diff options
| author | jhb <jhb@FreeBSD.org> | 2002-04-11 21:17:45 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2002-04-11 21:17:45 +0000 |
| commit | 7b11cd5cb00ed4581da6603acdbf71b04609869e (patch) | |
| tree | 526cb0f2c9283cb404693cfd49e31a7c710996cb /sys/security/lomac | |
| parent | e3b656d4d9f6edec92c8dd1c1975b24db580b985 (diff) | |
| download | FreeBSD-src-7b11cd5cb00ed4581da6603acdbf71b04609869e.zip FreeBSD-src-7b11cd5cb00ed4581da6603acdbf71b04609869e.tar.gz | |
Use the proc lock to protect p_ucred while we read a few items from it.
Diffstat (limited to 'sys/security/lomac')
| -rw-r--r-- | sys/security/lomac/kernel_log.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/sys/security/lomac/kernel_log.c b/sys/security/lomac/kernel_log.c index 5e9bf15..56665f5 100644 --- a/sys/security/lomac/kernel_log.c +++ b/sys/security/lomac/kernel_log.c @@ -37,6 +37,8 @@ #include <sys/param.h> #include <sys/systm.h> +#include <sys/lock.h> +#include <sys/mutex.h> #include <sys/module.h> #include <sys/sysctl.h> #include <sys/syslog.h> @@ -129,9 +131,14 @@ log_append_int(lomac_log_t *s, int data) { void log_append_subject_id(lomac_log_t *s, const lomac_subject_t *p_subject) { - - (void)sbuf_printf(s, "p%dg%du%d:%s", p_subject->p_pid, - p_subject->p_pgrp->pg_id, p_subject->p_ucred->cr_uid, + uid_t uid; + pid_t pgid; + + PROC_LOCK(p_subject); + uid = p_subject->p_ucred->cr_uid; + pgid = p_subject->p_pgrp->pg_id; + PROC_UNLOCK(p_subject); + (void)sbuf_printf(s, "p%dg%du%d:%s", p_subject->p_pid, pgid, uid, p_subject->p_comm); } /* log_append_subject_id() */ |
