From 32f50cdee666333168b5203c7864bede159f789e Mon Sep 17 00:00:00 2001 From: Paul Moore Date: Thu, 28 Sep 2006 14:51:47 -0700 Subject: [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 Acked-by: James Morris Signed-off-by: David S. Miller --- net/netlabel/netlabel_domainhash.c | 54 +++++++++++++++++++++++++++++++++----- 1 file changed, 47 insertions(+), 7 deletions(-) (limited to 'net/netlabel/netlabel_domainhash.c') diff --git a/net/netlabel/netlabel_domainhash.c b/net/netlabel/netlabel_domainhash.c index f56d7a8ac7b..d64e2ae3b12 100644 --- a/net/netlabel/netlabel_domainhash.c +++ b/net/netlabel/netlabel_domainhash.c @@ -35,12 +35,14 @@ #include #include #include +#include #include #include #include #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); } /** -- cgit v1.2.3