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Code Issues Releases Wiki Activity

Make setprocattr more abstract so it will work for any pid

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Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <kees.cook@canonical.com>
This commit is contained in:
John Johansen
2011-07-21 11:10:35 -07:00
parent 3f59259dec
commit 2fec4eb2b4
1 changed files with 5 additions and 6 deletions
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11
libraries/libapparmor/src/kernel_interface.c
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@@ -54,12 +54,11 @@ static char *procattr_path(pid_t pid, const char *attr)
return NULL;
}
static int setprocattr(const char *attr, const char *buf, int len)
static int setprocattr(pid_t tid, const char *attr, const char *buf, int len)
{
int rc = -1;
int fd, ret;
char *ctl = NULL;
pid_t tid = aa_gettid();
if (!buf) {
errno = EINVAL;
@@ -120,7 +119,7 @@ int aa_change_hat(const char *subprofile, unsigned long token)
goto out;
}
rc = setprocattr("current", buf, len);
rc = setprocattr(aa_gettid(), "current", buf, len);
out:
if (buf) {
/* clear local copy of magic token before freeing */
@@ -151,7 +150,7 @@ int aa_change_profile(const char *profile)
if (len < 0)
return -1;
rc = setprocattr("current", buf, len);
rc = setprocattr(aa_gettid(), "current", buf, len);
free(buf);
return rc;
@@ -172,7 +171,7 @@ int aa_change_onexec(const char *profile)
if (len < 0)
return -1;
rc = setprocattr("/proc/%d/attr/exec", buf, len);
rc = setprocattr(aa_gettid(), "exec", buf, len);
free(buf);
return rc;
@@ -233,7 +232,7 @@ int aa_change_hatv(const char *subprofiles[], unsigned long token)
/* step pos past trailing \0 */
pos++;
rc = setprocattr("/proc/%d/attr/current", buf, pos - buf);
rc = setprocattr(aa_gettid(), "current", buf, pos - buf);
out:
if (buf) {