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-rw-r--r--security/apparmor/procattr.c71
1 files changed, 31 insertions, 40 deletions
diff --git a/security/apparmor/procattr.c b/security/apparmor/procattr.c
index 3466a27bca09..d81617379d63 100644
--- a/security/apparmor/procattr.c
+++ b/security/apparmor/procattr.c
@@ -34,50 +34,41 @@
*
* Returns: size of string placed in @string else error code on failure
*/
-int aa_getprocattr(struct aa_profile *profile, char **string)
+int aa_getprocattr(struct aa_label *label, char **string)
{
- char *str;
- int len = 0, mode_len = 0, ns_len = 0, name_len;
- const char *mode_str = aa_profile_mode_names[profile->mode];
- const char *ns_name = NULL;
- struct aa_ns *ns = profile->ns;
- struct aa_ns *current_ns = __aa_current_profile()->ns;
- char *s;
-
- if (!aa_ns_visible(current_ns, ns, true))
- return -EACCES;
-
- ns_name = aa_ns_name(current_ns, ns, true);
- ns_len = strlen(ns_name);
+ struct aa_ns *ns = labels_ns(label);
+ struct aa_ns *current_ns = aa_get_current_ns();
+ int len;
- /* if the visible ns_name is > 0 increase size for : :// seperator */
- if (ns_len)
- ns_len += 4;
+ if (!aa_ns_visible(current_ns, ns, true)) {
+ aa_put_ns(current_ns);
+ return -EACCES;
+ }
- /* unconfined profiles don't have a mode string appended */
- if (!unconfined(profile))
- mode_len = strlen(mode_str) + 3; /* + 3 for _() */
+ len = aa_label_snxprint(NULL, 0, current_ns, label,
+ FLAG_SHOW_MODE | FLAG_VIEW_SUBNS |
+ FLAG_HIDDEN_UNCONFINED);
+ AA_BUG(len < 0);
- name_len = strlen(profile->base.hname);
- len = mode_len + ns_len + name_len + 1; /* + 1 for \n */
- s = str = kmalloc(len + 1, GFP_KERNEL); /* + 1 \0 */
- if (!str)
+ *string = kmalloc(len + 2, GFP_KERNEL);
+ if (!*string) {
+ aa_put_ns(current_ns);
return -ENOMEM;
+ }
- if (ns_len) {
- /* skip over prefix current_ns->base.hname and separating // */
- sprintf(s, ":%s://", ns_name);
- s += ns_len;
+ len = aa_label_snxprint(*string, len + 2, current_ns, label,
+ FLAG_SHOW_MODE | FLAG_VIEW_SUBNS |
+ FLAG_HIDDEN_UNCONFINED);
+ if (len < 0) {
+ aa_put_ns(current_ns);
+ return len;
}
- if (unconfined(profile))
- /* mode string not being appended */
- sprintf(s, "%s\n", profile->base.hname);
- else
- sprintf(s, "%s (%s)\n", profile->base.hname, mode_str);
- *string = str;
-
- /* NOTE: len does not include \0 of string, not saved as part of file */
- return len;
+
+ (*string)[len] = '\n';
+ (*string)[len + 1] = 0;
+
+ aa_put_ns(current_ns);
+ return len + 1;
}
/**
@@ -108,11 +99,11 @@ static char *split_token_from_name(const char *op, char *args, u64 *token)
* aa_setprocattr_chagnehat - handle procattr interface to change_hat
* @args: args received from writing to /proc/<pid>/attr/current (NOT NULL)
* @size: size of the args
- * @test: true if this is a test of change_hat permissions
+ * @flags: set of flags governing behavior
*
* Returns: %0 or error code if change_hat fails
*/
-int aa_setprocattr_changehat(char *args, size_t size, int test)
+int aa_setprocattr_changehat(char *args, size_t size, int flags)
{
char *hat;
u64 token;
@@ -147,5 +138,5 @@ int aa_setprocattr_changehat(char *args, size_t size, int test)
AA_DEBUG("%s: (pid %d) Magic 0x%llx count %d Hat '%s'\n",
__func__, current->pid, token, count, "<NULL>");
- return aa_change_hat(hats, count, token, test);
+ return aa_change_hat(hats, count, token, flags);
}