diff options
| author | Len Brown <len.brown@intel.com> | 2010-08-15 01:06:31 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2010-08-15 01:06:31 -0400 |
| commit | 95ee46aa8698f2000647dfb362400fadbb5807cf (patch) | |
| tree | e5a05c7297f997e191c73091934e42e3195c0e40 /net/core/scm.c | |
| parent | cfa806f059801dbe7e435745eb2e187c8bfe1e7f (diff) | |
| parent | 92fa5bd9a946b6e7aab6764e7312e4e3d9bed295 (diff) | |
Merge branch 'linus' into release
Conflicts:
drivers/acpi/debug.c
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'net/core/scm.c')
| -rw-r--r-- | net/core/scm.c | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/net/core/scm.c b/net/core/scm.c index b88f6f9d0b9..413cab89017 100644 --- a/net/core/scm.c +++ b/net/core/scm.c @@ -130,6 +130,7 @@ void __scm_destroy(struct scm_cookie *scm) } } } +EXPORT_SYMBOL(__scm_destroy); int __scm_send(struct socket *sock, struct msghdr *msg, struct scm_cookie *p) { @@ -170,6 +171,30 @@ int __scm_send(struct socket *sock, struct msghdr *msg, struct scm_cookie *p) err = scm_check_creds(&p->creds); if (err) goto error; + + if (pid_vnr(p->pid) != p->creds.pid) { + struct pid *pid; + err = -ESRCH; + pid = find_get_pid(p->creds.pid); + if (!pid) + goto error; + put_pid(p->pid); + p->pid = pid; + } + + if ((p->cred->euid != p->creds.uid) || + (p->cred->egid != p->creds.gid)) { + struct cred *cred; + err = -ENOMEM; + cred = prepare_creds(); + if (!cred) + goto error; + + cred->uid = cred->euid = p->creds.uid; + cred->gid = cred->egid = p->creds.uid; + put_cred(p->cred); + p->cred = cred; + } break; default: goto error; @@ -187,6 +212,7 @@ error: scm_destroy(p); return err; } +EXPORT_SYMBOL(__scm_send); int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data) { @@ -225,6 +251,7 @@ int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data) out: return err; } +EXPORT_SYMBOL(put_cmsg); void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm) { @@ -294,6 +321,7 @@ void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm) */ __scm_destroy(scm); } +EXPORT_SYMBOL(scm_detach_fds); struct scm_fp_list *scm_fp_dup(struct scm_fp_list *fpl) { @@ -311,9 +339,4 @@ struct scm_fp_list *scm_fp_dup(struct scm_fp_list *fpl) } return new_fpl; } - -EXPORT_SYMBOL(__scm_destroy); -EXPORT_SYMBOL(__scm_send); -EXPORT_SYMBOL(put_cmsg); -EXPORT_SYMBOL(scm_detach_fds); EXPORT_SYMBOL(scm_fp_dup); |