1729 | printk(KERN_DEBUG "pktgen: t=%s, count=%lu\n", |
1730 | name, (unsigned long)count); | |
1da177e4 | 1731 | |
222f1806 | 1732 | if (!t) { |
25a8b254 | 1733 | printk(KERN_ERR "pktgen: ERROR: No thread\n"); |
1da177e4 LT |
1734 | ret = -EINVAL; |
1735 | goto out; | |
1736 | } | |
1737 | ||
1738 | pg_result = &(t->result[0]); | |
1739 | ||
222f1806 LC |
1740 | if (!strcmp(name, "add_device")) { |
1741 | char f[32]; | |
1742 | memset(f, 0, 32); | |
1da177e4 | 1743 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
222f1806 LC |
1744 | if (len < 0) { |
1745 | ret = len; | |
1da177e4 LT |
1746 | goto out; |
1747 | } | |
222f1806 | 1748 | if (copy_from_user(f, &user_buffer[i], len)) |
1da177e4 LT |
1749 | return -EFAULT; |
1750 | i += len; | |
6146e6a4 | 1751 | mutex_lock(&pktgen_thread_lock); |
222f1806 | 1752 | pktgen_add_device(t, f); |
6146e6a4 | 1753 | mutex_unlock(&pktgen_thread_lock); |
222f1806 LC |
1754 | ret = count; |
1755 | sprintf(pg_result, "OK: add_device=%s", f); | |
1da177e4 LT |
1756 | goto out; |
1757 | } | |
1758 | ||
222f1806 | 1759 | if (!strcmp(name, "rem_device_all")) { |
6146e6a4 | 1760 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 | 1761 | t->control |= T_REMDEVALL; |
6146e6a4 | 1762 | mutex_unlock(&pktgen_thread_lock); |
222f1806 | 1763 | schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ |
1da177e4 | 1764 | ret = count; |
222f1806 | 1765 | sprintf(pg_result, "OK: rem_device_all"); |
1da177e4 LT |
1766 | goto out; |
1767 | } | |
1768 | ||
222f1806 | 1769 | if (!strcmp(name, "max_before_softirq")) { |
b163911f | 1770 | sprintf(pg_result, "OK: Note! max_before_softirq is obsoleted -- Do not use"); |
222f1806 | 1771 | ret = count; |
1da177e4 LT |
1772 | goto out; |
1773 | } | |
1774 | ||
1775 | ret = -EINVAL; | |
222f1806 | 1776 | out: |
1da177e4 LT |
1777 | return ret; |
1778 | } | |
1779 | ||
d50a6b56 | 1780 | static int pktgen_thread_open(struct inode *inode, struct file *file) |
1da177e4 | 1781 | { |
d50a6b56 | 1782 | return single_open(file, pktgen_thread_show, PDE(inode)->data); |
1da177e4 LT |
1783 | } |
1784 | ||
9a32144e | 1785 | static const struct file_operations pktgen_thread_fops = { |
222f1806 LC |
1786 | .owner = THIS_MODULE, |
1787 | .open = pktgen_thread_open, | |
1788 | .read = seq_read, | |
1789 | .llseek = seq_lseek, | |
1790 | .write = pktgen_thread_write, | |
1791 | .release = single_release, | |
d50a6b56 | 1792 | }; |
1da177e4 LT |
1793 | |
1794 | /* Think find or remove for NN */ | |
222f1806 | 1795 | static struct pktgen_dev *__pktgen_NN_threads(const char *ifname, int remove) |
1da177e4 LT |
1796 | { |
1797 | struct pktgen_thread *t; | |
1798 | struct pktgen_dev *pkt_dev = NULL; | |
1799 | ||
cdcdbe0b | 1800 | list_for_each_entry(t, &pktgen_threads, th_list) { |
1da177e4 LT |
1801 | pkt_dev = pktgen_find_dev(t, ifname); |
1802 | if (pkt_dev) { | |
222f1806 LC |
1803 | if (remove) { |
1804 | if_lock(t); | |
1805 | pkt_dev->removal_mark = 1; | |
1806 | t->control |= T_REMDEV; | |
1807 | if_unlock(t); | |
1808 | } | |
1da177e4 LT |
1809 | break; |
1810 | } | |
1da177e4 | 1811 | } |
222f1806 | 1812 | return pkt_dev; |
1da177e4 LT |
1813 | } |
1814 | ||
95ed63f7 AK |
1815 | /* |
1816 | * mark a device for removal | |
1817 | */ | |
39df232f | 1818 | static void pktgen_mark_device(const char *ifname) |
1da177e4 LT |
1819 | { |
1820 | struct pktgen_dev *pkt_dev = NULL; | |
95ed63f7 AK |
1821 | const int max_tries = 10, msec_per_try = 125; |
1822 | int i = 0; | |
95ed63f7 | 1823 | |
6146e6a4 | 1824 | mutex_lock(&pktgen_thread_lock); |
25c4e53a | 1825 | pr_debug("pktgen: pktgen_mark_device marking %s for removal\n", ifname); |
95ed63f7 | 1826 | |
222f1806 | 1827 | while (1) { |
95ed63f7 AK |
1828 | |
1829 | pkt_dev = __pktgen_NN_threads(ifname, REMOVE); | |
222f1806 LC |
1830 | if (pkt_dev == NULL) |
1831 | break; /* success */ | |
95ed63f7 | 1832 | |
6146e6a4 | 1833 | mutex_unlock(&pktgen_thread_lock); |
25c4e53a SH |
1834 | pr_debug("pktgen: pktgen_mark_device waiting for %s " |
1835 | "to disappear....\n", ifname); | |
95ed63f7 | 1836 | schedule_timeout_interruptible(msecs_to_jiffies(msec_per_try)); |
6146e6a4 | 1837 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 AK |
1838 | |
1839 | if (++i >= max_tries) { | |
25a8b254 DM |
1840 | printk(KERN_ERR "pktgen_mark_device: timed out after " |
1841 | "waiting %d msec for device %s to be removed\n", | |
222f1806 | 1842 | msec_per_try * i, ifname); |
95ed63f7 AK |
1843 | break; |
1844 | } | |
1845 | ||
1846 | } | |
1847 | ||
6146e6a4 | 1848 | mutex_unlock(&pktgen_thread_lock); |
39df232f | 1849 | } |
95ed63f7 | 1850 | |
39df232f SH |
1851 | static void pktgen_change_name(struct net_device *dev) |
1852 | { | |
1853 | struct pktgen_thread *t; | |
1854 | ||
1855 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1856 | struct pktgen_dev *pkt_dev; | |
1857 | ||
1858 | list_for_each_entry(pkt_dev, &t->if_list, list) { | |
1859 | if (pkt_dev->odev != dev) | |
1860 | continue; | |
1861 | ||
1862 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1863 | ||
1864 | pkt_dev->entry = create_proc_entry(dev->name, 0600, | |
1865 | pg_proc_dir); | |
1866 | if (!pkt_dev->entry) | |
1867 | printk(KERN_ERR "pktgen: can't move proc " | |
1868 | " entry for '%s'\n", dev->name); | |
1869 | break; | |
1870 | } | |
1871 | } | |
1da177e4 LT |
1872 | } |
1873 | ||
222f1806 LC |
1874 | static int pktgen_device_event(struct notifier_block *unused, |
1875 | unsigned long event, void *ptr) | |
1da177e4 | 1876 | { |
39df232f | 1877 | struct net_device *dev = ptr; |
1da177e4 | 1878 | |
e9dc8653 EB |
1879 | if (dev->nd_net != &init_net) |
1880 | return NOTIFY_DONE; | |
1881 | ||
1da177e4 LT |
1882 | /* It is OK that we do not hold the group lock right now, |
1883 | * as we run under the RTNL lock. | |
1884 | */ | |
1885 | ||
1886 | switch (event) { | |
39df232f SH |
1887 | case NETDEV_CHANGENAME: |
1888 | pktgen_change_name(dev); | |
1da177e4 | 1889 | break; |
222f1806 | 1890 | |
1da177e4 | 1891 | case NETDEV_UNREGISTER: |
222f1806 | 1892 | pktgen_mark_device(dev->name); |
1da177e4 | 1893 | break; |
3ff50b79 | 1894 | } |
1da177e4 LT |
1895 | |
1896 | return NOTIFY_DONE; | |
1897 | } | |
1898 | ||
1899 | /* Associate pktgen_dev with a device. */ | |
1900 | ||
39df232f | 1901 | static int pktgen_setup_dev(struct pktgen_dev *pkt_dev, const char *ifname) |
222f1806 | 1902 | { |
1da177e4 | 1903 | struct net_device *odev; |
39df232f | 1904 | int err; |
1da177e4 LT |
1905 | |
1906 | /* Clean old setups */ | |
1da177e4 LT |
1907 | if (pkt_dev->odev) { |
1908 | dev_put(pkt_dev->odev); | |
222f1806 LC |
1909 | pkt_dev->odev = NULL; |
1910 | } | |
1da177e4 | 1911 | |
881d966b | 1912 | odev = dev_get_by_name(&init_net, ifname); |
1da177e4 | 1913 | if (!odev) { |
25a8b254 | 1914 | printk(KERN_ERR "pktgen: no such netdevice: \"%s\"\n", ifname); |
39df232f | 1915 | return -ENODEV; |
1da177e4 | 1916 | } |
39df232f | 1917 | |
1da177e4 | 1918 | if (odev->type != ARPHRD_ETHER) { |
25a8b254 | 1919 | printk(KERN_ERR "pktgen: not an ethernet device: \"%s\"\n", ifname); |
39df232f SH |
1920 | err = -EINVAL; |
1921 | } else if (!netif_running(odev)) { | |
25a8b254 | 1922 | printk(KERN_ERR "pktgen: device is down: \"%s\"\n", ifname); |
39df232f SH |
1923 | err = -ENETDOWN; |
1924 | } else { | |
1925 | pkt_dev->odev = odev; | |
1926 | return 0; | |
1da177e4 | 1927 | } |
1da177e4 | 1928 | |
1da177e4 | 1929 | dev_put(odev); |
39df232f | 1930 | return err; |
1da177e4 LT |
1931 | } |
1932 | ||
1933 | /* Read pkt_dev from the interface and set up internal pktgen_dev | |
1934 | * structure to have the right information to create/send packets | |
1935 | */ | |
1936 | static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) | |
1937 | { | |
222f1806 | 1938 | if (!pkt_dev->odev) { |
25a8b254 DM |
1939 | printk(KERN_ERR "pktgen: ERROR: pkt_dev->odev == NULL in " |
1940 | "setup_inject.\n"); | |
222f1806 LC |
1941 | sprintf(pkt_dev->result, |
1942 | "ERROR: pkt_dev->odev == NULL in setup_inject.\n"); | |
1943 | return; | |
1944 | } | |
1945 | ||
1946 | /* Default to the interface's mac if not explicitly set. */ | |
1da177e4 | 1947 | |
f404e9a6 | 1948 | if (is_zero_ether_addr(pkt_dev->src_mac)) |
222f1806 | 1949 | memcpy(&(pkt_dev->hh[6]), pkt_dev->odev->dev_addr, ETH_ALEN); |
1da177e4 | 1950 | |
222f1806 | 1951 | /* Set up Dest MAC */ |
f404e9a6 | 1952 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); |
1da177e4 | 1953 | |
222f1806 LC |
1954 | /* Set up pkt size */ |
1955 | pkt_dev->cur_pkt_size = pkt_dev->min_pkt_size; | |
1956 | ||
1957 | if (pkt_dev->flags & F_IPV6) { | |
1da177e4 | 1958 | /* |
4ec93edb | 1959 | * Skip this automatic address setting until locks or functions |
1da177e4 LT |
1960 | * gets exported |
1961 | */ | |
1962 | ||
1963 | #ifdef NOTNOW | |
222f1806 | 1964 | int i, set = 0, err = 1; |
1da177e4 LT |
1965 | struct inet6_dev *idev; |
1966 | ||
222f1806 LC |
1967 | for (i = 0; i < IN6_ADDR_HSIZE; i++) |
1968 | if (pkt_dev->cur_in6_saddr.s6_addr[i]) { | |
1da177e4 LT |
1969 | set = 1; |
1970 | break; | |
1971 | } | |
1972 | ||
222f1806 LC |
1973 | if (!set) { |
1974 | ||
1da177e4 LT |
1975 | /* |
1976 | * Use linklevel address if unconfigured. | |
1977 | * | |
1978 | * use ipv6_get_lladdr if/when it's get exported | |
1979 | */ | |
1980 | ||
8814c4b5 | 1981 | rcu_read_lock(); |
1da177e4 LT |
1982 | if ((idev = __in6_dev_get(pkt_dev->odev)) != NULL) { |
1983 | struct inet6_ifaddr *ifp; | |
1984 | ||
1985 | read_lock_bh(&idev->lock); | |
222f1806 LC |
1986 | for (ifp = idev->addr_list; ifp; |
1987 | ifp = ifp->if_next) { | |
1988 | if (ifp->scope == IFA_LINK | |
1989 | && !(ifp-> | |
1990 | flags & IFA_F_TENTATIVE)) { | |
1991 | ipv6_addr_copy(&pkt_dev-> | |
1992 | cur_in6_saddr, | |
1993 | &ifp->addr); | |
1da177e4 LT |
1994 | err = 0; |
1995 | break; | |
1996 | } | |
1997 | } | |
1998 | read_unlock_bh(&idev->lock); | |
1999 | } | |
8814c4b5 | 2000 | rcu_read_unlock(); |
222f1806 | 2001 | if (err) |
25a8b254 DM |
2002 | printk(KERN_ERR "pktgen: ERROR: IPv6 link " |
2003 | "address not availble.\n"); | |
1da177e4 LT |
2004 | } |
2005 | #endif | |
222f1806 | 2006 | } else { |
1da177e4 LT |
2007 | pkt_dev->saddr_min = 0; |
2008 | pkt_dev->saddr_max = 0; | |
2009 | if (strlen(pkt_dev->src_min) == 0) { | |
222f1806 LC |
2010 | |
2011 | struct in_device *in_dev; | |
1da177e4 LT |
2012 | |
2013 | rcu_read_lock(); | |
e5ed6399 | 2014 | in_dev = __in_dev_get_rcu(pkt_dev->odev); |
1da177e4 LT |
2015 | if (in_dev) { |
2016 | if (in_dev->ifa_list) { | |
222f1806 LC |
2017 | pkt_dev->saddr_min = |
2018 | in_dev->ifa_list->ifa_address; | |
1da177e4 LT |
2019 | pkt_dev->saddr_max = pkt_dev->saddr_min; |
2020 | } | |
1da177e4 LT |
2021 | } |
2022 | rcu_read_unlock(); | |
222f1806 | 2023 | } else { |
1da177e4 LT |
2024 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); |
2025 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
2026 | } | |
2027 | ||
2028 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
2029 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
2030 | } | |
222f1806 LC |
2031 | /* Initialize current values. */ |
2032 | pkt_dev->cur_dst_mac_offset = 0; | |
2033 | pkt_dev->cur_src_mac_offset = 0; | |
2034 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
2035 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
2036 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; | |
2037 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
1da177e4 LT |
2038 | pkt_dev->nflows = 0; |
2039 | } | |
2040 | ||
2041 | static void spin(struct pktgen_dev *pkt_dev, __u64 spin_until_us) | |
2042 | { | |
2043 | __u64 start; | |
2044 | __u64 now; | |
2045 | ||
2046 | start = now = getCurUs(); | |
2047 | printk(KERN_INFO "sleeping for %d\n", (int)(spin_until_us - now)); | |
2048 | while (now < spin_until_us) { | |
b4099fab | 2049 | /* TODO: optimize sleeping behavior */ |
222f1806 | 2050 | if (spin_until_us - now > jiffies_to_usecs(1) + 1) |
121caf57 NA |
2051 | schedule_timeout_interruptible(1); |
2052 | else if (spin_until_us - now > 100) { | |
1da177e4 LT |
2053 | if (!pkt_dev->running) |
2054 | return; | |
2055 | if (need_resched()) | |
2056 | schedule(); | |
2057 | } | |
2058 | ||
2059 | now = getCurUs(); | |
2060 | } | |
2061 | ||
2062 | pkt_dev->idle_acc += now - start; | |
2063 | } | |
2064 | ||
16dab72f JHS |
2065 | static inline void set_pkt_overhead(struct pktgen_dev *pkt_dev) |
2066 | { | |
a553e4a6 | 2067 | pkt_dev->pkt_overhead = 0; |
16dab72f JHS |
2068 | pkt_dev->pkt_overhead += pkt_dev->nr_labels*sizeof(u32); |
2069 | pkt_dev->pkt_overhead += VLAN_TAG_SIZE(pkt_dev); | |
2070 | pkt_dev->pkt_overhead += SVLAN_TAG_SIZE(pkt_dev); | |
2071 | } | |
2072 | ||
007a531b JHS |
2073 | static inline int f_seen(struct pktgen_dev *pkt_dev, int flow) |
2074 | { | |
2075 | ||
2076 | if (pkt_dev->flows[flow].flags & F_INIT) | |
2077 | return 1; | |
2078 | else | |
2079 | return 0; | |
2080 | } | |
2081 | ||
2082 | static inline int f_pick(struct pktgen_dev *pkt_dev) | |
2083 | { | |
2084 | int flow = pkt_dev->curfl; | |
2085 | ||
2086 | if (pkt_dev->flags & F_FLOW_SEQ) { | |
2087 | if (pkt_dev->flows[flow].count >= pkt_dev->lflow) { | |
2088 | /* reset time */ | |
2089 | pkt_dev->flows[flow].count = 0; | |
2090 | pkt_dev->curfl += 1; | |
2091 | if (pkt_dev->curfl >= pkt_dev->cflows) | |
2092 | pkt_dev->curfl = 0; /*reset */ | |
2093 | } | |
2094 | } else { | |
2095 | flow = random32() % pkt_dev->cflows; | |
2096 | ||
2097 | if (pkt_dev->flows[flow].count > pkt_dev->lflow) | |
2098 | pkt_dev->flows[flow].count = 0; | |
2099 | } | |
2100 | ||
2101 | return pkt_dev->curfl; | |
2102 | } | |
2103 | ||
a553e4a6 JHS |
2104 | |
2105 | #ifdef CONFIG_XFRM | |
2106 | /* If there was already an IPSEC SA, we keep it as is, else | |
2107 | * we go look for it ... | |
2108 | */ | |
fea1ab0f | 2109 | static void get_ipsec_sa(struct pktgen_dev *pkt_dev, int flow) |
a553e4a6 JHS |
2110 | { |
2111 | struct xfrm_state *x = pkt_dev->flows[flow].x; | |
2112 | if (!x) { | |
2113 | /*slow path: we dont already have xfrm_state*/ | |
2114 | x = xfrm_stateonly_find((xfrm_address_t *)&pkt_dev->cur_daddr, | |
2115 | (xfrm_address_t *)&pkt_dev->cur_saddr, | |
2116 | AF_INET, | |
2117 | pkt_dev->ipsmode, | |
2118 | pkt_dev->ipsproto, 0); | |
2119 | if (x) { | |
2120 | pkt_dev->flows[flow].x = x; | |
2121 | set_pkt_overhead(pkt_dev); | |
2122 | pkt_dev->pkt_overhead+=x->props.header_len; | |
2123 | } | |
2124 | ||
2125 | } | |
2126 | } | |
2127 | #endif | |
1da177e4 LT |
2128 | /* Increment/randomize headers according to flags and current values |
2129 | * for IP src/dest, UDP src/dst port, MAC-Addr src/dst | |
2130 | */ | |
222f1806 LC |
2131 | static void mod_cur_headers(struct pktgen_dev *pkt_dev) |
2132 | { | |
2133 | __u32 imn; | |
2134 | __u32 imx; | |
2135 | int flow = 0; | |
1da177e4 | 2136 | |
007a531b JHS |
2137 | if (pkt_dev->cflows) |
2138 | flow = f_pick(pkt_dev); | |
1da177e4 LT |
2139 | |
2140 | /* Deal with source MAC */ | |
222f1806 LC |
2141 | if (pkt_dev->src_mac_count > 1) { |
2142 | __u32 mc; | |
2143 | __u32 tmp; | |
2144 | ||
2145 | if (pkt_dev->flags & F_MACSRC_RND) | |
5fa6fc76 | 2146 | mc = random32() % pkt_dev->src_mac_count; |
222f1806 LC |
2147 | else { |
2148 | mc = pkt_dev->cur_src_mac_offset++; | |
2149 | if (pkt_dev->cur_src_mac_offset > | |
2150 | pkt_dev->src_mac_count) | |
2151 | pkt_dev->cur_src_mac_offset = 0; | |
2152 | } | |
2153 | ||
2154 | tmp = pkt_dev->src_mac[5] + (mc & 0xFF); | |
2155 | pkt_dev->hh[11] = tmp; | |
2156 | tmp = (pkt_dev->src_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2157 | pkt_dev->hh[10] = tmp; | |
2158 | tmp = (pkt_dev->src_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2159 | pkt_dev->hh[9] = tmp; | |
2160 | tmp = (pkt_dev->src_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2161 | pkt_dev->hh[8] = tmp; | |
2162 | tmp = (pkt_dev->src_mac[1] + (tmp >> 8)); | |
2163 | pkt_dev->hh[7] = tmp; | |
2164 | } | |
2165 | ||
2166 | /* Deal with Destination MAC */ | |
2167 | if (pkt_dev->dst_mac_count > 1) { | |
2168 | __u32 mc; | |
2169 | __u32 tmp; | |
2170 | ||
2171 | if (pkt_dev->flags & F_MACDST_RND) | |
5fa6fc76 | 2172 | mc = random32() % pkt_dev->dst_mac_count; |
222f1806 LC |
2173 | |
2174 | else { | |
2175 | mc = pkt_dev->cur_dst_mac_offset++; | |
2176 | if (pkt_dev->cur_dst_mac_offset > | |
2177 | pkt_dev->dst_mac_count) { | |
2178 | pkt_dev->cur_dst_mac_offset = 0; | |
2179 | } | |
2180 | } | |
2181 | ||
2182 | tmp = pkt_dev->dst_mac[5] + (mc & 0xFF); | |
2183 | pkt_dev->hh[5] = tmp; | |
2184 | tmp = (pkt_dev->dst_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2185 | pkt_dev->hh[4] = tmp; | |
2186 | tmp = (pkt_dev->dst_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2187 | pkt_dev->hh[3] = tmp; | |
2188 | tmp = (pkt_dev->dst_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2189 | pkt_dev->hh[2] = tmp; | |
2190 | tmp = (pkt_dev->dst_mac[1] + (tmp >> 8)); | |
2191 | pkt_dev->hh[1] = tmp; | |
2192 | } | |
2193 | ||
ca6549af SW |
2194 | if (pkt_dev->flags & F_MPLS_RND) { |
2195 | unsigned i; | |
e71a4783 | 2196 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
2197 | if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM) |
2198 | pkt_dev->labels[i] = MPLS_STACK_BOTTOM | | |
5fa6fc76 | 2199 | ((__force __be32)random32() & |
ca6549af SW |
2200 | htonl(0x000fffff)); |
2201 | } | |
2202 | ||
34954ddc | 2203 | if ((pkt_dev->flags & F_VID_RND) && (pkt_dev->vlan_id != 0xffff)) { |
5fa6fc76 | 2204 | pkt_dev->vlan_id = random32() & (4096-1); |
34954ddc FF |
2205 | } |
2206 | ||
2207 | if ((pkt_dev->flags & F_SVID_RND) && (pkt_dev->svlan_id != 0xffff)) { | |
5fa6fc76 | 2208 | pkt_dev->svlan_id = random32() & (4096 - 1); |
34954ddc FF |
2209 | } |
2210 | ||
222f1806 LC |
2211 | if (pkt_dev->udp_src_min < pkt_dev->udp_src_max) { |
2212 | if (pkt_dev->flags & F_UDPSRC_RND) | |
5fa6fc76 SH |
2213 | pkt_dev->cur_udp_src = random32() % |
2214 | (pkt_dev->udp_src_max - pkt_dev->udp_src_min) | |
2215 | + pkt_dev->udp_src_min; | |
222f1806 LC |
2216 | |
2217 | else { | |
1da177e4 LT |
2218 | pkt_dev->cur_udp_src++; |
2219 | if (pkt_dev->cur_udp_src >= pkt_dev->udp_src_max) | |
2220 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
222f1806 LC |
2221 | } |
2222 | } | |
2223 | ||
2224 | if (pkt_dev->udp_dst_min < pkt_dev->udp_dst_max) { | |
2225 | if (pkt_dev->flags & F_UDPDST_RND) { | |
5fa6fc76 SH |
2226 | pkt_dev->cur_udp_dst = random32() % |
2227 | (pkt_dev->udp_dst_max - pkt_dev->udp_dst_min) | |
2228 | + pkt_dev->udp_dst_min; | |
222f1806 | 2229 | } else { |
1da177e4 | 2230 | pkt_dev->cur_udp_dst++; |
222f1806 | 2231 | if (pkt_dev->cur_udp_dst >= pkt_dev->udp_dst_max) |
1da177e4 | 2232 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; |
222f1806 LC |
2233 | } |
2234 | } | |
1da177e4 LT |
2235 | |
2236 | if (!(pkt_dev->flags & F_IPV6)) { | |
2237 | ||
222f1806 LC |
2238 | if ((imn = ntohl(pkt_dev->saddr_min)) < (imx = |
2239 | ntohl(pkt_dev-> | |
2240 | saddr_max))) { | |
1da177e4 | 2241 | __u32 t; |
222f1806 | 2242 | if (pkt_dev->flags & F_IPSRC_RND) |
5fa6fc76 | 2243 | t = random32() % (imx - imn) + imn; |
1da177e4 LT |
2244 | else { |
2245 | t = ntohl(pkt_dev->cur_saddr); | |
2246 | t++; | |
2247 | if (t > imx) { | |
2248 | t = imn; | |
2249 | } | |
2250 | } | |
2251 | pkt_dev->cur_saddr = htonl(t); | |
2252 | } | |
222f1806 | 2253 | |
007a531b | 2254 | if (pkt_dev->cflows && f_seen(pkt_dev, flow)) { |
1da177e4 LT |
2255 | pkt_dev->cur_daddr = pkt_dev->flows[flow].cur_daddr; |
2256 | } else { | |
252e3346 AV |
2257 | imn = ntohl(pkt_dev->daddr_min); |
2258 | imx = ntohl(pkt_dev->daddr_max); | |
2259 | if (imn < imx) { | |
1da177e4 | 2260 | __u32 t; |
252e3346 | 2261 | __be32 s; |
1da177e4 LT |
2262 | if (pkt_dev->flags & F_IPDST_RND) { |
2263 | ||
5fa6fc76 | 2264 | t = random32() % (imx - imn) + imn; |
252e3346 | 2265 | s = htonl(t); |
1da177e4 | 2266 | |
21cf2253 JP |
2267 | while (ipv4_is_loopback(s) || |
2268 | ipv4_is_multicast(s) || | |
2269 | ipv4_is_badclass(s) || | |
2270 | ipv4_is_zeronet(s) || | |
2271 | ipv4_is_local_multicast(s)) { | |
5fa6fc76 | 2272 | t = random32() % (imx - imn) + imn; |
252e3346 | 2273 | s = htonl(t); |
1da177e4 | 2274 | } |
252e3346 AV |
2275 | pkt_dev->cur_daddr = s; |
2276 | } else { | |
1da177e4 LT |
2277 | t = ntohl(pkt_dev->cur_daddr); |
2278 | t++; | |
2279 | if (t > imx) { | |
2280 | t = imn; | |
2281 | } | |
2282 | pkt_dev->cur_daddr = htonl(t); | |
2283 | } | |
2284 | } | |
222f1806 | 2285 | if (pkt_dev->cflows) { |
007a531b | 2286 | pkt_dev->flows[flow].flags |= F_INIT; |
222f1806 LC |
2287 | pkt_dev->flows[flow].cur_daddr = |
2288 | pkt_dev->cur_daddr; | |
a553e4a6 JHS |
2289 | #ifdef CONFIG_XFRM |
2290 | if (pkt_dev->flags & F_IPSEC_ON) | |
2291 | get_ipsec_sa(pkt_dev, flow); | |
2292 | #endif | |
1da177e4 LT |
2293 | pkt_dev->nflows++; |
2294 | } | |
2295 | } | |
222f1806 LC |
2296 | } else { /* IPV6 * */ |
2297 | ||
2298 | if (pkt_dev->min_in6_daddr.s6_addr32[0] == 0 && | |
2299 | pkt_dev->min_in6_daddr.s6_addr32[1] == 0 && | |
2300 | pkt_dev->min_in6_daddr.s6_addr32[2] == 0 && | |
2301 | pkt_dev->min_in6_daddr.s6_addr32[3] == 0) ; | |
1da177e4 LT |
2302 | else { |
2303 | int i; | |
2304 | ||
2305 | /* Only random destinations yet */ | |
2306 | ||
222f1806 | 2307 | for (i = 0; i < 4; i++) { |
1da177e4 | 2308 | pkt_dev->cur_in6_daddr.s6_addr32[i] = |
5fa6fc76 | 2309 | (((__force __be32)random32() | |
222f1806 LC |
2310 | pkt_dev->min_in6_daddr.s6_addr32[i]) & |
2311 | pkt_dev->max_in6_daddr.s6_addr32[i]); | |
1da177e4 | 2312 | } |
222f1806 | 2313 | } |
1da177e4 LT |
2314 | } |
2315 | ||
222f1806 LC |
2316 | if (pkt_dev->min_pkt_size < pkt_dev->max_pkt_size) { |
2317 | __u32 t; | |
2318 | if (pkt_dev->flags & F_TXSIZE_RND) { | |
5fa6fc76 SH |
2319 | t = random32() % |
2320 | (pkt_dev->max_pkt_size - pkt_dev->min_pkt_size) | |
2321 | + pkt_dev->min_pkt_size; | |
222f1806 | 2322 | } else { |
1da177e4 | 2323 | t = pkt_dev->cur_pkt_size + 1; |
222f1806 | 2324 | if (t > pkt_dev->max_pkt_size) |
1da177e4 | 2325 | t = pkt_dev->min_pkt_size; |
222f1806 LC |
2326 | } |
2327 | pkt_dev->cur_pkt_size = t; | |
2328 | } | |
1da177e4 | 2329 | |
45b270f8 RO |
2330 | if (pkt_dev->queue_map_min < pkt_dev->queue_map_max) { |
2331 | __u16 t; | |
2332 | if (pkt_dev->flags & F_QUEUE_MAP_RND) { | |
2333 | t = random32() % | |
2334 | (pkt_dev->queue_map_max - pkt_dev->queue_map_min + 1) | |
2335 | + pkt_dev->queue_map_min; | |
2336 | } else { | |
2337 | t = pkt_dev->cur_queue_map + 1; | |
2338 | if (t > pkt_dev->queue_map_max) | |
2339 | t = pkt_dev->queue_map_min; | |
2340 | } | |
2341 | pkt_dev->cur_queue_map = t; | |
2342 | } | |
2343 | ||
1da177e4 LT |
2344 | pkt_dev->flows[flow].count++; |
2345 | } | |
2346 | ||
a553e4a6 JHS |
2347 | |
2348 | #ifdef CONFIG_XFRM | |
2349 | static int pktgen_output_ipsec(struct sk_buff *skb, struct pktgen_dev *pkt_dev) | |
2350 | { | |
2351 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2352 | int err = 0; | |
2353 | struct iphdr *iph; | |
2354 | ||
2355 | if (!x) | |
2356 | return 0; | |
2357 | /* XXX: we dont support tunnel mode for now until | |
2358 | * we resolve the dst issue */ | |
2359 | if (x->props.mode != XFRM_MODE_TRANSPORT) | |
2360 | return 0; | |
2361 | ||
2362 | spin_lock(&x->lock); | |
2363 | iph = ip_hdr(skb); | |
2364 | ||
13996378 | 2365 | err = x->outer_mode->output(x, skb); |
a553e4a6 JHS |
2366 | if (err) |
2367 | goto error; | |
2368 | err = x->type->output(x, skb); | |
2369 | if (err) | |
2370 | goto error; | |
2371 | ||
2372 | x->curlft.bytes +=skb->len; | |
2373 | x->curlft.packets++; | |
a553e4a6 JHS |
2374 | error: |
2375 | spin_unlock(&x->lock); | |
2376 | return err; | |
2377 | } | |
2378 | ||
2379 | static inline void free_SAs(struct pktgen_dev *pkt_dev) | |
2380 | { | |
2381 | if (pkt_dev->cflows) { | |
2382 | /* let go of the SAs if we have them */ | |
2383 | int i = 0; | |
2384 | for (; i < pkt_dev->nflows; i++){ | |
2385 | struct xfrm_state *x = pkt_dev->flows[i].x; | |
2386 | if (x) { | |
2387 | xfrm_state_put(x); | |
2388 | pkt_dev->flows[i].x = NULL; | |
2389 | } | |
2390 | } | |
2391 | } | |
2392 | } | |
2393 | ||
2394 | static inline int process_ipsec(struct pktgen_dev *pkt_dev, | |
2395 | struct sk_buff *skb, __be16 protocol) | |
2396 | { | |
2397 | if (pkt_dev->flags & F_IPSEC_ON) { | |
2398 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2399 | int nhead = 0; | |
2400 | if (x) { | |
2401 | int ret; | |
2402 | __u8 *eth; | |
2403 | nhead = x->props.header_len - skb_headroom(skb); | |
2404 | if (nhead >0) { | |
2405 | ret = pskb_expand_head(skb, nhead, 0, GFP_ATOMIC); | |
2406 | if (ret < 0) { | |
25a8b254 DM |
2407 | printk(KERN_ERR "Error expanding " |
2408 | "ipsec packet %d\n",ret); | |
a553e4a6 JHS |
2409 | return 0; |
2410 | } | |
2411 | } | |
2412 | ||
2413 | /* ipsec is not expecting ll header */ | |
2414 | skb_pull(skb, ETH_HLEN); | |
2415 | ret = pktgen_output_ipsec(skb, pkt_dev); | |
2416 | if (ret) { | |
25a8b254 DM |
2417 | printk(KERN_ERR "Error creating ipsec " |
2418 | "packet %d\n",ret); | |
a553e4a6 JHS |
2419 | kfree_skb(skb); |
2420 | return 0; | |
2421 | } | |
2422 | /* restore ll */ | |
2423 | eth = (__u8 *) skb_push(skb, ETH_HLEN); | |
2424 | memcpy(eth, pkt_dev->hh, 12); | |
2425 | *(u16 *) & eth[12] = protocol; | |
2426 | } | |
2427 | } | |
2428 | return 1; | |
2429 | } | |
2430 | #endif | |
2431 | ||
ca6549af SW |
2432 | static void mpls_push(__be32 *mpls, struct pktgen_dev *pkt_dev) |
2433 | { | |
2434 | unsigned i; | |
e71a4783 | 2435 | for (i = 0; i < pkt_dev->nr_labels; i++) { |
ca6549af SW |
2436 | *mpls++ = pkt_dev->labels[i] & ~MPLS_STACK_BOTTOM; |
2437 | } | |
2438 | mpls--; | |
2439 | *mpls |= MPLS_STACK_BOTTOM; | |
2440 | } | |
2441 | ||
0f37c605 AV |
2442 | static inline __be16 build_tci(unsigned int id, unsigned int cfi, |
2443 | unsigned int prio) | |
2444 | { | |
2445 | return htons(id | (cfi << 12) | (prio << 13)); | |
2446 | } | |
2447 | ||
222f1806 LC |
2448 | static struct sk_buff *fill_packet_ipv4(struct net_device *odev, |
2449 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2450 | { |
2451 | struct sk_buff *skb = NULL; | |
2452 | __u8 *eth; | |
2453 | struct udphdr *udph; | |
2454 | int datalen, iplen; | |
2455 | struct iphdr *iph; | |
222f1806 | 2456 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2457 | __be16 protocol = htons(ETH_P_IP); |
ca6549af | 2458 | __be32 *mpls; |
34954ddc FF |
2459 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2460 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2461 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2462 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
2463 | ||
ca6549af SW |
2464 | |
2465 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2466 | protocol = htons(ETH_P_MPLS_UC); |
222f1806 | 2467 | |
34954ddc | 2468 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2469 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2470 | |
64053bee RO |
2471 | /* Update any of the values, used when we're incrementing various |
2472 | * fields. | |
2473 | */ | |
2474 | mod_cur_headers(pkt_dev); | |
2475 | ||
7ac5459e | 2476 | datalen = (odev->hard_header_len + 16) & ~0xf; |
ca6549af | 2477 | skb = alloc_skb(pkt_dev->cur_pkt_size + 64 + datalen + |
16dab72f | 2478 | pkt_dev->pkt_overhead, GFP_ATOMIC); |
1da177e4 LT |
2479 | if (!skb) { |
2480 | sprintf(pkt_dev->result, "No memory"); | |
2481 | return NULL; | |
2482 | } | |
2483 | ||
7ac5459e | 2484 | skb_reserve(skb, datalen); |
1da177e4 LT |
2485 | |
2486 | /* Reserve for ethernet and IP header */ | |
2487 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2488 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2489 | if (pkt_dev->nr_labels) | |
2490 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2491 | |
2492 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2493 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2494 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2495 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2496 | pkt_dev->svlan_cfi, | |
2497 | pkt_dev->svlan_p); | |
34954ddc | 2498 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2499 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2500 | } |
2501 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2502 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2503 | pkt_dev->vlan_cfi, | |
2504 | pkt_dev->vlan_p); | |
34954ddc | 2505 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2506 | *vlan_encapsulated_proto = htons(ETH_P_IP); |
34954ddc FF |
2507 | } |
2508 | ||
27a884dc | 2509 | skb->network_header = skb->tail; |
b0e380b1 | 2510 | skb->transport_header = skb->network_header + sizeof(struct iphdr); |
ddc7b8e3 | 2511 | skb_put(skb, sizeof(struct iphdr) + sizeof(struct udphdr)); |
dfa40911 | 2512 | skb_set_queue_mapping(skb, pkt_dev->cur_queue_map); |
ddc7b8e3 ACM |
2513 | iph = ip_hdr(skb); |
2514 | udph = udp_hdr(skb); | |
1da177e4 | 2515 | |
1da177e4 | 2516 | memcpy(eth, pkt_dev->hh, 12); |
252e3346 | 2517 | *(__be16 *) & eth[12] = protocol; |
1da177e4 | 2518 | |
ca6549af SW |
2519 | /* Eth + IPh + UDPh + mpls */ |
2520 | datalen = pkt_dev->cur_pkt_size - 14 - 20 - 8 - | |
16dab72f | 2521 | pkt_dev->pkt_overhead; |
222f1806 | 2522 | if (datalen < sizeof(struct pktgen_hdr)) |
1da177e4 | 2523 | datalen = sizeof(struct pktgen_hdr); |
222f1806 | 2524 | |
1da177e4 LT |
2525 | udph->source = htons(pkt_dev->cur_udp_src); |
2526 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2527 | udph->len = htons(datalen + 8); /* DATA + udphdr */ |
2528 | udph->check = 0; /* No checksum */ | |
1da177e4 LT |
2529 | |
2530 | iph->ihl = 5; | |
2531 | iph->version = 4; | |
2532 | iph->ttl = 32; | |
1ca7768c | 2533 | iph->tos = pkt_dev->tos; |
222f1806 | 2534 | iph->protocol = IPPROTO_UDP; /* UDP */ |
1da177e4 LT |
2535 | iph->saddr = pkt_dev->cur_saddr; |
2536 | iph->daddr = pkt_dev->cur_daddr; | |
2537 | iph->frag_off = 0; | |
2538 | iplen = 20 + 8 + datalen; | |
2539 | iph->tot_len = htons(iplen); | |
2540 | iph->check = 0; | |
222f1806 | 2541 | iph->check = ip_fast_csum((void *)iph, iph->ihl); |
ca6549af | 2542 | skb->protocol = protocol; |
b0e380b1 | 2543 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2544 | pkt_dev->pkt_overhead); |
1da177e4 LT |
2545 | skb->dev = odev; |
2546 | skb->pkt_type = PACKET_HOST; | |
2547 | ||
222f1806 LC |
2548 | if (pkt_dev->nfrags <= 0) |
2549 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); | |
1da177e4 LT |
2550 | else { |
2551 | int frags = pkt_dev->nfrags; | |
2552 | int i; | |
2553 | ||
222f1806 LC |
2554 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
2555 | ||
1da177e4 LT |
2556 | if (frags > MAX_SKB_FRAGS) |
2557 | frags = MAX_SKB_FRAGS; | |
222f1806 LC |
2558 | if (datalen > frags * PAGE_SIZE) { |
2559 | skb_put(skb, datalen - frags * PAGE_SIZE); | |
2560 | datalen = frags * PAGE_SIZE; | |
1da177e4 LT |
2561 | } |
2562 | ||
2563 | i = 0; | |
2564 | while (datalen > 0) { | |
2565 | struct page *page = alloc_pages(GFP_KERNEL, 0); | |
2566 | skb_shinfo(skb)->frags[i].page = page; | |
2567 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
2568 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 2569 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
2570 | datalen -= skb_shinfo(skb)->frags[i].size; |
2571 | skb->len += skb_shinfo(skb)->frags[i].size; | |
2572 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
2573 | i++; | |
2574 | skb_shinfo(skb)->nr_frags = i; | |
2575 | } | |
2576 | ||
2577 | while (i < frags) { | |
2578 | int rem; | |
2579 | ||
2580 | if (i == 0) | |
2581 | break; | |
2582 | ||
2583 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
2584 | if (rem == 0) | |
2585 | break; | |
2586 | ||
2587 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
2588 | ||
222f1806 LC |
2589 | skb_shinfo(skb)->frags[i] = |
2590 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 2591 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
2592 | skb_shinfo(skb)->frags[i].page = |
2593 | skb_shinfo(skb)->frags[i - 1].page; | |
2594 | skb_shinfo(skb)->frags[i].page_offset += | |
2595 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
2596 | skb_shinfo(skb)->frags[i].size = rem; |
2597 | i++; | |
2598 | skb_shinfo(skb)->nr_frags = i; | |
2599 | } | |
2600 | } | |
2601 | ||
222f1806 LC |
2602 | /* Stamp the time, and sequence number, convert them to network byte order */ |
2603 | ||
2604 | if (pgh) { | |
2605 | struct timeval timestamp; | |
2606 | ||
2607 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
2608 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
2609 | ||
2610 | do_gettimeofday(×tamp); | |
2611 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
2612 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
2613 | } | |
1da177e4 | 2614 | |
a553e4a6 JHS |
2615 | #ifdef CONFIG_XFRM |
2616 | if (!process_ipsec(pkt_dev, skb, protocol)) | |
2617 | return NULL; | |
2618 | #endif | |
2619 | ||
1da177e4 LT |
2620 | return skb; |
2621 | } | |
2622 | ||
2623 | /* | |
4ec93edb | 2624 | * scan_ip6, fmt_ip taken from dietlibc-0.21 |
1da177e4 LT |
2625 | * Author Felix von Leitner <felix-dietlibc@fefe.de> |
2626 | * | |
4ec93edb | 2627 | * Slightly modified for kernel. |
1da177e4 LT |
2628 | * Should be candidate for net/ipv4/utils.c |
2629 | * --ro | |
2630 | */ | |
2631 | ||
222f1806 | 2632 | static unsigned int scan_ip6(const char *s, char ip[16]) |
1da177e4 LT |
2633 | { |
2634 | unsigned int i; | |
222f1806 | 2635 | unsigned int len = 0; |
1da177e4 LT |
2636 | unsigned long u; |
2637 | char suffix[16]; | |
222f1806 LC |
2638 | unsigned int prefixlen = 0; |
2639 | unsigned int suffixlen = 0; | |
252e3346 | 2640 | __be32 tmp; |
cfcabdcc | 2641 | char *pos; |
1da177e4 | 2642 | |
222f1806 LC |
2643 | for (i = 0; i < 16; i++) |
2644 | ip[i] = 0; | |
1da177e4 LT |
2645 | |
2646 | for (;;) { | |
2647 | if (*s == ':') { | |
2648 | len++; | |
222f1806 LC |
2649 | if (s[1] == ':') { /* Found "::", skip to part 2 */ |
2650 | s += 2; | |
1da177e4 LT |
2651 | len++; |
2652 | break; | |
2653 | } | |
2654 | s++; | |
2655 | } | |
1da177e4 | 2656 | |
cfcabdcc SH |
2657 | u = simple_strtoul(s, &pos, 16); |
2658 | i = pos - s; | |
222f1806 LC |
2659 | if (!i) |
2660 | return 0; | |
2661 | if (prefixlen == 12 && s[i] == '.') { | |
1da177e4 LT |
2662 | |
2663 | /* the last 4 bytes may be written as IPv4 address */ | |
2664 | ||
2665 | tmp = in_aton(s); | |
222f1806 LC |
2666 | memcpy((struct in_addr *)(ip + 12), &tmp, sizeof(tmp)); |
2667 | return i + len; | |
1da177e4 LT |
2668 | } |
2669 | ip[prefixlen++] = (u >> 8); | |
2670 | ip[prefixlen++] = (u & 255); | |
222f1806 LC |
2671 | s += i; |
2672 | len += i; | |
2673 | if (prefixlen == 16) | |
1da177e4 LT |
2674 | return len; |
2675 | } | |
2676 | ||
2677 | /* part 2, after "::" */ | |
2678 | for (;;) { | |
2679 | if (*s == ':') { | |
222f1806 | 2680 | if (suffixlen == 0) |
1da177e4 LT |
2681 | break; |
2682 | s++; | |
2683 | len++; | |
222f1806 | 2684 | } else if (suffixlen != 0) |
1da177e4 | 2685 | break; |
cfcabdcc SH |
2686 | |
2687 | u = simple_strtol(s, &pos, 16); | |
2688 | i = pos - s; | |
1da177e4 | 2689 | if (!i) { |
222f1806 LC |
2690 | if (*s) |
2691 | len--; | |
1da177e4 LT |
2692 | break; |
2693 | } | |
222f1806 | 2694 | if (suffixlen + prefixlen <= 12 && s[i] == '.') { |
1da177e4 | 2695 | tmp = in_aton(s); |
222f1806 LC |
2696 | memcpy((struct in_addr *)(suffix + suffixlen), &tmp, |
2697 | sizeof(tmp)); | |
2698 | suffixlen += 4; | |
2699 | len += strlen(s); | |
1da177e4 LT |
2700 | break; |
2701 | } | |
2702 | suffix[suffixlen++] = (u >> 8); | |
2703 | suffix[suffixlen++] = (u & 255); | |
222f1806 LC |
2704 | s += i; |
2705 | len += i; | |
2706 | if (prefixlen + suffixlen == 16) | |
1da177e4 LT |
2707 | break; |
2708 | } | |
222f1806 LC |
2709 | for (i = 0; i < suffixlen; i++) |
2710 | ip[16 - suffixlen + i] = suffix[i]; | |
1da177e4 LT |
2711 | return len; |
2712 | } | |
2713 | ||
222f1806 LC |
2714 | static char tohex(char hexdigit) |
2715 | { | |
2716 | return hexdigit > 9 ? hexdigit + 'a' - 10 : hexdigit + '0'; | |
1da177e4 LT |
2717 | } |
2718 | ||
222f1806 LC |
2719 | static int fmt_xlong(char *s, unsigned int i) |
2720 | { | |
2721 | char *bak = s; | |
2722 | *s = tohex((i >> 12) & 0xf); | |
2723 | if (s != bak || *s != '0') | |
2724 | ++s; | |
2725 | *s = tohex((i >> 8) & 0xf); | |
2726 | if (s != bak || *s != '0') | |
2727 | ++s; | |
2728 | *s = tohex((i >> 4) & 0xf); | |
2729 | if (s != bak || *s != '0') | |
2730 | ++s; | |
2731 | *s = tohex(i & 0xf); | |
2732 | return s - bak + 1; | |
1da177e4 LT |
2733 | } |
2734 | ||
222f1806 LC |
2735 | static unsigned int fmt_ip6(char *s, const char ip[16]) |
2736 | { | |
1da177e4 LT |
2737 | unsigned int len; |
2738 | unsigned int i; | |
2739 | unsigned int temp; | |
2740 | unsigned int compressing; | |
2741 | int j; | |
2742 | ||
222f1806 LC |
2743 | len = 0; |
2744 | compressing = 0; | |
2745 | for (j = 0; j < 16; j += 2) { | |
1da177e4 LT |
2746 | |
2747 | #ifdef V4MAPPEDPREFIX | |
222f1806 LC |
2748 | if (j == 12 && !memcmp(ip, V4mappedprefix, 12)) { |
2749 | inet_ntoa_r(*(struct in_addr *)(ip + 12), s); | |
2750 | temp = strlen(s); | |
2751 | return len + temp; | |
1da177e4 LT |
2752 | } |
2753 | #endif | |
222f1806 LC |
2754 | temp = ((unsigned long)(unsigned char)ip[j] << 8) + |
2755 | (unsigned long)(unsigned char)ip[j + 1]; | |
1da177e4 LT |
2756 | if (temp == 0) { |
2757 | if (!compressing) { | |
222f1806 LC |
2758 | compressing = 1; |
2759 | if (j == 0) { | |
2760 | *s++ = ':'; | |
2761 | ++len; | |
1da177e4 LT |
2762 | } |
2763 | } | |
2764 | } else { | |
2765 | if (compressing) { | |
222f1806 LC |
2766 | compressing = 0; |
2767 | *s++ = ':'; | |
2768 | ++len; | |
1da177e4 | 2769 | } |
222f1806 LC |
2770 | i = fmt_xlong(s, temp); |
2771 | len += i; | |
2772 | s += i; | |
2773 | if (j < 14) { | |
1da177e4 LT |
2774 | *s++ = ':'; |
2775 | ++len; | |
2776 | } | |
2777 | } | |
2778 | } | |
2779 | if (compressing) { | |
222f1806 LC |
2780 | *s++ = ':'; |
2781 | ++len; | |
1da177e4 | 2782 | } |
222f1806 | 2783 | *s = 0; |
1da177e4 LT |
2784 | return len; |
2785 | } | |
2786 | ||
222f1806 LC |
2787 | static struct sk_buff *fill_packet_ipv6(struct net_device *odev, |
2788 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2789 | { |
2790 | struct sk_buff *skb = NULL; | |
2791 | __u8 *eth; | |
2792 | struct udphdr *udph; | |
2793 | int datalen; | |
2794 | struct ipv6hdr *iph; | |
222f1806 | 2795 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2796 | __be16 protocol = htons(ETH_P_IPV6); |
ca6549af | 2797 | __be32 *mpls; |
34954ddc FF |
2798 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2799 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2800 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2801 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
ca6549af SW |
2802 | |
2803 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2804 | protocol = htons(ETH_P_MPLS_UC); |
64053bee | 2805 | |
34954ddc | 2806 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2807 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2808 | |
64053bee RO |
2809 | /* Update any of the values, used when we're incrementing various |
2810 | * fields. | |
2811 | */ | |
2812 | mod_cur_headers(pkt_dev); | |
2813 | ||
ca6549af | 2814 | skb = alloc_skb(pkt_dev->cur_pkt_size + 64 + 16 + |
16dab72f | 2815 | pkt_dev->pkt_overhead, GFP_ATOMIC); |
1da177e4 LT |
2816 | if (!skb) { |
2817 | sprintf(pkt_dev->result, "No memory"); | |
2818 | return NULL; | |
2819 | } | |
2820 | ||
2821 | skb_reserve(skb, 16); | |
2822 | ||
2823 | /* Reserve for ethernet and IP header */ | |
2824 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2825 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2826 | if (pkt_dev->nr_labels) | |
2827 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2828 | |
2829 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2830 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2831 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2832 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2833 | pkt_dev->svlan_cfi, | |
2834 | pkt_dev->svlan_p); | |
34954ddc | 2835 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2836 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2837 | } |
2838 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2839 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2840 | pkt_dev->vlan_cfi, | |
2841 | pkt_dev->vlan_p); | |
34954ddc | 2842 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2843 | *vlan_encapsulated_proto = htons(ETH_P_IPV6); |
34954ddc FF |
2844 | } |
2845 | ||
27a884dc | 2846 | skb->network_header = skb->tail; |
b0e380b1 | 2847 | skb->transport_header = skb->network_header + sizeof(struct ipv6hdr); |
ddc7b8e3 | 2848 | skb_put(skb, sizeof(struct ipv6hdr) + sizeof(struct udphdr)); |
dfa40911 | 2849 | skb_set_queue_mapping(skb, pkt_dev->cur_queue_map); |
ddc7b8e3 ACM |
2850 | iph = ipv6_hdr(skb); |
2851 | udph = udp_hdr(skb); | |
1da177e4 | 2852 | |
1da177e4 | 2853 | memcpy(eth, pkt_dev->hh, 12); |
252e3346 | 2854 | *(__be16 *) & eth[12] = protocol; |
64053bee | 2855 | |
ca6549af SW |
2856 | /* Eth + IPh + UDPh + mpls */ |
2857 | datalen = pkt_dev->cur_pkt_size - 14 - | |
2858 | sizeof(struct ipv6hdr) - sizeof(struct udphdr) - | |
16dab72f | 2859 | pkt_dev->pkt_overhead; |
1da177e4 | 2860 | |
222f1806 | 2861 | if (datalen < sizeof(struct pktgen_hdr)) { |
1da177e4 LT |
2862 | datalen = sizeof(struct pktgen_hdr); |
2863 | if (net_ratelimit()) | |
222f1806 LC |
2864 | printk(KERN_INFO "pktgen: increased datalen to %d\n", |
2865 | datalen); | |
1da177e4 LT |
2866 | } |
2867 | ||
2868 | udph->source = htons(pkt_dev->cur_udp_src); | |
2869 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2870 | udph->len = htons(datalen + sizeof(struct udphdr)); |
2871 | udph->check = 0; /* No checksum */ | |
1da177e4 | 2872 | |
d5f1ce9a | 2873 | *(__be32 *) iph = htonl(0x60000000); /* Version + flow */ |
1da177e4 | 2874 | |
1ca7768c FF |
2875 | if (pkt_dev->traffic_class) { |
2876 | /* Version + traffic class + flow (0) */ | |
252e3346 | 2877 | *(__be32 *)iph |= htonl(0x60000000 | (pkt_dev->traffic_class << 20)); |
1ca7768c FF |
2878 | } |
2879 | ||
1da177e4 LT |
2880 | iph->hop_limit = 32; |
2881 | ||
2882 | iph->payload_len = htons(sizeof(struct udphdr) + datalen); | |
2883 | iph->nexthdr = IPPROTO_UDP; | |
2884 | ||
2885 | ipv6_addr_copy(&iph->daddr, &pkt_dev->cur_in6_daddr); | |
2886 | ipv6_addr_copy(&iph->saddr, &pkt_dev->cur_in6_saddr); | |
2887 | ||
b0e380b1 | 2888 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2889 | pkt_dev->pkt_overhead); |
ca6549af | 2890 | skb->protocol = protocol; |
1da177e4 LT |
2891 | skb->dev = odev; |
2892 | skb->pkt_type = PACKET_HOST; | |
2893 | ||
222f1806 LC |
2894 | if (pkt_dev->nfrags <= 0) |
2895 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); | |
1da177e4 LT |
2896 | else { |
2897 | int frags = pkt_dev->nfrags; | |
2898 | int i; | |
2899 | ||
222f1806 LC |
2900 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
2901 | ||
1da177e4 LT |
2902 | if (frags > MAX_SKB_FRAGS) |
2903 | frags = MAX_SKB_FRAGS; | |
222f1806 LC |
2904 | if (datalen > frags * PAGE_SIZE) { |
2905 | skb_put(skb, datalen - frags * PAGE_SIZE); | |
2906 | datalen = frags * PAGE_SIZE; | |
1da177e4 LT |
2907 | } |
2908 | ||
2909 | i = 0; | |
2910 | while (datalen > 0) { | |
2911 | struct page *page = alloc_pages(GFP_KERNEL, 0); | |
2912 | skb_shinfo(skb)->frags[i].page = page; | |
2913 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
2914 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 2915 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
2916 | datalen -= skb_shinfo(skb)->frags[i].size; |
2917 | skb->len += skb_shinfo(skb)->frags[i].size; | |
2918 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
2919 | i++; | |
2920 | skb_shinfo(skb)->nr_frags = i; | |
2921 | } | |
2922 | ||
2923 | while (i < frags) { | |
2924 | int rem; | |
2925 | ||
2926 | if (i == 0) | |
2927 | break; | |
2928 | ||
2929 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
2930 | if (rem == 0) | |
2931 | break; | |
2932 | ||
2933 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
2934 | ||
222f1806 LC |
2935 | skb_shinfo(skb)->frags[i] = |
2936 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 2937 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
2938 | skb_shinfo(skb)->frags[i].page = |
2939 | skb_shinfo(skb)->frags[i - 1].page; | |
2940 | skb_shinfo(skb)->frags[i].page_offset += | |
2941 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
2942 | skb_shinfo(skb)->frags[i].size = rem; |
2943 | i++; | |
2944 | skb_shinfo(skb)->nr_frags = i; | |
2945 | } | |
2946 | } | |
2947 | ||
222f1806 | 2948 | /* Stamp the time, and sequence number, convert them to network byte order */ |
1da177e4 | 2949 | /* should we update cloned packets too ? */ |
222f1806 LC |
2950 | if (pgh) { |
2951 | struct timeval timestamp; | |
2952 | ||
2953 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
2954 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
2955 | ||
2956 | do_gettimeofday(×tamp); | |
2957 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
2958 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
2959 | } | |
34954ddc | 2960 | /* pkt_dev->seq_num++; FF: you really mean this? */ |
222f1806 | 2961 | |
1da177e4 LT |
2962 | return skb; |
2963 | } | |
2964 | ||
222f1806 LC |
2965 | static inline struct sk_buff *fill_packet(struct net_device *odev, |
2966 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 2967 | { |
222f1806 | 2968 | if (pkt_dev->flags & F_IPV6) |
1da177e4 LT |
2969 | return fill_packet_ipv6(odev, pkt_dev); |
2970 | else | |
2971 | return fill_packet_ipv4(odev, pkt_dev); | |
2972 | } | |
2973 | ||
222f1806 | 2974 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev) |
1da177e4 | 2975 | { |
222f1806 LC |
2976 | pkt_dev->seq_num = 1; |
2977 | pkt_dev->idle_acc = 0; | |
1da177e4 | 2978 | pkt_dev->sofar = 0; |
222f1806 LC |
2979 | pkt_dev->tx_bytes = 0; |
2980 | pkt_dev->errors = 0; | |
1da177e4 LT |
2981 | } |
2982 | ||
2983 | /* Set up structure for sending pkts, clear counters */ | |
2984 | ||
2985 | static void pktgen_run(struct pktgen_thread *t) | |
2986 | { | |
c26a8016 | 2987 | struct pktgen_dev *pkt_dev; |
1da177e4 LT |
2988 | int started = 0; |
2989 | ||
25c4e53a | 2990 | pr_debug("pktgen: entering pktgen_run. %p\n", t); |
1da177e4 LT |
2991 | |
2992 | if_lock(t); | |
c26a8016 | 2993 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
1da177e4 LT |
2994 | |
2995 | /* | |
2996 | * setup odev and create initial packet. | |
2997 | */ | |
2998 | pktgen_setup_inject(pkt_dev); | |
2999 | ||
222f1806 | 3000 | if (pkt_dev->odev) { |
1da177e4 | 3001 | pktgen_clear_counters(pkt_dev); |
222f1806 | 3002 | pkt_dev->running = 1; /* Cranke yeself! */ |
1da177e4 LT |
3003 | pkt_dev->skb = NULL; |
3004 | pkt_dev->started_at = getCurUs(); | |
222f1806 | 3005 | pkt_dev->next_tx_us = getCurUs(); /* Transmit immediately */ |
1da177e4 | 3006 | pkt_dev->next_tx_ns = 0; |
16dab72f | 3007 | set_pkt_overhead(pkt_dev); |
222f1806 | 3008 | |
1da177e4 LT |
3009 | strcpy(pkt_dev->result, "Starting"); |
3010 | started++; | |
222f1806 | 3011 | } else |
1da177e4 LT |
3012 | strcpy(pkt_dev->result, "Error starting"); |
3013 | } | |
3014 | if_unlock(t); | |
222f1806 LC |
3015 | if (started) |
3016 | t->control &= ~(T_STOP); | |
1da177e4 LT |
3017 | } |
3018 | ||
3019 | static void pktgen_stop_all_threads_ifs(void) | |
3020 | { | |
cdcdbe0b | 3021 | struct pktgen_thread *t; |
1da177e4 | 3022 | |
25c4e53a | 3023 | pr_debug("pktgen: entering pktgen_stop_all_threads_ifs.\n"); |
1da177e4 | 3024 | |
6146e6a4 | 3025 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3026 | |
3027 | list_for_each_entry(t, &pktgen_threads, th_list) | |
95ed63f7 | 3028 | t->control |= T_STOP; |
cdcdbe0b | 3029 | |
6146e6a4 | 3030 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3031 | } |
3032 | ||
222f1806 | 3033 | static int thread_is_running(struct pktgen_thread *t) |
1da177e4 | 3034 | { |
c26a8016 | 3035 | struct pktgen_dev *pkt_dev; |
222f1806 | 3036 | int res = 0; |
1da177e4 | 3037 | |
c26a8016 LC |
3038 | list_for_each_entry(pkt_dev, &t->if_list, list) |
3039 | if (pkt_dev->running) { | |
1da177e4 LT |
3040 | res = 1; |
3041 | break; | |
3042 | } | |
222f1806 | 3043 | return res; |
1da177e4 LT |
3044 | } |
3045 | ||
222f1806 | 3046 | static int pktgen_wait_thread_run(struct pktgen_thread *t) |
1da177e4 | 3047 | { |
222f1806 | 3048 | if_lock(t); |
1da177e4 | 3049 | |
222f1806 | 3050 | while (thread_is_running(t)) { |
1da177e4 | 3051 | |
222f1806 | 3052 | if_unlock(t); |
1da177e4 | 3053 | |
222f1806 | 3054 | msleep_interruptible(100); |
1da177e4 | 3055 | |
222f1806 LC |
3056 | if (signal_pending(current)) |
3057 | goto signal; | |
3058 | if_lock(t); | |
3059 | } | |
3060 | if_unlock(t); | |
3061 | return 1; | |
3062 | signal: | |
3063 | return 0; | |
1da177e4 LT |
3064 | } |
3065 | ||
3066 | static int pktgen_wait_all_threads_run(void) | |
3067 | { | |
cdcdbe0b | 3068 | struct pktgen_thread *t; |
1da177e4 | 3069 | int sig = 1; |
222f1806 | 3070 | |
6146e6a4 | 3071 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3072 | |
3073 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1da177e4 | 3074 | sig = pktgen_wait_thread_run(t); |
222f1806 LC |
3075 | if (sig == 0) |
3076 | break; | |
1da177e4 | 3077 | } |
cdcdbe0b LC |
3078 | |
3079 | if (sig == 0) | |
3080 | list_for_each_entry(t, &pktgen_threads, th_list) | |
1da177e4 | 3081 | t->control |= (T_STOP); |
cdcdbe0b | 3082 | |
6146e6a4 | 3083 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3084 | return sig; |
3085 | } | |
3086 | ||
3087 | static void pktgen_run_all_threads(void) | |
3088 | { | |
cdcdbe0b | 3089 | struct pktgen_thread *t; |
1da177e4 | 3090 | |
25c4e53a | 3091 | pr_debug("pktgen: entering pktgen_run_all_threads.\n"); |
1da177e4 | 3092 | |
6146e6a4 | 3093 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3094 | |
cdcdbe0b | 3095 | list_for_each_entry(t, &pktgen_threads, th_list) |
1da177e4 | 3096 | t->control |= (T_RUN); |
cdcdbe0b | 3097 | |
6146e6a4 | 3098 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 | 3099 | |
222f1806 LC |
3100 | schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ |
3101 | ||
1da177e4 LT |
3102 | pktgen_wait_all_threads_run(); |
3103 | } | |
3104 | ||
1da177e4 LT |
3105 | static void show_results(struct pktgen_dev *pkt_dev, int nr_frags) |
3106 | { | |
222f1806 LC |
3107 | __u64 total_us, bps, mbps, pps, idle; |
3108 | char *p = pkt_dev->result; | |
3109 | ||
3110 | total_us = pkt_dev->stopped_at - pkt_dev->started_at; | |
3111 | ||
3112 | idle = pkt_dev->idle_acc; | |
3113 | ||
3114 | p += sprintf(p, "OK: %llu(c%llu+d%llu) usec, %llu (%dbyte,%dfrags)\n", | |
3115 | (unsigned long long)total_us, | |
3116 | (unsigned long long)(total_us - idle), | |
3117 | (unsigned long long)idle, | |
3118 | (unsigned long long)pkt_dev->sofar, | |
3119 | pkt_dev->cur_pkt_size, nr_frags); | |
3120 | ||
3121 | pps = pkt_dev->sofar * USEC_PER_SEC; | |
3122 | ||
3123 | while ((total_us >> 32) != 0) { | |
3124 | pps >>= 1; | |
3125 | total_us >>= 1; | |
3126 | } | |
3127 | ||
3128 | do_div(pps, total_us); | |
3129 | ||
3130 | bps = pps * 8 * pkt_dev->cur_pkt_size; | |
3131 | ||
3132 | mbps = bps; | |
3133 | do_div(mbps, 1000000); | |
3134 | p += sprintf(p, " %llupps %lluMb/sec (%llubps) errors: %llu", | |
3135 | (unsigned long long)pps, | |
3136 | (unsigned long long)mbps, | |
3137 | (unsigned long long)bps, | |
3138 | (unsigned long long)pkt_dev->errors); | |
1da177e4 | 3139 | } |
1da177e4 LT |
3140 | |
3141 | /* Set stopped-at timer, remove from running list, do counters & statistics */ | |
3142 | ||
222f1806 | 3143 | static int pktgen_stop_device(struct pktgen_dev *pkt_dev) |
1da177e4 | 3144 | { |
222f1806 | 3145 | int nr_frags = pkt_dev->skb ? skb_shinfo(pkt_dev->skb)->nr_frags : -1; |
95ed63f7 | 3146 | |
222f1806 | 3147 | if (!pkt_dev->running) { |
25a8b254 DM |
3148 | printk(KERN_WARNING "pktgen: interface: %s is already " |
3149 | "stopped\n", pkt_dev->odev->name); | |
222f1806 LC |
3150 | return -EINVAL; |
3151 | } | |
1da177e4 | 3152 | |
222f1806 LC |
3153 | pkt_dev->stopped_at = getCurUs(); |
3154 | pkt_dev->running = 0; | |
1da177e4 | 3155 | |
95ed63f7 | 3156 | show_results(pkt_dev, nr_frags); |
1da177e4 | 3157 | |
222f1806 | 3158 | return 0; |
1da177e4 LT |
3159 | } |
3160 | ||
222f1806 | 3161 | static struct pktgen_dev *next_to_run(struct pktgen_thread *t) |
1da177e4 | 3162 | { |
c26a8016 | 3163 | struct pktgen_dev *pkt_dev, *best = NULL; |
222f1806 | 3164 | |
1da177e4 LT |
3165 | if_lock(t); |
3166 | ||
c26a8016 LC |
3167 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3168 | if (!pkt_dev->running) | |
222f1806 LC |
3169 | continue; |
3170 | if (best == NULL) | |
c26a8016 LC |
3171 | best = pkt_dev; |
3172 | else if (pkt_dev->next_tx_us < best->next_tx_us) | |
3173 | best = pkt_dev; | |
1da177e4 LT |
3174 | } |
3175 | if_unlock(t); | |
222f1806 | 3176 | return best; |
1da177e4 LT |
3177 | } |
3178 | ||
222f1806 LC |
3179 | static void pktgen_stop(struct pktgen_thread *t) |
3180 | { | |
c26a8016 | 3181 | struct pktgen_dev *pkt_dev; |
1da177e4 | 3182 | |
25c4e53a | 3183 | pr_debug("pktgen: entering pktgen_stop\n"); |
1da177e4 | 3184 | |
222f1806 | 3185 | if_lock(t); |
1da177e4 | 3186 | |
c26a8016 LC |
3187 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3188 | pktgen_stop_device(pkt_dev); | |
3189 | if (pkt_dev->skb) | |
3190 | kfree_skb(pkt_dev->skb); | |
95ed63f7 | 3191 | |
c26a8016 | 3192 | pkt_dev->skb = NULL; |
95ed63f7 | 3193 | } |
1da177e4 | 3194 | |
222f1806 | 3195 | if_unlock(t); |
1da177e4 LT |
3196 | } |
3197 | ||
95ed63f7 AK |
3198 | /* |
3199 | * one of our devices needs to be removed - find it | |
3200 | * and remove it | |
3201 | */ | |
3202 | static void pktgen_rem_one_if(struct pktgen_thread *t) | |
3203 | { | |
c26a8016 LC |
3204 | struct list_head *q, *n; |
3205 | struct pktgen_dev *cur; | |
95ed63f7 | 3206 | |
25c4e53a | 3207 | pr_debug("pktgen: entering pktgen_rem_one_if\n"); |
95ed63f7 AK |
3208 | |
3209 | if_lock(t); | |
3210 | ||
c26a8016 LC |
3211 | list_for_each_safe(q, n, &t->if_list) { |
3212 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3213 | |
222f1806 LC |
3214 | if (!cur->removal_mark) |
3215 | continue; | |
95ed63f7 AK |
3216 | |
3217 | if (cur->skb) | |
3218 | kfree_skb(cur->skb); | |
3219 | cur->skb = NULL; | |
3220 | ||
3221 | pktgen_remove_device(t, cur); | |
3222 | ||
3223 | break; | |
3224 | } | |
3225 | ||
3226 | if_unlock(t); | |
3227 | } | |
3228 | ||
222f1806 | 3229 | static void pktgen_rem_all_ifs(struct pktgen_thread *t) |
1da177e4 | 3230 | { |
c26a8016 LC |
3231 | struct list_head *q, *n; |
3232 | struct pktgen_dev *cur; | |
222f1806 LC |
3233 | |
3234 | /* Remove all devices, free mem */ | |
95ed63f7 | 3235 | |
25c4e53a | 3236 | pr_debug("pktgen: entering pktgen_rem_all_ifs\n"); |
222f1806 | 3237 | if_lock(t); |
1da177e4 | 3238 | |
c26a8016 LC |
3239 | list_for_each_safe(q, n, &t->if_list) { |
3240 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 AK |
3241 | |
3242 | if (cur->skb) | |
3243 | kfree_skb(cur->skb); | |
3244 | cur->skb = NULL; | |
3245 | ||
1da177e4 LT |
3246 | pktgen_remove_device(t, cur); |
3247 | } | |
3248 | ||
222f1806 | 3249 | if_unlock(t); |
1da177e4 LT |
3250 | } |
3251 | ||
222f1806 | 3252 | static void pktgen_rem_thread(struct pktgen_thread *t) |
1da177e4 | 3253 | { |
222f1806 | 3254 | /* Remove from the thread list */ |
1da177e4 | 3255 | |
ee74baa7 | 3256 | remove_proc_entry(t->tsk->comm, pg_proc_dir); |
1da177e4 | 3257 | |
6146e6a4 | 3258 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3259 | |
cdcdbe0b LC |
3260 | list_del(&t->th_list); |
3261 | ||
6146e6a4 | 3262 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3263 | } |
3264 | ||
3265 | static __inline__ void pktgen_xmit(struct pktgen_dev *pkt_dev) | |
3266 | { | |
3267 | struct net_device *odev = NULL; | |
3268 | __u64 idle_start = 0; | |
3269 | int ret; | |
3270 | ||
3271 | odev = pkt_dev->odev; | |
222f1806 | 3272 | |
1da177e4 LT |
3273 | if (pkt_dev->delay_us || pkt_dev->delay_ns) { |
3274 | u64 now; | |
3275 | ||
3276 | now = getCurUs(); | |
3277 | if (now < pkt_dev->next_tx_us) | |
3278 | spin(pkt_dev, pkt_dev->next_tx_us); | |
3279 | ||
3280 | /* This is max DELAY, this has special meaning of | |
3281 | * "never transmit" | |
3282 | */ | |
3283 | if (pkt_dev->delay_us == 0x7FFFFFFF) { | |
3284 | pkt_dev->next_tx_us = getCurUs() + pkt_dev->delay_us; | |
3285 | pkt_dev->next_tx_ns = pkt_dev->delay_ns; | |
3286 | goto out; | |
3287 | } | |
3288 | } | |
222f1806 | 3289 | |
f25f4e44 | 3290 | if ((netif_queue_stopped(odev) || |
378be2c0 | 3291 | (pkt_dev->skb && |
668f895a | 3292 | netif_subqueue_stopped(odev, pkt_dev->skb))) || |
378be2c0 | 3293 | need_resched()) { |
1da177e4 | 3294 | idle_start = getCurUs(); |
222f1806 | 3295 | |
1da177e4 LT |
3296 | if (!netif_running(odev)) { |
3297 | pktgen_stop_device(pkt_dev); | |
95ed63f7 AK |
3298 | if (pkt_dev->skb) |
3299 | kfree_skb(pkt_dev->skb); | |
3300 | pkt_dev->skb = NULL; | |
1da177e4 LT |
3301 | goto out; |
3302 | } | |
222f1806 | 3303 | if (need_resched()) |
1da177e4 | 3304 | schedule(); |
222f1806 | 3305 | |
1da177e4 | 3306 | pkt_dev->idle_acc += getCurUs() - idle_start; |
222f1806 | 3307 | |
f25f4e44 | 3308 | if (netif_queue_stopped(odev) || |
668f895a | 3309 | netif_subqueue_stopped(odev, pkt_dev->skb)) { |
222f1806 | 3310 | pkt_dev->next_tx_us = getCurUs(); /* TODO */ |
1da177e4 | 3311 | pkt_dev->next_tx_ns = 0; |
222f1806 | 3312 | goto out; /* Try the next interface */ |
1da177e4 LT |
3313 | } |
3314 | } | |
222f1806 | 3315 | |
1da177e4 | 3316 | if (pkt_dev->last_ok || !pkt_dev->skb) { |
222f1806 LC |
3317 | if ((++pkt_dev->clone_count >= pkt_dev->clone_skb) |
3318 | || (!pkt_dev->skb)) { | |
1da177e4 | 3319 | /* build a new pkt */ |
222f1806 | 3320 | if (pkt_dev->skb) |
1da177e4 | 3321 | kfree_skb(pkt_dev->skb); |
222f1806 | 3322 | |
1da177e4 LT |
3323 | pkt_dev->skb = fill_packet(odev, pkt_dev); |
3324 | if (pkt_dev->skb == NULL) { | |
25a8b254 DM |
3325 | printk(KERN_ERR "pktgen: ERROR: couldn't " |
3326 | "allocate skb in fill_packet.\n"); | |
1da177e4 | 3327 | schedule(); |
222f1806 | 3328 | pkt_dev->clone_count--; /* back out increment, OOM */ |
1da177e4 LT |
3329 | goto out; |
3330 | } | |
3331 | pkt_dev->allocated_skbs++; | |
222f1806 | 3332 | pkt_dev->clone_count = 0; /* reset counter */ |
1da177e4 LT |
3333 | } |
3334 | } | |
95ed63f7 | 3335 | |
932ff279 | 3336 | netif_tx_lock_bh(odev); |
f25f4e44 | 3337 | if (!netif_queue_stopped(odev) && |
668f895a | 3338 | !netif_subqueue_stopped(odev, pkt_dev->skb)) { |
1da177e4 LT |
3339 | |
3340 | atomic_inc(&(pkt_dev->skb->users)); | |
222f1806 | 3341 | retry_now: |
1da177e4 LT |
3342 | ret = odev->hard_start_xmit(pkt_dev->skb, odev); |
3343 | if (likely(ret == NETDEV_TX_OK)) { | |
222f1806 | 3344 | pkt_dev->last_ok = 1; |
1da177e4 LT |
3345 | pkt_dev->sofar++; |
3346 | pkt_dev->seq_num++; | |
3347 | pkt_dev->tx_bytes += pkt_dev->cur_pkt_size; | |
222f1806 LC |
3348 | |
3349 | } else if (ret == NETDEV_TX_LOCKED | |
1da177e4 LT |
3350 | && (odev->features & NETIF_F_LLTX)) { |
3351 | cpu_relax(); | |
3352 | goto retry_now; | |
222f1806 LC |
3353 | } else { /* Retry it next time */ |
3354 | ||
1da177e4 | 3355 | atomic_dec(&(pkt_dev->skb->users)); |
222f1806 | 3356 | |
1da177e4 LT |
3357 | if (debug && net_ratelimit()) |
3358 | printk(KERN_INFO "pktgen: Hard xmit error\n"); | |
222f1806 | 3359 | |
1da177e4 LT |
3360 | pkt_dev->errors++; |
3361 | pkt_dev->last_ok = 0; | |
3362 | } | |
3363 | ||
3364 | pkt_dev->next_tx_us = getCurUs(); | |
3365 | pkt_dev->next_tx_ns = 0; | |
3366 | ||
3367 | pkt_dev->next_tx_us += pkt_dev->delay_us; | |
3368 | pkt_dev->next_tx_ns += pkt_dev->delay_ns; | |
3369 | ||
3370 | if (pkt_dev->next_tx_ns > 1000) { | |
3371 | pkt_dev->next_tx_us++; | |
3372 | pkt_dev->next_tx_ns -= 1000; | |
3373 | } | |
222f1806 | 3374 | } |
1da177e4 | 3375 | |
222f1806 LC |
3376 | else { /* Retry it next time */ |
3377 | pkt_dev->last_ok = 0; | |
3378 | pkt_dev->next_tx_us = getCurUs(); /* TODO */ | |
1da177e4 | 3379 | pkt_dev->next_tx_ns = 0; |
222f1806 | 3380 | } |
1da177e4 | 3381 | |
932ff279 | 3382 | netif_tx_unlock_bh(odev); |
222f1806 | 3383 | |
1da177e4 LT |
3384 | /* If pkt_dev->count is zero, then run forever */ |
3385 | if ((pkt_dev->count != 0) && (pkt_dev->sofar >= pkt_dev->count)) { | |
3386 | if (atomic_read(&(pkt_dev->skb->users)) != 1) { | |
3387 | idle_start = getCurUs(); | |
3388 | while (atomic_read(&(pkt_dev->skb->users)) != 1) { | |
3389 | if (signal_pending(current)) { | |
3390 | break; | |
3391 | } | |
3392 | schedule(); | |
3393 | } | |
3394 | pkt_dev->idle_acc += getCurUs() - idle_start; | |
3395 | } | |
222f1806 | 3396 | |
1da177e4 LT |
3397 | /* Done with this */ |
3398 | pktgen_stop_device(pkt_dev); | |
95ed63f7 AK |
3399 | if (pkt_dev->skb) |
3400 | kfree_skb(pkt_dev->skb); | |
3401 | pkt_dev->skb = NULL; | |
222f1806 LC |
3402 | } |
3403 | out:; | |
3404 | } | |
1da177e4 | 3405 | |
4ec93edb | 3406 | /* |
1da177e4 LT |
3407 | * Main loop of the thread goes here |
3408 | */ | |
3409 | ||
ee74baa7 | 3410 | static int pktgen_thread_worker(void *arg) |
1da177e4 LT |
3411 | { |
3412 | DEFINE_WAIT(wait); | |
ee74baa7 | 3413 | struct pktgen_thread *t = arg; |
222f1806 | 3414 | struct pktgen_dev *pkt_dev = NULL; |
1da177e4 | 3415 | int cpu = t->cpu; |
1da177e4 | 3416 | |
ee74baa7 | 3417 | BUG_ON(smp_processor_id() != cpu); |
1da177e4 LT |
3418 | |
3419 | init_waitqueue_head(&t->queue); | |
3420 | ||
ba25f9dc | 3421 | pr_debug("pktgen: starting pktgen/%d: pid=%d\n", cpu, task_pid_nr(current)); |
1da177e4 | 3422 | |
ee74baa7 | 3423 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3424 | |
83144186 RW |
3425 | set_freezable(); |
3426 | ||
ee74baa7 DM |
3427 | while (!kthread_should_stop()) { |
3428 | pkt_dev = next_to_run(t); | |
1da177e4 | 3429 | |
ee74baa7 DM |
3430 | if (!pkt_dev && |
3431 | (t->control & (T_STOP | T_RUN | T_REMDEVALL | T_REMDEV)) | |
3432 | == 0) { | |
3433 | prepare_to_wait(&(t->queue), &wait, | |
3434 | TASK_INTERRUPTIBLE); | |
3435 | schedule_timeout(HZ / 10); | |
3436 | finish_wait(&(t->queue), &wait); | |
3437 | } | |
1da177e4 | 3438 | |
ee74baa7 | 3439 | __set_current_state(TASK_RUNNING); |
222f1806 | 3440 | |
b163911f | 3441 | if (pkt_dev) |
1da177e4 LT |
3442 | pktgen_xmit(pkt_dev); |
3443 | ||
222f1806 | 3444 | if (t->control & T_STOP) { |
1da177e4 LT |
3445 | pktgen_stop(t); |
3446 | t->control &= ~(T_STOP); | |
3447 | } | |
3448 | ||
222f1806 | 3449 | if (t->control & T_RUN) { |
1da177e4 LT |
3450 | pktgen_run(t); |
3451 | t->control &= ~(T_RUN); | |
3452 | } | |
3453 | ||
222f1806 | 3454 | if (t->control & T_REMDEVALL) { |
1da177e4 | 3455 | pktgen_rem_all_ifs(t); |
95ed63f7 AK |
3456 | t->control &= ~(T_REMDEVALL); |
3457 | } | |
3458 | ||
222f1806 | 3459 | if (t->control & T_REMDEV) { |
95ed63f7 | 3460 | pktgen_rem_one_if(t); |
1da177e4 LT |
3461 | t->control &= ~(T_REMDEV); |
3462 | } | |
3463 | ||
09fe3ef4 AM |
3464 | try_to_freeze(); |
3465 | ||
ee74baa7 | 3466 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3467 | } |
1da177e4 | 3468 | |
25c4e53a | 3469 | pr_debug("pktgen: %s stopping all device\n", t->tsk->comm); |
222f1806 | 3470 | pktgen_stop(t); |
1da177e4 | 3471 | |
25c4e53a | 3472 | pr_debug("pktgen: %s removing all device\n", t->tsk->comm); |
222f1806 | 3473 | pktgen_rem_all_ifs(t); |
1da177e4 | 3474 | |
25c4e53a | 3475 | pr_debug("pktgen: %s removing thread.\n", t->tsk->comm); |
222f1806 | 3476 | pktgen_rem_thread(t); |
cdcdbe0b | 3477 | |
ee74baa7 | 3478 | return 0; |
1da177e4 LT |
3479 | } |
3480 | ||
222f1806 LC |
3481 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, |
3482 | const char *ifname) | |
1da177e4 | 3483 | { |
c26a8016 | 3484 | struct pktgen_dev *p, *pkt_dev = NULL; |
222f1806 LC |
3485 | if_lock(t); |
3486 | ||
c26a8016 | 3487 | list_for_each_entry(p, &t->if_list, list) |
39df232f | 3488 | if (strncmp(p->odev->name, ifname, IFNAMSIZ) == 0) { |
c26a8016 | 3489 | pkt_dev = p; |
222f1806 LC |
3490 | break; |
3491 | } | |
222f1806 LC |
3492 | |
3493 | if_unlock(t); | |
25c4e53a | 3494 | pr_debug("pktgen: find_dev(%s) returning %p\n", ifname, pkt_dev); |
222f1806 | 3495 | return pkt_dev; |
1da177e4 LT |
3496 | } |
3497 | ||
4ec93edb YH |
3498 | /* |
3499 | * Adds a dev at front of if_list. | |
1da177e4 LT |
3500 | */ |
3501 | ||
222f1806 LC |
3502 | static int add_dev_to_thread(struct pktgen_thread *t, |
3503 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3504 | { |
3505 | int rv = 0; | |
222f1806 LC |
3506 | |
3507 | if_lock(t); | |
3508 | ||
3509 | if (pkt_dev->pg_thread) { | |
25a8b254 DM |
3510 | printk(KERN_ERR "pktgen: ERROR: already assigned " |
3511 | "to a thread.\n"); | |
222f1806 LC |
3512 | rv = -EBUSY; |
3513 | goto out; | |
3514 | } | |
c26a8016 LC |
3515 | |
3516 | list_add(&pkt_dev->list, &t->if_list); | |
222f1806 | 3517 | pkt_dev->pg_thread = t; |
1da177e4 LT |
3518 | pkt_dev->running = 0; |
3519 | ||
222f1806 LC |
3520 | out: |
3521 | if_unlock(t); | |
3522 | return rv; | |
1da177e4 LT |
3523 | } |
3524 | ||
3525 | /* Called under thread lock */ | |
3526 | ||
222f1806 | 3527 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname) |
1da177e4 | 3528 | { |
222f1806 | 3529 | struct pktgen_dev *pkt_dev; |
39df232f | 3530 | int err; |
222f1806 | 3531 | |
1da177e4 LT |
3532 | /* We don't allow a device to be on several threads */ |
3533 | ||
d50a6b56 SH |
3534 | pkt_dev = __pktgen_NN_threads(ifname, FIND); |
3535 | if (pkt_dev) { | |
25a8b254 | 3536 | printk(KERN_ERR "pktgen: ERROR: interface already used.\n"); |
222f1806 LC |
3537 | return -EBUSY; |
3538 | } | |
d50a6b56 SH |
3539 | |
3540 | pkt_dev = kzalloc(sizeof(struct pktgen_dev), GFP_KERNEL); | |
3541 | if (!pkt_dev) | |
3542 | return -ENOMEM; | |
3543 | ||
222f1806 | 3544 | pkt_dev->flows = vmalloc(MAX_CFLOWS * sizeof(struct flow_state)); |
d50a6b56 SH |
3545 | if (pkt_dev->flows == NULL) { |
3546 | kfree(pkt_dev); | |
3547 | return -ENOMEM; | |
3548 | } | |
222f1806 | 3549 | memset(pkt_dev->flows, 0, MAX_CFLOWS * sizeof(struct flow_state)); |
d50a6b56 | 3550 | |
95ed63f7 | 3551 | pkt_dev->removal_mark = 0; |
d50a6b56 SH |
3552 | pkt_dev->min_pkt_size = ETH_ZLEN; |
3553 | pkt_dev->max_pkt_size = ETH_ZLEN; | |
3554 | pkt_dev->nfrags = 0; | |
3555 | pkt_dev->clone_skb = pg_clone_skb_d; | |
3556 | pkt_dev->delay_us = pg_delay_d / 1000; | |
3557 | pkt_dev->delay_ns = pg_delay_d % 1000; | |
3558 | pkt_dev->count = pg_count_d; | |
3559 | pkt_dev->sofar = 0; | |
222f1806 | 3560 | pkt_dev->udp_src_min = 9; /* sink port */ |
d50a6b56 SH |
3561 | pkt_dev->udp_src_max = 9; |
3562 | pkt_dev->udp_dst_min = 9; | |
3563 | pkt_dev->udp_dst_max = 9; | |
3564 | ||
34954ddc FF |
3565 | pkt_dev->vlan_p = 0; |
3566 | pkt_dev->vlan_cfi = 0; | |
3567 | pkt_dev->vlan_id = 0xffff; | |
3568 | pkt_dev->svlan_p = 0; | |
3569 | pkt_dev->svlan_cfi = 0; | |
3570 | pkt_dev->svlan_id = 0xffff; | |
3571 | ||
39df232f SH |
3572 | err = pktgen_setup_dev(pkt_dev, ifname); |
3573 | if (err) | |
3574 | goto out1; | |
d50a6b56 | 3575 | |
39df232f SH |
3576 | pkt_dev->entry = create_proc_entry(ifname, 0600, pg_proc_dir); |
3577 | if (!pkt_dev->entry) { | |
25a8b254 | 3578 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
d50a6b56 | 3579 | PG_PROC_DIR, ifname); |
39df232f SH |
3580 | err = -EINVAL; |
3581 | goto out2; | |
d50a6b56 | 3582 | } |
39df232f SH |
3583 | pkt_dev->entry->proc_fops = &pktgen_if_fops; |
3584 | pkt_dev->entry->data = pkt_dev; | |
a553e4a6 JHS |
3585 | #ifdef CONFIG_XFRM |
3586 | pkt_dev->ipsmode = XFRM_MODE_TRANSPORT; | |
3587 | pkt_dev->ipsproto = IPPROTO_ESP; | |
3588 | #endif | |
d50a6b56 SH |
3589 | |
3590 | return add_dev_to_thread(t, pkt_dev); | |
39df232f SH |
3591 | out2: |
3592 | dev_put(pkt_dev->odev); | |
3593 | out1: | |
a553e4a6 JHS |
3594 | #ifdef CONFIG_XFRM |
3595 | free_SAs(pkt_dev); | |
3596 | #endif | |
39df232f SH |
3597 | if (pkt_dev->flows) |
3598 | vfree(pkt_dev->flows); | |
3599 | kfree(pkt_dev); | |
3600 | return err; | |
1da177e4 LT |
3601 | } |
3602 | ||
ee74baa7 | 3603 | static int __init pktgen_create_thread(int cpu) |
1da177e4 | 3604 | { |
cdcdbe0b | 3605 | struct pktgen_thread *t; |
d50a6b56 | 3606 | struct proc_dir_entry *pe; |
ee74baa7 | 3607 | struct task_struct *p; |
222f1806 LC |
3608 | |
3609 | t = kzalloc(sizeof(struct pktgen_thread), GFP_KERNEL); | |
3610 | if (!t) { | |
25a8b254 DM |
3611 | printk(KERN_ERR "pktgen: ERROR: out of memory, can't " |
3612 | "create new thread.\n"); | |
222f1806 LC |
3613 | return -ENOMEM; |
3614 | } | |
3615 | ||
222f1806 | 3616 | spin_lock_init(&t->if_lock); |
1da177e4 | 3617 | t->cpu = cpu; |
222f1806 | 3618 | |
ee74baa7 DM |
3619 | INIT_LIST_HEAD(&t->if_list); |
3620 | ||
3621 | list_add_tail(&t->th_list, &pktgen_threads); | |
3622 | ||
3623 | p = kthread_create(pktgen_thread_worker, t, "kpktgend_%d", cpu); | |
3624 | if (IS_ERR(p)) { | |
25a8b254 DM |
3625 | printk(KERN_ERR "pktgen: kernel_thread() failed " |
3626 | "for cpu %d\n", t->cpu); | |
ee74baa7 DM |
3627 | list_del(&t->th_list); |
3628 | kfree(t); | |
3629 | return PTR_ERR(p); | |
3630 | } | |
3631 | kthread_bind(p, cpu); | |
3632 | t->tsk = p; | |
3633 | ||
3634 | pe = create_proc_entry(t->tsk->comm, 0600, pg_proc_dir); | |
222f1806 | 3635 | if (!pe) { |
25a8b254 | 3636 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
ee74baa7 DM |
3637 | PG_PROC_DIR, t->tsk->comm); |
3638 | kthread_stop(p); | |
3639 | list_del(&t->th_list); | |
222f1806 LC |
3640 | kfree(t); |
3641 | return -EINVAL; | |
3642 | } | |
d50a6b56 SH |
3643 | |
3644 | pe->proc_fops = &pktgen_thread_fops; | |
3645 | pe->data = t; | |
1da177e4 | 3646 | |
ee74baa7 | 3647 | wake_up_process(p); |
1da177e4 LT |
3648 | |
3649 | return 0; | |
3650 | } | |
3651 | ||
4ec93edb YH |
3652 | /* |
3653 | * Removes a device from the thread if_list. | |
1da177e4 | 3654 | */ |
222f1806 LC |
3655 | static void _rem_dev_from_if_list(struct pktgen_thread *t, |
3656 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3657 | { |
c26a8016 LC |
3658 | struct list_head *q, *n; |
3659 | struct pktgen_dev *p; | |
1da177e4 | 3660 | |
c26a8016 LC |
3661 | list_for_each_safe(q, n, &t->if_list) { |
3662 | p = list_entry(q, struct pktgen_dev, list); | |
3663 | if (p == pkt_dev) | |
3664 | list_del(&p->list); | |
1da177e4 LT |
3665 | } |
3666 | } | |
3667 | ||
222f1806 LC |
3668 | static int pktgen_remove_device(struct pktgen_thread *t, |
3669 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3670 | { |
3671 | ||
25c4e53a | 3672 | pr_debug("pktgen: remove_device pkt_dev=%p\n", pkt_dev); |
1da177e4 | 3673 | |
222f1806 | 3674 | if (pkt_dev->running) { |
25a8b254 DM |
3675 | printk(KERN_WARNING "pktgen: WARNING: trying to remove a " |
3676 | "running interface, stopping it now.\n"); | |
222f1806 LC |
3677 | pktgen_stop_device(pkt_dev); |
3678 | } | |
3679 | ||
3680 | /* Dis-associate from the interface */ | |
1da177e4 LT |
3681 | |
3682 | if (pkt_dev->odev) { | |
3683 | dev_put(pkt_dev->odev); | |
222f1806 LC |
3684 | pkt_dev->odev = NULL; |
3685 | } | |
3686 | ||
1da177e4 LT |
3687 | /* And update the thread if_list */ |
3688 | ||
3689 | _rem_dev_from_if_list(t, pkt_dev); | |
3690 | ||
39df232f SH |
3691 | if (pkt_dev->entry) |
3692 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1da177e4 | 3693 | |
a553e4a6 JHS |
3694 | #ifdef CONFIG_XFRM |
3695 | free_SAs(pkt_dev); | |
3696 | #endif | |
1da177e4 LT |
3697 | if (pkt_dev->flows) |
3698 | vfree(pkt_dev->flows); | |
3699 | kfree(pkt_dev); | |
222f1806 | 3700 | return 0; |
1da177e4 LT |
3701 | } |
3702 | ||
222f1806 | 3703 | static int __init pg_init(void) |
1da177e4 LT |
3704 | { |
3705 | int cpu; | |
d50a6b56 | 3706 | struct proc_dir_entry *pe; |
1da177e4 | 3707 | |
25a8b254 | 3708 | printk(KERN_INFO "%s", version); |
1da177e4 | 3709 | |
457c4cbc | 3710 | pg_proc_dir = proc_mkdir(PG_PROC_DIR, init_net.proc_net); |
d50a6b56 SH |
3711 | if (!pg_proc_dir) |
3712 | return -ENODEV; | |
3713 | pg_proc_dir->owner = THIS_MODULE; | |
1da177e4 | 3714 | |
d50a6b56 | 3715 | pe = create_proc_entry(PGCTRL, 0600, pg_proc_dir); |
222f1806 | 3716 | if (pe == NULL) { |
25a8b254 DM |
3717 | printk(KERN_ERR "pktgen: ERROR: cannot create %s " |
3718 | "procfs entry.\n", PGCTRL); | |
457c4cbc | 3719 | proc_net_remove(&init_net, PG_PROC_DIR); |
222f1806 LC |
3720 | return -EINVAL; |
3721 | } | |
1da177e4 | 3722 | |
222f1806 LC |
3723 | pe->proc_fops = &pktgen_fops; |
3724 | pe->data = NULL; | |
1da177e4 LT |
3725 | |
3726 | /* Register us to receive netdevice events */ | |
3727 | register_netdevice_notifier(&pktgen_notifier_block); | |
222f1806 | 3728 | |
670c02c2 | 3729 | for_each_online_cpu(cpu) { |
8024bb24 | 3730 | int err; |
1da177e4 | 3731 | |
ee74baa7 | 3732 | err = pktgen_create_thread(cpu); |
8024bb24 | 3733 | if (err) |
25a8b254 DM |
3734 | printk(KERN_WARNING "pktgen: WARNING: Cannot create " |
3735 | "thread for cpu %d (%d)\n", cpu, err); | |
222f1806 | 3736 | } |
8024bb24 LC |
3737 | |
3738 | if (list_empty(&pktgen_threads)) { | |
25a8b254 DM |
3739 | printk(KERN_ERR "pktgen: ERROR: Initialization failed for " |
3740 | "all threads\n"); | |
8024bb24 LC |
3741 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3742 | remove_proc_entry(PGCTRL, pg_proc_dir); | |
457c4cbc | 3743 | proc_net_remove(&init_net, PG_PROC_DIR); |
8024bb24 LC |
3744 | return -ENODEV; |
3745 | } | |
3746 | ||
222f1806 | 3747 | return 0; |
1da177e4 LT |
3748 | } |
3749 | ||
3750 | static void __exit pg_cleanup(void) | |
3751 | { | |
cdcdbe0b LC |
3752 | struct pktgen_thread *t; |
3753 | struct list_head *q, *n; | |
1da177e4 LT |
3754 | wait_queue_head_t queue; |
3755 | init_waitqueue_head(&queue); | |
3756 | ||
222f1806 | 3757 | /* Stop all interfaces & threads */ |
1da177e4 | 3758 | |
cdcdbe0b LC |
3759 | list_for_each_safe(q, n, &pktgen_threads) { |
3760 | t = list_entry(q, struct pktgen_thread, th_list); | |
ee74baa7 DM |
3761 | kthread_stop(t->tsk); |
3762 | kfree(t); | |
222f1806 | 3763 | } |
1da177e4 | 3764 | |
222f1806 | 3765 | /* Un-register us from receiving netdevice events */ |
1da177e4 LT |
3766 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3767 | ||
222f1806 | 3768 | /* Clean up proc file system */ |
d50a6b56 | 3769 | remove_proc_entry(PGCTRL, pg_proc_dir); |
457c4cbc | 3770 | proc_net_remove(&init_net, PG_PROC_DIR); |
1da177e4 LT |
3771 | } |
3772 | ||
1da177e4 LT |
3773 | module_init(pg_init); |
3774 | module_exit(pg_cleanup); | |
3775 | ||
3776 | MODULE_AUTHOR("Robert Olsson <robert.olsson@its.uu.se"); | |
3777 | MODULE_DESCRIPTION("Packet Generator tool"); | |
3778 | MODULE_LICENSE("GPL"); | |
3779 | module_param(pg_count_d, int, 0); | |
3780 | module_param(pg_delay_d, int, 0); | |
3781 | module_param(pg_clone_skb_d, int, 0); | |
3782 | module_param(debug, int, 0); |