#include <linux/types.h>
#include <linux/skbuff.h>
#include <linux/capability.h>
+#include <linux/audit.h>
#include <net/netlink.h>
#include <net/genetlink.h>
#include <net/netlabel.h>
/* NetLabel NETLINK helper functions */
/**
- * netlbl_netlink_cap_check - Check the NETLINK msg capabilities
- * @skb: the NETLINK buffer
- * @req_cap: the required capability
- *
- * Description:
- * Check the NETLINK buffer's capabilities against the required capabilities.
- * Returns zero on success, negative values on failure.
- *
- */
-static inline int netlbl_netlink_cap_check(const struct sk_buff *skb,
- kernel_cap_t req_cap)
-{
- if (cap_raised(NETLINK_CB(skb).eff_cap, req_cap))
- return 0;
- return -EPERM;
-}
-
-/**
- * netlbl_getinc_u8 - Read a u8 value from a nlattr stream and move on
- * @nla: the attribute
- * @rem_len: remaining length
- *
- * Description:
- * Return a u8 value pointed to by @nla and advance it to the next attribute.
- *
- */
-static inline u8 netlbl_getinc_u8(struct nlattr **nla, int *rem_len)
-{
- u8 val = nla_get_u8(*nla);
- *nla = nla_next(*nla, rem_len);
- return val;
-}
-
-/**
- * netlbl_getinc_u16 - Read a u16 value from a nlattr stream and move on
- * @nla: the attribute
- * @rem_len: remaining length
- *
- * Description:
- * Return a u16 value pointed to by @nla and advance it to the next attribute.
- *
- */
-static inline u16 netlbl_getinc_u16(struct nlattr **nla, int *rem_len)
-{
- u16 val = nla_get_u16(*nla);
- *nla = nla_next(*nla, rem_len);
- return val;
-}
-
-/**
- * netlbl_getinc_u32 - Read a u32 value from a nlattr stream and move on
- * @nla: the attribute
- * @rem_len: remaining length
- *
- * Description:
- * Return a u32 value pointed to by @nla and advance it to the next attribute.
- *
- */
-static inline u32 netlbl_getinc_u32(struct nlattr **nla, int *rem_len)
-{
- u32 val = nla_get_u32(*nla);
- *nla = nla_next(*nla, rem_len);
- return val;
-}
-
-/**
- * netlbl_netlink_hdr_put - Write the NETLINK buffers into a sk_buff
+ * netlbl_netlink_auditinfo - Fetch the audit information from a NETLINK msg
* @skb: the packet
- * @pid: the PID of the receipient
- * @seq: the sequence number
- * @type: the generic NETLINK message family type
- * @cmd: command
- *
- * Description:
- * Write both a NETLINK nlmsghdr structure and a Generic NETLINK genlmsghdr
- * struct to the packet. Returns a pointer to the start of the payload buffer
- * on success or NULL on failure.
- *
+ * @audit_info: NetLabel audit information
*/
-static inline void *netlbl_netlink_hdr_put(struct sk_buff *skb,
- u32 pid,
- u32 seq,
- int type,
- u8 cmd)
+static inline void netlbl_netlink_auditinfo(struct sk_buff *skb,
+ struct netlbl_audit *audit_info)
{
- return genlmsg_put(skb,
- pid,
- seq,
- type,
- 0,
- 0,
- cmd,
- NETLBL_PROTO_VERSION);
+ audit_info->secid = NETLINK_CB(skb).sid;
+ audit_info->loginuid = NETLINK_CB(skb).loginuid;
+ audit_info->sessionid = NETLINK_CB(skb).sessionid;
}
-/**
- * netlbl_netlink_hdr_push - Write the NETLINK buffers into a sk_buff
- * @skb: the packet
- * @pid: the PID of the receipient
- * @seq: the sequence number
- * @type: the generic NETLINK message family type
- * @cmd: command
- *
- * Description:
- * Write both a NETLINK nlmsghdr structure and a Generic NETLINK genlmsghdr
- * struct to the packet.
- *
- */
-static inline void netlbl_netlink_hdr_push(struct sk_buff *skb,
- u32 pid,
- u32 seq,
- int type,
- u8 cmd)
-
-{
- struct nlmsghdr *nlh;
- struct genlmsghdr *hdr;
-
- nlh = (struct nlmsghdr *)skb_push(skb, NLMSG_SPACE(GENL_HDRLEN));
- nlh->nlmsg_type = type;
- nlh->nlmsg_len = skb->len;
- nlh->nlmsg_flags = 0;
- nlh->nlmsg_pid = pid;
- nlh->nlmsg_seq = seq;
-
- hdr = nlmsg_data(nlh);
- hdr->cmd = cmd;
- hdr->version = NETLBL_PROTO_VERSION;
- hdr->reserved = 0;
-}
-
-/**
- * netlbl_netlink_payload_len - Return the length of the payload
- * @skb: the NETLINK buffer
- *
- * Description:
- * This function returns the length of the NetLabel payload.
- *
- */
-static inline u32 netlbl_netlink_payload_len(const struct sk_buff *skb)
-{
- return nlmsg_len((struct nlmsghdr *)skb->data) - GENL_HDRLEN;
-}
-
-/**
- * netlbl_netlink_payload_data - Returns a pointer to the start of the payload
- * @skb: the NETLINK buffer
- *
- * Description:
- * This function returns a pointer to the start of the NetLabel payload.
- *
- */
-static inline void *netlbl_netlink_payload_data(const struct sk_buff *skb)
-{
- return (unsigned char *)nlmsg_data((struct nlmsghdr *)skb->data) +
- GENL_HDRLEN;
-}
-
-/* NetLabel common protocol functions */
-
-void netlbl_netlink_send_ack(const struct genl_info *info,
- u32 genl_family,
- u8 ack_cmd,
- u32 ret_code);
-
/* NetLabel NETLINK I/O functions */
int netlbl_netlink_init(void);
-int netlbl_netlink_snd(struct sk_buff *skb, u32 pid);
-int netlbl_netlink_snd_multicast(struct sk_buff *skb, u32 pid, u32 group);
+
+/* NetLabel Audit Functions */
+
+struct audit_buffer *netlbl_audit_start_common(int type,
+ struct netlbl_audit *audit_info);
#endif
projects / linux-drm-fsl-dcu.git / blobdiff