projects / deliverable / binutils-gdb.git / blame
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1 | /* Linux namespaces(7) support. |
| 2 | ||
| b811d2c2 | 3 | Copyright (C) 2015-2020 Free Software Foundation, Inc. |
| 4b8b5e72 GB |
4 | |
| 5 | This file is part of GDB. | |
| 6 | ||
| 7 | This program is free software; you can redistribute it and/or modify | |
| 8 | it under the terms of the GNU General Public License as published by | |
| 9 | the Free Software Foundation; either version 3 of the License, or | |
| 10 | (at your option) any later version. | |
| 11 | ||
| 12 | This program is distributed in the hope that it will be useful, | |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | GNU General Public License for more details. | |
| 16 | ||
| 17 | You should have received a copy of the GNU General Public License | |
| 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
| 19 | ||
| 1a5c2598 TT |
20 | #ifndef NAT_LINUX_NAMESPACES_H |
| 21 | #define NAT_LINUX_NAMESPACES_H | |
| 4b8b5e72 | 22 | |
| 491144b5 | 23 | /* Set to true to enable debugging of Linux namespaces code. */ |
| 4b8b5e72 | 24 | |
| 491144b5 | 25 | extern bool debug_linux_namespaces; |
| 4b8b5e72 GB |
26 | |
| 27 | /* Enumeration of Linux namespace types. */ | |
| 28 | ||
| 29 | enum linux_ns_type | |
| 30 | { | |
| 31 | /* IPC namespace: System V IPC, POSIX message queues. */ | |
| 32 | LINUX_NS_IPC, | |
| 33 | ||
| 34 | /* Mount namespace: mount points. */ | |
| 35 | LINUX_NS_MNT, | |
| 36 | ||
| 37 | /* Network namespace: network devices, stacks, ports, etc. */ | |
| 38 | LINUX_NS_NET, | |
| 39 | ||
| 40 | /* PID namespace: process IDs. */ | |
| 41 | LINUX_NS_PID, | |
| 42 | ||
| 43 | /* User namespace: user and group IDs. */ | |
| 44 | LINUX_NS_USER, | |
| 45 | ||
| 46 | /* UTS namespace: hostname and NIS domain name. */ | |
| 47 | LINUX_NS_UTS, | |
| 48 | ||
| 49 | /* Number of Linux namespaces. */ | |
| 50 | NUM_LINUX_NS_TYPES | |
| 51 | }; | |
| 52 | ||
| 53 | /* Return nonzero if process PID has the same TYPE namespace as the | |
| 54 | calling process, or if the kernel does not support TYPE namespaces | |
| 55 | (in which case there is only one TYPE namespace). Return zero if | |
| 56 | the kernel supports TYPE namespaces and the two processes have | |
| 57 | different TYPE namespaces. */ | |
| 58 | ||
| 59 | extern int linux_ns_same (pid_t pid, enum linux_ns_type type); | |
| 60 | ||
| 61 | /* Like gdb_open_cloexec, but in the mount namespace of process | |
| 62 | PID. */ | |
| 63 | ||
| 64 | extern int linux_mntns_open_cloexec (pid_t pid, const char *filename, | |
| 65 | int flags, mode_t mode); | |
| 66 | ||
| 67 | /* Like unlink(2), but in the mount namespace of process PID. */ | |
| 68 | ||
| 69 | extern int linux_mntns_unlink (pid_t pid, const char *filename); | |
| 70 | ||
| 71 | /* Like readlink(2), but in the mount namespace of process PID. */ | |
| 72 | ||
| 73 | extern ssize_t linux_mntns_readlink (pid_t pid, const char *filename, | |
| 74 | char *buf, size_t bufsiz); | |
| 75 | ||
| 1a5c2598 | 76 | #endif /* NAT_LINUX_NAMESPACES_H */ |