diff options
author | Paul Moore <paul.moore@hp.com> | 2006-09-28 23:51:47 +0200 |
---|---|---|
committer | David S. Miller <davem@sunset.davemloft.net> | 2006-09-29 03:03:09 +0200 |
commit | 32f50cdee666333168b5203c7864bede159f789e (patch) | |
tree | c4989cc2521551714f656d60f6b895232ffdeda6 /net/netlabel/netlabel_domainhash.c | |
parent | [TCP]: Fix and simplify microsecond rtt sampling (diff) | |
download | linux-32f50cdee666333168b5203c7864bede159f789e.tar.xz linux-32f50cdee666333168b5203c7864bede159f789e.zip |
[NetLabel]: add audit support for configuration changes
This patch adds audit support to NetLabel, including six new audit message
types shown below.
#define AUDIT_MAC_UNLBL_ACCEPT 1406
#define AUDIT_MAC_UNLBL_DENY 1407
#define AUDIT_MAC_CIPSOV4_ADD 1408
#define AUDIT_MAC_CIPSOV4_DEL 1409
#define AUDIT_MAC_MAP_ADD 1410
#define AUDIT_MAC_MAP_DEL 1411
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netlabel/netlabel_domainhash.c')
-rw-r--r-- | net/netlabel/netlabel_domainhash.c | 54 |
1 files changed, 47 insertions, 7 deletions
diff --git a/net/netlabel/netlabel_domainhash.c b/net/netlabel/netlabel_domainhash.c index f56d7a8ac7b7..d64e2ae3b129 100644 --- a/net/netlabel/netlabel_domainhash.c +++ b/net/netlabel/netlabel_domainhash.c @@ -35,12 +35,14 @@ #include <linux/skbuff.h> #include <linux/spinlock.h> #include <linux/string.h> +#include <linux/audit.h> #include <net/netlabel.h> #include <net/cipso_ipv4.h> #include <asm/bug.h> #include "netlabel_mgmt.h" #include "netlabel_domainhash.h" +#include "netlabel_user.h" struct netlbl_domhsh_tbl { struct list_head *tbl; @@ -186,6 +188,7 @@ int netlbl_domhsh_init(u32 size) /** * netlbl_domhsh_add - Adds a entry to the domain hash table * @entry: the entry to add + * @audit_secid: the LSM secid to use in the audit message * * Description: * Adds a new entry to the domain hash table and handles any updates to the @@ -193,10 +196,12 @@ int netlbl_domhsh_init(u32 size) * negative on failure. * */ -int netlbl_domhsh_add(struct netlbl_dom_map *entry) +int netlbl_domhsh_add(struct netlbl_dom_map *entry, u32 audit_secid) { int ret_val; u32 bkt; + struct audit_buffer *audit_buf; + char *audit_domain; switch (entry->type) { case NETLBL_NLTYPE_UNLABELED: @@ -236,6 +241,26 @@ int netlbl_domhsh_add(struct netlbl_dom_map *entry) spin_unlock(&netlbl_domhsh_def_lock); } else ret_val = -EINVAL; + if (ret_val == 0) { + if (entry->domain != NULL) + audit_domain = entry->domain; + else + audit_domain = "(default)"; + audit_buf = netlbl_audit_start_common(AUDIT_MAC_MAP_ADD, + audit_secid); + audit_log_format(audit_buf, " domain=%s", audit_domain); + switch (entry->type) { + case NETLBL_NLTYPE_UNLABELED: + audit_log_format(audit_buf, " protocol=unlbl"); + break; + case NETLBL_NLTYPE_CIPSOV4: + audit_log_format(audit_buf, + " protocol=cipsov4 doi=%u", + entry->type_def.cipsov4->doi); + break; + } + audit_log_end(audit_buf); + } rcu_read_unlock(); if (ret_val != 0) { @@ -254,6 +279,7 @@ int netlbl_domhsh_add(struct netlbl_dom_map *entry) /** * netlbl_domhsh_add_default - Adds the default entry to the domain hash table * @entry: the entry to add + * @audit_secid: the LSM secid to use in the audit message * * Description: * Adds a new default entry to the domain hash table and handles any updates @@ -261,14 +287,15 @@ int netlbl_domhsh_add(struct netlbl_dom_map *entry) * negative on failure. * */ -int netlbl_domhsh_add_default(struct netlbl_dom_map *entry) +int netlbl_domhsh_add_default(struct netlbl_dom_map *entry, u32 audit_secid) { - return netlbl_domhsh_add(entry); + return netlbl_domhsh_add(entry, audit_secid); } /** * netlbl_domhsh_remove - Removes an entry from the domain hash table * @domain: the domain to remove + * @audit_secid: the LSM secid to use in the audit message * * Description: * Removes an entry from the domain hash table and handles any updates to the @@ -276,10 +303,12 @@ int netlbl_domhsh_add_default(struct netlbl_dom_map *entry) * negative on failure. * */ -int netlbl_domhsh_remove(const char *domain) +int netlbl_domhsh_remove(const char *domain, u32 audit_secid) { int ret_val = -ENOENT; struct netlbl_dom_map *entry; + struct audit_buffer *audit_buf; + char *audit_domain; rcu_read_lock(); if (domain != NULL) @@ -316,8 +345,18 @@ int netlbl_domhsh_remove(const char *domain) ret_val = -ENOENT; spin_unlock(&netlbl_domhsh_def_lock); } - if (ret_val == 0) + if (ret_val == 0) { + if (entry->domain != NULL) + audit_domain = entry->domain; + else + audit_domain = "(default)"; + audit_buf = netlbl_audit_start_common(AUDIT_MAC_MAP_DEL, + audit_secid); + audit_log_format(audit_buf, " domain=%s", audit_domain); + audit_log_end(audit_buf); + call_rcu(&entry->rcu, netlbl_domhsh_free_entry); + } remove_return: rcu_read_unlock(); @@ -326,6 +365,7 @@ remove_return: /** * netlbl_domhsh_remove_default - Removes the default entry from the table + * @audit_secid: the LSM secid to use in the audit message * * Description: * Removes/resets the default entry for the domain hash table and handles any @@ -333,9 +373,9 @@ remove_return: * success, non-zero on failure. * */ -int netlbl_domhsh_remove_default(void) +int netlbl_domhsh_remove_default(u32 audit_secid) { - return netlbl_domhsh_remove(NULL); + return netlbl_domhsh_remove(NULL, audit_secid); } /** |