diff options
Diffstat (limited to 'kernel')
-rw-r--r-- | kernel/capability.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/kernel/capability.c b/kernel/capability.c index 64db1ee820c2..8986a37a67ea 100644 --- a/kernel/capability.c +++ b/kernel/capability.c | |||
@@ -31,8 +31,14 @@ static DEFINE_SPINLOCK(task_capability_lock); | |||
31 | * uninteresting and/or not to be changed. | 31 | * uninteresting and/or not to be changed. |
32 | */ | 32 | */ |
33 | 33 | ||
34 | /* | 34 | /** |
35 | * sys_capget - get the capabilities of a given process. | 35 | * sys_capget - get the capabilities of a given process. |
36 | * @header: pointer to struct that contains capability version and | ||
37 | * target pid data | ||
38 | * @dataptr: pointer to struct that contains the effective, permitted, | ||
39 | * and inheritable capabilities that are returned | ||
40 | * | ||
41 | * Returns 0 on success and < 0 on error. | ||
36 | */ | 42 | */ |
37 | asmlinkage long sys_capget(cap_user_header_t header, cap_user_data_t dataptr) | 43 | asmlinkage long sys_capget(cap_user_header_t header, cap_user_data_t dataptr) |
38 | { | 44 | { |
@@ -141,8 +147,14 @@ static inline int cap_set_all(kernel_cap_t *effective, | |||
141 | return ret; | 147 | return ret; |
142 | } | 148 | } |
143 | 149 | ||
144 | /* | 150 | /** |
145 | * sys_capset - set capabilities for a given process, all processes, or all | 151 | * sys_capset - set capabilities for a process or a group of processes |
152 | * @header: pointer to struct that contains capability version and | ||
153 | * target pid data | ||
154 | * @data: pointer to struct that contains the effective, permitted, | ||
155 | * and inheritable capabilities | ||
156 | * | ||
157 | * Set capabilities for a given process, all processes, or all | ||
146 | * processes in a given process group. | 158 | * processes in a given process group. |
147 | * | 159 | * |
148 | * The restrictions on setting capabilities are specified as: | 160 | * The restrictions on setting capabilities are specified as: |
@@ -152,6 +164,8 @@ static inline int cap_set_all(kernel_cap_t *effective, | |||
152 | * I: any raised capabilities must be a subset of the (old current) permitted | 164 | * I: any raised capabilities must be a subset of the (old current) permitted |
153 | * P: any raised capabilities must be a subset of the (old current) permitted | 165 | * P: any raised capabilities must be a subset of the (old current) permitted |
154 | * E: must be set to a subset of (new target) permitted | 166 | * E: must be set to a subset of (new target) permitted |
167 | * | ||
168 | * Returns 0 on success and < 0 on error. | ||
155 | */ | 169 | */ |
156 | asmlinkage long sys_capset(cap_user_header_t header, const cap_user_data_t data) | 170 | asmlinkage long sys_capset(cap_user_header_t header, const cap_user_data_t data) |
157 | { | 171 | { |