projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 12864b31 NK |
1 | /* |
| 2 | * Helper functions for handling target threads/cpus | |
| 3 | * | |
| 4 | * Copyright (C) 2012, LG Electronics, Namhyung Kim <namhyung.kim@lge.com> | |
| 5 | * | |
| 6 | * Released under the GPL v2. | |
| 7 | */ | |
| 8 | ||
| 9 | #include "target.h" | |
| 10 | #include "debug.h" | |
| 11 | ||
| dfe78ada NK |
12 | #include <pwd.h> |
| 13 | ||
| 12864b31 | 14 | |
| 60bbddaa | 15 | enum perf_target_errno perf_target__validate(struct perf_target *target) |
| 12864b31 | 16 | { |
| 60bbddaa NK |
17 | enum perf_target_errno ret = PERF_ERRNO_TARGET__SUCCESS; |
| 18 | ||
| 12864b31 NK |
19 | if (target->pid) |
| 20 | target->tid = target->pid; | |
| 21 | ||
| 22 | /* CPU and PID are mutually exclusive */ | |
| 23 | if (target->tid && target->cpu_list) { | |
| 12864b31 | 24 | target->cpu_list = NULL; |
| 60bbddaa NK |
25 | if (ret == PERF_ERRNO_TARGET__SUCCESS) |
| 26 | ret = PERF_ERRNO_TARGET__PID_OVERRIDE_CPU; | |
| 12864b31 NK |
27 | } |
| 28 | ||
| 29 | /* UID and PID are mutually exclusive */ | |
| 30 | if (target->tid && target->uid_str) { | |
| 12864b31 | 31 | target->uid_str = NULL; |
| 60bbddaa NK |
32 | if (ret == PERF_ERRNO_TARGET__SUCCESS) |
| 33 | ret = PERF_ERRNO_TARGET__PID_OVERRIDE_UID; | |
| 12864b31 NK |
34 | } |
| 35 | ||
| 36 | /* UID and CPU are mutually exclusive */ | |
| 37 | if (target->uid_str && target->cpu_list) { | |
| 12864b31 | 38 | target->cpu_list = NULL; |
| 60bbddaa NK |
39 | if (ret == PERF_ERRNO_TARGET__SUCCESS) |
| 40 | ret = PERF_ERRNO_TARGET__UID_OVERRIDE_CPU; | |
| 12864b31 NK |
41 | } |
| 42 | ||
| 60bbddaa NK |
43 | /* PID and SYSTEM are mutually exclusive */ |
| 44 | if (target->tid && target->system_wide) { | |
| 12864b31 | 45 | target->system_wide = false; |
| 60bbddaa NK |
46 | if (ret == PERF_ERRNO_TARGET__SUCCESS) |
| 47 | ret = PERF_ERRNO_TARGET__PID_OVERRIDE_SYSTEM; | |
| 12864b31 | 48 | } |
| 60bbddaa NK |
49 | |
| 50 | /* UID and SYSTEM are mutually exclusive */ | |
| 51 | if (target->uid_str && target->system_wide) { | |
| 52 | target->system_wide = false; | |
| 53 | if (ret == PERF_ERRNO_TARGET__SUCCESS) | |
| 54 | ret = PERF_ERRNO_TARGET__UID_OVERRIDE_SYSTEM; | |
| 55 | } | |
| 56 | ||
| 57 | return ret; | |
| 12864b31 | 58 | } |
| dfe78ada NK |
59 | |
| 60 | enum perf_target_errno perf_target__parse_uid(struct perf_target *target) | |
| 61 | { | |
| 62 | struct passwd pwd, *result; | |
| 63 | char buf[1024]; | |
| 64 | const char *str = target->uid_str; | |
| 65 | ||
| 66 | target->uid = UINT_MAX; | |
| 67 | if (str == NULL) | |
| 68 | return PERF_ERRNO_TARGET__SUCCESS; | |
| 69 | ||
| 70 | /* Try user name first */ | |
| 71 | getpwnam_r(str, &pwd, buf, sizeof(buf), &result); | |
| 72 | ||
| 73 | if (result == NULL) { | |
| 74 | /* | |
| 75 | * The user name not found. Maybe it's a UID number. | |
| 76 | */ | |
| 77 | char *endptr; | |
| 78 | int uid = strtol(str, &endptr, 10); | |
| 79 | ||
| 80 | if (*endptr != '\0') | |
| 81 | return PERF_ERRNO_TARGET__INVALID_UID; | |
| 82 | ||
| 83 | getpwuid_r(uid, &pwd, buf, sizeof(buf), &result); | |
| 84 | ||
| 85 | if (result == NULL) | |
| 86 | return PERF_ERRNO_TARGET__USER_NOT_FOUND; | |
| 87 | } | |
| 88 | ||
| 89 | target->uid = result->pw_uid; | |
| 90 | return PERF_ERRNO_TARGET__SUCCESS; | |
| 91 | } |