/**
* netlbl_audit_start_common - Start an audit message
* @type: audit message type
* @audit_info: NetLabel audit information
*
* Description:
* Start an audit message using the type specified in @type and fill the audit
* message with some fields common to all NetLabel audit messages. Returns
* a pointer to the audit buffer on success, NULL on failure.
*
*/
struct audit_buffer *netlbl_audit_start_common(int type,
struct netlbl_audit *audit_info)
{
struct audit_buffer *audit_buf;
char *secctx;
u32 secctx_len;
if (audit_enabled == 0)
return NULL;
audit_buf = audit_log_start(audit_context(), GFP_ATOMIC, type);
if (audit_buf == NULL)
return NULL;
audit_log_format(audit_buf, "netlabel: auid=%u ses=%u",
from_kuid(&init_user_ns, audit_info->loginuid),
audit_info->sessionid);
if (audit_info->secid != 0 &&
security_secid_to_secctx(audit_info->secid,
&secctx,
&secctx_len) == 0) {
audit_log_format(audit_buf, " subj=%s", secctx);
security_release_secctx(secctx, secctx_len);
}
return audit_buf;
}
static void ip_cmsg_recv_security(struct msghdr *msg, struct sk_buff *skb)
{
char *secdata;
u32 seclen, secid;
int err;
err = security_socket_getpeersec_dgram(NULL, skb, &secid);
if (err)
return;
err = security_secid_to_secctx(secid, &secdata, &seclen);
if (err)
return;
put_cmsg(msg, SOL_IP, SCM_SECURITY, seclen, secdata);
security_release_secctx(secdata, seclen);
}
/**
* netlbl_audit_start_common - Start an audit message
* @type: audit message type
* @audit_info: NetLabel audit information
*
* Description:
* Start an audit message using the type specified in @type and fill the audit
* message with some fields common to all NetLabel audit messages. Returns
* a pointer to the audit buffer on success, NULL on failure.
*
*/
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;
char *secctx;
u32 secctx_len;
audit_buf = audit_log_start(audit_ctx, GFP_ATOMIC, type);
if (audit_buf == NULL)
return NULL;
audit_log_format(audit_buf, "netlabel: auid=%u", audit_info->loginuid);
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;
}
