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| author |   Richard Guy Briggs <rgb@redhat.com> | 2016-04-21 14:14:01 -0400 |
|---|---|---|
| committer |   Paul Moore <paul@paul-moore.com> | 2016-04-26 17:19:16 -0400 |
| commit | db0a6fb5d97afe01fd9c47d37c6daa82d4d4001d (patch) | |
| tree | 872477fc77baf62efbcd876014557bca67684b0e /include/linux/audit.h | |
| parent | audit: we don't need to __set_current_state(TASK_RUNNING) (diff) | |
| download | linux-dev-db0a6fb5d97afe01fd9c47d37c6daa82d4d4001d.tar.xz linux-dev-db0a6fb5d97afe01fd9c47d37c6daa82d4d4001d.zip | |
audit: add tty field to LOGIN event
The tty field was missing from AUDIT_LOGIN events.
Refactor code to create a new function audit_get_tty(), using it to
replace the call in audit_log_task_info() and to add it to
audit_log_set_loginuid(). Lock and bump the kref to protect it, adding
audit_put_tty() alias to decrement it.
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'include/linux/audit.h')
| -rw-r--r-- | include/linux/audit.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/audit.h b/include/linux/audit.h index b40ed5df5542..32cdafb312d8 100644 --- a/include/linux/audit.h +++ b/include/linux/audit.h @@ -26,6 +26,7 @@ #include <linux/sched.h> #include <linux/ptrace.h> #include <uapi/linux/audit.h> +#include <linux/tty.h> #define AUDIT_INO_UNSET ((unsigned long)-1) #define AUDIT_DEV_UNSET ((dev_t)-1) @@ -343,6 +344,23 @@ static inline unsigned int audit_get_sessionid(struct task_struct *tsk) return tsk->sessionid; } +static inline struct tty_struct *audit_get_tty(struct task_struct *tsk) +{ + struct tty_struct *tty = NULL; + unsigned long flags; + + spin_lock_irqsave(&tsk->sighand->siglock, flags); + if (tsk->signal) + tty = tty_kref_get(tsk->signal->tty); + spin_unlock_irqrestore(&tsk->sighand->siglock, flags); + return tty; +} + +static inline void audit_put_tty(struct tty_struct *tty) +{ + tty_kref_put(tty); +} + extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp); extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode); extern void __audit_bprm(struct linux_binprm *bprm); @@ -500,6 +518,12 @@ static inline unsigned int audit_get_sessionid(struct task_struct *tsk) { return -1; } +static inline struct tty_struct *audit_get_tty(struct task_struct *tsk) +{ + return NULL; +} +static inline void audit_put_tty(struct tty_struct *tty) +{ } static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp) { } static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, |