#define AUDIT_MAC_POLICY_LOAD 1403 /* Policy file load */
#define AUDIT_MAC_STATUS 1404 /* Changed enforcing,permissive,off */
#define AUDIT_MAC_CONFIG_CHANGE 1405 /* Changes to booleans */
-#define AUDIT_MAC_UNLBL_ACCEPT 1406 /* NetLabel: allow unlabeled traffic */
-#define AUDIT_MAC_UNLBL_DENY 1407 /* NetLabel: deny unlabeled traffic */
-#define AUDIT_MAC_CIPSOV4_ADD 1408 /* NetLabel: add CIPSOv4 DOI entry */
-#define AUDIT_MAC_CIPSOV4_DEL 1409 /* NetLabel: del CIPSOv4 DOI entry */
-#define AUDIT_MAC_MAP_ADD 1410 /* NetLabel: add LSM domain mapping */
-#define AUDIT_MAC_MAP_DEL 1411 /* NetLabel: del LSM domain mapping */
+#define AUDIT_MAC_UNLBL_ALLOW 1406 /* NetLabel: allow unlabeled traffic */
+#define AUDIT_MAC_CIPSOV4_ADD 1407 /* NetLabel: add CIPSOv4 DOI entry */
+#define AUDIT_MAC_CIPSOV4_DEL 1408 /* NetLabel: del CIPSOv4 DOI entry */
+#define AUDIT_MAC_MAP_ADD 1409 /* NetLabel: add LSM domain mapping */
+#define AUDIT_MAC_MAP_DEL 1410 /* NetLabel: del LSM domain mapping */
#define AUDIT_FIRST_KERN_ANOM_MSG 1700
#define AUDIT_LAST_KERN_ANOM_MSG 1799
#ifdef CONFIG_NETLABEL
int cipso_v4_doi_add(struct cipso_v4_doi *doi_def);
int cipso_v4_doi_remove(u32 doi,
- u32 audit_secid,
+ struct netlbl_audit *audit_info,
void (*callback) (struct rcu_head * head));
struct cipso_v4_doi *cipso_v4_doi_getdef(u32 doi);
int cipso_v4_doi_walk(u32 *skip_cnt,
}
static inline int cipso_v4_doi_remove(u32 doi,
- u32 audit_secid,
+ struct netlbl_audit *audit_info,
void (*callback) (struct rcu_head * head))
{
return 0;
*
*/
+/* NetLabel audit information */
+struct netlbl_audit {
+ u32 secid;
+ uid_t loginuid;
+};
+
/* Domain mapping definition struct */
struct netlbl_dom_map;
/* Domain mapping operations */
-int netlbl_domhsh_remove(const char *domain, u32 audit_secid);
+int netlbl_domhsh_remove(const char *domain, struct netlbl_audit *audit_info);
/* LSM security attributes */
struct netlbl_lsm_cache {
*
*/
int cipso_v4_doi_remove(u32 doi,
- u32 audit_secid,
+ struct netlbl_audit *audit_info,
void (*callback) (struct rcu_head * head))
{
struct cipso_v4_doi *doi_def;
list_for_each_entry_rcu(dom_iter, &doi_def->dom_list, list)
if (dom_iter->valid)
netlbl_domhsh_remove(dom_iter->domain,
- audit_secid);
+ audit_info);
cipso_v4_cache_invalidate();
rcu_read_unlock();
u32 doi;
const char *type_str = "(unknown)";
struct audit_buffer *audit_buf;
+ struct netlbl_audit audit_info;
if (!info->attrs[NLBL_CIPSOV4_A_DOI] ||
!info->attrs[NLBL_CIPSOV4_A_MTYPE])
return -EINVAL;
+ doi = nla_get_u32(info->attrs[NLBL_CIPSOV4_A_DOI]);
+ netlbl_netlink_auditinfo(skb, &audit_info);
+
type = nla_get_u32(info->attrs[NLBL_CIPSOV4_A_MTYPE]);
switch (type) {
case CIPSO_V4_MAP_STD:
break;
}
- if (ret_val == 0) {
- doi = nla_get_u32(info->attrs[NLBL_CIPSOV4_A_DOI]);
- audit_buf = netlbl_audit_start_common(AUDIT_MAC_CIPSOV4_ADD,
- NETLINK_CB(skb).sid);
- audit_log_format(audit_buf, " doi=%u type=%s", doi, type_str);
- audit_log_end(audit_buf);
- }
+ audit_buf = netlbl_audit_start_common(AUDIT_MAC_CIPSOV4_ADD,
+ &audit_info);
+ audit_log_format(audit_buf,
+ " cipso_doi=%u cipso_type=%s res=%u",
+ doi,
+ type_str,
+ ret_val == 0 ? 1 : 0);
+ audit_log_end(audit_buf);
return ret_val;
}
int ret_val = -EINVAL;
u32 doi = 0;
struct audit_buffer *audit_buf;
+ struct netlbl_audit audit_info;
- if (info->attrs[NLBL_CIPSOV4_A_DOI]) {
- doi = nla_get_u32(info->attrs[NLBL_CIPSOV4_A_DOI]);
- ret_val = cipso_v4_doi_remove(doi,
- NETLINK_CB(skb).sid,
- netlbl_cipsov4_doi_free);
- }
+ if (!info->attrs[NLBL_CIPSOV4_A_DOI])
+ return -EINVAL;
- if (ret_val == 0) {
- audit_buf = netlbl_audit_start_common(AUDIT_MAC_CIPSOV4_DEL,
- NETLINK_CB(skb).sid);
- audit_log_format(audit_buf, " doi=%u", doi);
- audit_log_end(audit_buf);
- }
+ doi = nla_get_u32(info->attrs[NLBL_CIPSOV4_A_DOI]);
+ netlbl_netlink_auditinfo(skb, &audit_info);
+
+ ret_val = cipso_v4_doi_remove(doi,
+ &audit_info,
+ netlbl_cipsov4_doi_free);
+
+ audit_buf = netlbl_audit_start_common(AUDIT_MAC_CIPSOV4_DEL,
+ &audit_info);
+ audit_log_format(audit_buf,
+ " cipso_doi=%u res=%u",
+ doi,
+ ret_val == 0 ? 1 : 0);
+ audit_log_end(audit_buf);
return ret_val;
}
/**
* 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
+ * @audit_info: NetLabel audit information
*
* Description:
* Adds a new entry to the domain hash table and handles any updates to the
* negative on failure.
*
*/
-int netlbl_domhsh_add(struct netlbl_dom_map *entry, u32 audit_secid)
+int netlbl_domhsh_add(struct netlbl_dom_map *entry,
+ struct netlbl_audit *audit_info)
{
int ret_val;
u32 bkt;
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);
+
+ if (entry->domain != NULL)
+ audit_domain = entry->domain;
+ else
+ audit_domain = "(default)";
+ audit_buf = netlbl_audit_start_common(AUDIT_MAC_MAP_ADD, audit_info);
+ audit_log_format(audit_buf, " nlbl_domain=%s", audit_domain);
+ switch (entry->type) {
+ case NETLBL_NLTYPE_UNLABELED:
+ audit_log_format(audit_buf, " nlbl_protocol=unlbl");
+ break;
+ case NETLBL_NLTYPE_CIPSOV4:
+ audit_log_format(audit_buf,
+ " nlbl_protocol=cipsov4 cipso_doi=%u",
+ entry->type_def.cipsov4->doi);
+ break;
}
+ audit_log_format(audit_buf, " res=%u", ret_val == 0 ? 1 : 0);
+ audit_log_end(audit_buf);
+
rcu_read_unlock();
if (ret_val != 0) {
/**
* 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
+ * @audit_info: NetLabel audit information
*
* Description:
* Adds a new default entry to the domain hash table and handles any updates
* negative on failure.
*
*/
-int netlbl_domhsh_add_default(struct netlbl_dom_map *entry, u32 audit_secid)
+int netlbl_domhsh_add_default(struct netlbl_dom_map *entry,
+ struct netlbl_audit *audit_info)
{
- return netlbl_domhsh_add(entry, audit_secid);
+ return netlbl_domhsh_add(entry, audit_info);
}
/**
* 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
+ * @audit_info: NetLabel audit information
*
* Description:
* Removes an entry from the domain hash table and handles any updates to the
* negative on failure.
*
*/
-int netlbl_domhsh_remove(const char *domain, u32 audit_secid)
+int netlbl_domhsh_remove(const char *domain, struct netlbl_audit *audit_info)
{
int ret_val = -ENOENT;
struct netlbl_dom_map *entry;
ret_val = -ENOENT;
spin_unlock(&netlbl_domhsh_def_lock);
}
- 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);
+ if (entry->domain != NULL)
+ audit_domain = entry->domain;
+ else
+ audit_domain = "(default)";
+ audit_buf = netlbl_audit_start_common(AUDIT_MAC_MAP_DEL, audit_info);
+ audit_log_format(audit_buf,
+ " nlbl_domain=%s res=%u",
+ audit_domain,
+ ret_val == 0 ? 1 : 0);
+ audit_log_end(audit_buf);
+
+ if (ret_val == 0)
call_rcu(&entry->rcu, netlbl_domhsh_free_entry);
- }
remove_return:
rcu_read_unlock();
/**
* netlbl_domhsh_remove_default - Removes the default entry from the table
- * @audit_secid: the LSM secid to use in the audit message
+ * @audit_info: NetLabel audit information
*
* Description:
* Removes/resets the default entry for the domain hash table and handles any
* success, non-zero on failure.
*
*/
-int netlbl_domhsh_remove_default(u32 audit_secid)
+int netlbl_domhsh_remove_default(struct netlbl_audit *audit_info)
{
- return netlbl_domhsh_remove(NULL, audit_secid);
+ return netlbl_domhsh_remove(NULL, audit_info);
}
/**
int netlbl_domhsh_init(u32 size);
/* Manipulate the domain hash table */
-int netlbl_domhsh_add(struct netlbl_dom_map *entry, u32 audit_secid);
-int netlbl_domhsh_add_default(struct netlbl_dom_map *entry, u32 audit_secid);
-int netlbl_domhsh_remove_default(u32 audit_secid);
+int netlbl_domhsh_add(struct netlbl_dom_map *entry,
+ struct netlbl_audit *audit_info);
+int netlbl_domhsh_add_default(struct netlbl_dom_map *entry,
+ struct netlbl_audit *audit_info);
+int netlbl_domhsh_remove_default(struct netlbl_audit *audit_info);
struct netlbl_dom_map *netlbl_domhsh_getentry(const char *domain);
int netlbl_domhsh_walk(u32 *skip_bkt,
u32 *skip_chain,
struct netlbl_dom_map *entry = NULL;
size_t tmp_size;
u32 tmp_val;
+ struct netlbl_audit audit_info;
if (!info->attrs[NLBL_MGMT_A_DOMAIN] ||
!info->attrs[NLBL_MGMT_A_PROTOCOL])
goto add_failure;
+ netlbl_netlink_auditinfo(skb, &audit_info);
+
entry = kzalloc(sizeof(*entry), GFP_KERNEL);
if (entry == NULL) {
ret_val = -ENOMEM;
switch (entry->type) {
case NETLBL_NLTYPE_UNLABELED:
- ret_val = netlbl_domhsh_add(entry, NETLINK_CB(skb).sid);
+ ret_val = netlbl_domhsh_add(entry, &audit_info);
break;
case NETLBL_NLTYPE_CIPSOV4:
if (!info->attrs[NLBL_MGMT_A_CV4DOI])
rcu_read_unlock();
goto add_failure;
}
- ret_val = netlbl_domhsh_add(entry, NETLINK_CB(skb).sid);
+ ret_val = netlbl_domhsh_add(entry, &audit_info);
rcu_read_unlock();
break;
default:
static int netlbl_mgmt_remove(struct sk_buff *skb, struct genl_info *info)
{
char *domain;
+ struct netlbl_audit audit_info;
if (!info->attrs[NLBL_MGMT_A_DOMAIN])
return -EINVAL;
+ netlbl_netlink_auditinfo(skb, &audit_info);
+
domain = nla_data(info->attrs[NLBL_MGMT_A_DOMAIN]);
- return netlbl_domhsh_remove(domain, NETLINK_CB(skb).sid);
+ return netlbl_domhsh_remove(domain, &audit_info);
}
/**
int ret_val = -EINVAL;
struct netlbl_dom_map *entry = NULL;
u32 tmp_val;
+ struct netlbl_audit audit_info;
if (!info->attrs[NLBL_MGMT_A_PROTOCOL])
goto adddef_failure;
+ netlbl_netlink_auditinfo(skb, &audit_info);
+
entry = kzalloc(sizeof(*entry), GFP_KERNEL);
if (entry == NULL) {
ret_val = -ENOMEM;
switch (entry->type) {
case NETLBL_NLTYPE_UNLABELED:
- ret_val = netlbl_domhsh_add_default(entry,
- NETLINK_CB(skb).sid);
+ ret_val = netlbl_domhsh_add_default(entry, &audit_info);
break;
case NETLBL_NLTYPE_CIPSOV4:
if (!info->attrs[NLBL_MGMT_A_CV4DOI])
rcu_read_unlock();
goto adddef_failure;
}
- ret_val = netlbl_domhsh_add_default(entry,
- NETLINK_CB(skb).sid);
+ ret_val = netlbl_domhsh_add_default(entry, &audit_info);
rcu_read_unlock();
break;
default:
*/
static int netlbl_mgmt_removedef(struct sk_buff *skb, struct genl_info *info)
{
- return netlbl_domhsh_remove_default(NETLINK_CB(skb).sid);
+ struct netlbl_audit audit_info;
+
+ netlbl_netlink_auditinfo(skb, &audit_info);
+
+ return netlbl_domhsh_remove_default(&audit_info);
}
/**
/**
* netlbl_unlabel_acceptflg_set - Set the unlabeled accept flag
* @value: desired value
- * @audit_secid: the LSM secid to use in the audit message
+ * @audit_info: NetLabel audit information
*
* Description:
* Set the value of the unlabeled accept flag to @value.
*
*/
-static void netlbl_unlabel_acceptflg_set(u8 value, u32 audit_secid)
+static void netlbl_unlabel_acceptflg_set(u8 value,
+ struct netlbl_audit *audit_info)
{
+ struct audit_buffer *audit_buf;
+ u8 old_val;
+
+ old_val = atomic_read(&netlabel_unlabel_accept_flg);
atomic_set(&netlabel_unlabel_accept_flg, value);
- netlbl_audit_nomsg((value ?
- AUDIT_MAC_UNLBL_ACCEPT : AUDIT_MAC_UNLBL_DENY),
- audit_secid);
+
+ audit_buf = netlbl_audit_start_common(AUDIT_MAC_UNLBL_ALLOW,
+ audit_info);
+ audit_log_format(audit_buf, " unlbl_accept=%u old=%u", value, old_val);
+ audit_log_end(audit_buf);
}
/*
static int netlbl_unlabel_accept(struct sk_buff *skb, struct genl_info *info)
{
u8 value;
+ struct netlbl_audit audit_info;
if (info->attrs[NLBL_UNLABEL_A_ACPTFLG]) {
value = nla_get_u8(info->attrs[NLBL_UNLABEL_A_ACPTFLG]);
if (value == 1 || value == 0) {
- netlbl_unlabel_acceptflg_set(value,
- NETLINK_CB(skb).sid);
+ netlbl_netlink_auditinfo(skb, &audit_info);
+ netlbl_unlabel_acceptflg_set(value, &audit_info);
return 0;
}
}
{
int ret_val;
struct netlbl_dom_map *entry;
- u32 secid;
+ struct netlbl_audit audit_info;
- security_task_getsecid(current, &secid);
+ /* Only the kernel is allowed to call this function and the only time
+ * it is called is at bootup before the audit subsystem is reporting
+ * messages so don't worry to much about these values. */
+ security_task_getsecid(current, &audit_info.secid);
+ audit_info.loginuid = 0;
entry = kzalloc(sizeof(*entry), GFP_KERNEL);
if (entry == NULL)
return -ENOMEM;
entry->type = NETLBL_NLTYPE_UNLABELED;
- ret_val = netlbl_domhsh_add_default(entry, secid);
+ ret_val = netlbl_domhsh_add_default(entry, &audit_info);
if (ret_val != 0)
return ret_val;
- netlbl_unlabel_acceptflg_set(1, secid);
+ netlbl_unlabel_acceptflg_set(1, &audit_info);
return 0;
}
/**
* netlbl_audit_start_common - Start an audit message
* @type: audit message type
- * @secid: LSM context ID
+ * @audit_info: NetLabel audit information
*
* Description:
* Start an audit message using the type specified in @type and fill the audit
* a pointer to the audit buffer on success, NULL on failure.
*
*/
-struct audit_buffer *netlbl_audit_start_common(int type, u32 secid)
+struct audit_buffer *netlbl_audit_start_common(int type,
+ struct netlbl_audit *audit_info)
{
struct audit_context *audit_ctx = current->audit_context;
struct audit_buffer *audit_buf;
- uid_t audit_loginuid;
- const char *audit_tty;
- char audit_comm[sizeof(current->comm)];
- struct vm_area_struct *vma;
char *secctx;
u32 secctx_len;
if (audit_buf == NULL)
return NULL;
- audit_loginuid = audit_get_loginuid(audit_ctx);
- if (current->signal &&
- current->signal->tty &&
- current->signal->tty->name)
- audit_tty = current->signal->tty->name;
- else
- audit_tty = "(none)";
- get_task_comm(audit_comm, current);
+ audit_log_format(audit_buf, "netlabel: auid=%u", audit_info->loginuid);
- audit_log_format(audit_buf,
- "netlabel: auid=%u uid=%u tty=%s pid=%d",
- audit_loginuid,
- current->uid,
- audit_tty,
- current->pid);
- audit_log_format(audit_buf, " comm=");
- audit_log_untrustedstring(audit_buf, audit_comm);
- if (current->mm) {
- down_read(¤t->mm->mmap_sem);
- vma = current->mm->mmap;
- while (vma) {
- if ((vma->vm_flags & VM_EXECUTABLE) &&
- vma->vm_file) {
- audit_log_d_path(audit_buf,
- " exe=",
- vma->vm_file->f_dentry,
- vma->vm_file->f_vfsmnt);
- break;
- }
- vma = vma->vm_next;
- }
- up_read(¤t->mm->mmap_sem);
- }
-
- if (secid != 0 &&
- security_secid_to_secctx(secid, &secctx, &secctx_len) == 0)
+ if (audit_info->secid != 0 &&
+ security_secid_to_secctx(audit_info->secid,
+ &secctx,
+ &secctx_len) == 0)
audit_log_format(audit_buf, " subj=%s", secctx);
return audit_buf;
}
-
-/**
- * netlbl_audit_nomsg - Send an audit message without additional text
- * @type: audit message type
- * @secid: LSM context ID
- *
- * Description:
- * Send an audit message with only the common NetLabel audit fields.
- *
- */
-void netlbl_audit_nomsg(int type, u32 secid)
-{
- struct audit_buffer *audit_buf;
-
- audit_buf = netlbl_audit_start_common(type, secid);
- audit_log_end(audit_buf);
-}
NETLBL_PROTO_VERSION);
}
+/**
+ * netlbl_netlink_auditinfo - Fetch the audit information from a NETLINK msg
+ * @skb: the packet
+ * @audit_info: NetLabel audit information
+ */
+static inline void netlbl_netlink_auditinfo(struct sk_buff *skb,
+ struct netlbl_audit *audit_info)
+{
+ audit_info->secid = NETLINK_CB(skb).sid;
+ audit_info->loginuid = NETLINK_CB(skb).loginuid;
+}
+
/* NetLabel NETLINK I/O functions */
int netlbl_netlink_init(void);
/* NetLabel Audit Functions */
-struct audit_buffer *netlbl_audit_start_common(int type, u32 secid);
-void netlbl_audit_nomsg(int type, u32 secid);
+struct audit_buffer *netlbl_audit_start_common(int type,
+ struct netlbl_audit *audit_info);
#endif
projects / GitHub / LineageOS / G12 / android_kernel_amlogic_linux-4.9.git / commitdiff