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authorLinus Torvalds <torvalds@linux-foundation.org>2020-08-04 14:20:26 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-04 14:20:26 -0700
commitfd76a74d940ae3d6b8b2395cd12914630c7e1739 (patch)
tree6ebff780642f5db3039ee5385c2dbb5c21b7a144 /security
parent49e917deeb81e263bcdb4b20e61ca18111995ffe (diff)
parentb43870c74f3fdf0cd06bf5f1b7a5ed70a2cd4ed2 (diff)
Merge tag 'audit-pr-20200803' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit updates from Paul Moore: "Aside from some smaller bug fixes, here are the highlights: - add a new backlog wait metric to the audit status message, this is intended to help admins determine how long processes have been waiting for the audit backlog queue to clear - generate audit records for nftables configuration changes - generate CWD audit records for for the relevant LSM audit records" * tag 'audit-pr-20200803' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit: audit: report audit wait metric in audit status reply audit: purge audit_log_string from the intra-kernel audit API audit: issue CWD record to accompany LSM_AUDIT_DATA_* records audit: use the proper gfp flags in the audit_log_nfcfg() calls audit: remove unused !CONFIG_AUDITSYSCALL __audit_inode* stubs audit: add gfp parameter to audit_log_nfcfg audit: log nftables configuration change events audit: Use struct_size() helper in alloc_chunk
Diffstat (limited to 'security')
-rw-r--r--security/apparmor/audit.c10
-rw-r--r--security/apparmor/file.c25
-rw-r--r--security/apparmor/ipc.c46
-rw-r--r--security/apparmor/net.c14
-rw-r--r--security/lsm_audit.c9
5 files changed, 49 insertions, 55 deletions
diff --git a/security/apparmor/audit.c b/security/apparmor/audit.c
index 597732503815..f7e97c7e80f3 100644
--- a/security/apparmor/audit.c
+++ b/security/apparmor/audit.c
@@ -57,18 +57,16 @@ static void audit_pre(struct audit_buffer *ab, void *ca)
struct common_audit_data *sa = ca;
if (aa_g_audit_header) {
- audit_log_format(ab, "apparmor=");
- audit_log_string(ab, aa_audit_type[aad(sa)->type]);
+ audit_log_format(ab, "apparmor=\"%s\"",
+ aa_audit_type[aad(sa)->type]);
}
if (aad(sa)->op) {
- audit_log_format(ab, " operation=");
- audit_log_string(ab, aad(sa)->op);
+ audit_log_format(ab, " operation=\"%s\"", aad(sa)->op);
}
if (aad(sa)->info) {
- audit_log_format(ab, " info=");
- audit_log_string(ab, aad(sa)->info);
+ audit_log_format(ab, " info=\"%s\"", aad(sa)->info);
if (aad(sa)->error)
audit_log_format(ab, " error=%d", aad(sa)->error);
}
diff --git a/security/apparmor/file.c b/security/apparmor/file.c
index 9a2d14b7c9f8..92acf9a49405 100644
--- a/security/apparmor/file.c
+++ b/security/apparmor/file.c
@@ -35,20 +35,6 @@ static u32 map_mask_to_chr_mask(u32 mask)
}
/**
- * audit_file_mask - convert mask to permission string
- * @buffer: buffer to write string to (NOT NULL)
- * @mask: permission mask to convert
- */
-static void audit_file_mask(struct audit_buffer *ab, u32 mask)
-{
- char str[10];
-
- aa_perm_mask_to_str(str, sizeof(str), aa_file_perm_chrs,
- map_mask_to_chr_mask(mask));
- audit_log_string(ab, str);
-}
-
-/**
* file_audit_cb - call back for file specific audit fields
* @ab: audit_buffer (NOT NULL)
* @va: audit struct to audit values of (NOT NULL)
@@ -57,14 +43,17 @@ static void file_audit_cb(struct audit_buffer *ab, void *va)
{
struct common_audit_data *sa = va;
kuid_t fsuid = current_fsuid();
+ char str[10];
if (aad(sa)->request & AA_AUDIT_FILE_MASK) {
- audit_log_format(ab, " requested_mask=");
- audit_file_mask(ab, aad(sa)->request);
+ aa_perm_mask_to_str(str, sizeof(str), aa_file_perm_chrs,
+ map_mask_to_chr_mask(aad(sa)->request));
+ audit_log_format(ab, " requested_mask=\"%s\"", str);
}
if (aad(sa)->denied & AA_AUDIT_FILE_MASK) {
- audit_log_format(ab, " denied_mask=");
- audit_file_mask(ab, aad(sa)->denied);
+ aa_perm_mask_to_str(str, sizeof(str), aa_file_perm_chrs,
+ map_mask_to_chr_mask(aad(sa)->denied));
+ audit_log_format(ab, " denied_mask=\"%s\"", str);
}
if (aad(sa)->request & AA_AUDIT_FILE_MASK) {
audit_log_format(ab, " fsuid=%d",
diff --git a/security/apparmor/ipc.c b/security/apparmor/ipc.c
index 4ecedffbdd33..fe36d112aad9 100644
--- a/security/apparmor/ipc.c
+++ b/security/apparmor/ipc.c
@@ -20,25 +20,23 @@
/**
* audit_ptrace_mask - convert mask to permission string
- * @buffer: buffer to write string to (NOT NULL)
* @mask: permission mask to convert
+ *
+ * Returns: pointer to static string
*/
-static void audit_ptrace_mask(struct audit_buffer *ab, u32 mask)
+static const char *audit_ptrace_mask(u32 mask)
{
switch (mask) {
case MAY_READ:
- audit_log_string(ab, "read");
- break;
+ return "read";
case MAY_WRITE:
- audit_log_string(ab, "trace");
- break;
+ return "trace";
case AA_MAY_BE_READ:
- audit_log_string(ab, "readby");
- break;
+ return "readby";
case AA_MAY_BE_TRACED:
- audit_log_string(ab, "tracedby");
- break;
+ return "tracedby";
}
+ return "";
}
/* call back to audit ptrace fields */
@@ -47,12 +45,12 @@ static void audit_ptrace_cb(struct audit_buffer *ab, void *va)
struct common_audit_data *sa = va;
if (aad(sa)->request & AA_PTRACE_PERM_MASK) {
- audit_log_format(ab, " requested_mask=");
- audit_ptrace_mask(ab, aad(sa)->request);
+ audit_log_format(ab, " requested_mask=\"%s\"",
+ audit_ptrace_mask(aad(sa)->request));
if (aad(sa)->denied & AA_PTRACE_PERM_MASK) {
- audit_log_format(ab, " denied_mask=");
- audit_ptrace_mask(ab, aad(sa)->denied);
+ audit_log_format(ab, " denied_mask=\"%s\"",
+ audit_ptrace_mask(aad(sa)->denied));
}
}
audit_log_format(ab, " peer=");
@@ -142,16 +140,18 @@ static inline int map_signal_num(int sig)
}
/**
- * audit_file_mask - convert mask to permission string
- * @buffer: buffer to write string to (NOT NULL)
+ * audit_signal_mask - convert mask to permission string
* @mask: permission mask to convert
+ *
+ * Returns: pointer to static string
*/
-static void audit_signal_mask(struct audit_buffer *ab, u32 mask)
+static const char *audit_signal_mask(u32 mask)
{
if (mask & MAY_READ)
- audit_log_string(ab, "receive");
+ return "receive";
if (mask & MAY_WRITE)
- audit_log_string(ab, "send");
+ return "send";
+ return "";
}
/**
@@ -164,11 +164,11 @@ static void audit_signal_cb(struct audit_buffer *ab, void *va)
struct common_audit_data *sa = va;
if (aad(sa)->request & AA_SIGNAL_PERM_MASK) {
- audit_log_format(ab, " requested_mask=");
- audit_signal_mask(ab, aad(sa)->request);
+ audit_log_format(ab, " requested_mask=\"%s\"",
+ audit_signal_mask(aad(sa)->request));
if (aad(sa)->denied & AA_SIGNAL_PERM_MASK) {
- audit_log_format(ab, " denied_mask=");
- audit_signal_mask(ab, aad(sa)->denied);
+ audit_log_format(ab, " denied_mask=\"%s\"",
+ audit_signal_mask(aad(sa)->denied));
}
}
if (aad(sa)->signal == SIGUNKNOWN)
diff --git a/security/apparmor/net.c b/security/apparmor/net.c
index d8afc39f663a..fa0e85568450 100644
--- a/security/apparmor/net.c
+++ b/security/apparmor/net.c
@@ -72,16 +72,18 @@ void audit_net_cb(struct audit_buffer *ab, void *va)
{
struct common_audit_data *sa = va;
- audit_log_format(ab, " family=");
if (address_family_names[sa->u.net->family])
- audit_log_string(ab, address_family_names[sa->u.net->family]);
+ audit_log_format(ab, " family=\"%s\"",
+ address_family_names[sa->u.net->family]);
else
- audit_log_format(ab, "\"unknown(%d)\"", sa->u.net->family);
- audit_log_format(ab, " sock_type=");
+ audit_log_format(ab, " family=\"unknown(%d)\"",
+ sa->u.net->family);
if (sock_type_names[aad(sa)->net.type])
- audit_log_string(ab, sock_type_names[aad(sa)->net.type]);
+ audit_log_format(ab, " sock_type=\"%s\"",
+ sock_type_names[aad(sa)->net.type]);
else
- audit_log_format(ab, "\"unknown(%d)\"", aad(sa)->net.type);
+ audit_log_format(ab, " sock_type=\"unknown(%d)\"",
+ aad(sa)->net.type);
audit_log_format(ab, " protocol=%d", aad(sa)->net.protocol);
if (aad(sa)->request & NET_PERMS_MASK) {
diff --git a/security/lsm_audit.c b/security/lsm_audit.c
index 2d2bf49016f4..53d0d183db8f 100644
--- a/security/lsm_audit.c
+++ b/security/lsm_audit.c
@@ -241,6 +241,7 @@ static void dump_common_audit_data(struct audit_buffer *ab,
audit_log_untrustedstring(ab, inode->i_sb->s_id);
audit_log_format(ab, " ino=%lu", inode->i_ino);
}
+ audit_getcwd();
break;
}
case LSM_AUDIT_DATA_FILE: {
@@ -254,6 +255,7 @@ static void dump_common_audit_data(struct audit_buffer *ab,
audit_log_untrustedstring(ab, inode->i_sb->s_id);
audit_log_format(ab, " ino=%lu", inode->i_ino);
}
+ audit_getcwd();
break;
}
case LSM_AUDIT_DATA_IOCTL_OP: {
@@ -269,6 +271,7 @@ static void dump_common_audit_data(struct audit_buffer *ab,
}
audit_log_format(ab, " ioctlcmd=0x%hx", a->u.op->cmd);
+ audit_getcwd();
break;
}
case LSM_AUDIT_DATA_DENTRY: {
@@ -283,6 +286,7 @@ static void dump_common_audit_data(struct audit_buffer *ab,
audit_log_untrustedstring(ab, inode->i_sb->s_id);
audit_log_format(ab, " ino=%lu", inode->i_ino);
}
+ audit_getcwd();
break;
}
case LSM_AUDIT_DATA_INODE: {
@@ -300,6 +304,7 @@ static void dump_common_audit_data(struct audit_buffer *ab,
audit_log_format(ab, " dev=");
audit_log_untrustedstring(ab, inode->i_sb->s_id);
audit_log_format(ab, " ino=%lu", inode->i_ino);
+ audit_getcwd();
break;
}
case LSM_AUDIT_DATA_TASK: {
@@ -427,8 +432,8 @@ static void dump_common_audit_data(struct audit_buffer *ab,
a->u.ibendport->port);
break;
case LSM_AUDIT_DATA_LOCKDOWN:
- audit_log_format(ab, " lockdown_reason=");
- audit_log_string(ab, lockdown_reasons[a->u.reason]);
+ audit_log_format(ab, " lockdown_reason=\"%s\"",
+ lockdown_reasons[a->u.reason]);
break;
} /* switch (a->type) */
}