summaryrefslogtreecommitdiff
path: root/include/net/netlink.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/net/netlink.h')
-rw-r--r--include/net/netlink.h124
1 files changed, 111 insertions, 13 deletions
diff --git a/include/net/netlink.h b/include/net/netlink.h
index 785f37a3b44e..9690b0f6698a 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -98,6 +98,10 @@
* nla_put_u16(skb, type, value) add u16 attribute to skb
* nla_put_u32(skb, type, value) add u32 attribute to skb
* nla_put_u64(skb, type, value) add u64 attribute to skb
+ * nla_put_s8(skb, type, value) add s8 attribute to skb
+ * nla_put_s16(skb, type, value) add s16 attribute to skb
+ * nla_put_s32(skb, type, value) add s32 attribute to skb
+ * nla_put_s64(skb, type, value) add s64 attribute to skb
* nla_put_string(skb, type, str) add string attribute to skb
* nla_put_flag(skb, type) add flag attribute to skb
* nla_put_msecs(skb, type, jiffies) add msecs attribute to skb
@@ -121,6 +125,10 @@
* nla_get_u16(nla) get payload for a u16 attribute
* nla_get_u32(nla) get payload for a u32 attribute
* nla_get_u64(nla) get payload for a u64 attribute
+ * nla_get_s8(nla) get payload for a s8 attribute
+ * nla_get_s16(nla) get payload for a s16 attribute
+ * nla_get_s32(nla) get payload for a s32 attribute
+ * nla_get_s64(nla) get payload for a s64 attribute
* nla_get_flag(nla) return 1 if flag is true
* nla_get_msecs(nla) get payload for a msecs attribute
*
@@ -160,6 +168,10 @@ enum {
NLA_NESTED_COMPAT,
NLA_NUL_STRING,
NLA_BINARY,
+ NLA_S8,
+ NLA_S16,
+ NLA_S32,
+ NLA_S64,
__NLA_TYPE_MAX,
};
@@ -183,6 +195,8 @@ enum {
* NLA_NESTED_COMPAT Minimum length of structure payload
* NLA_U8, NLA_U16,
* NLA_U32, NLA_U64,
+ * NLA_S8, NLA_S16,
+ * NLA_S32, NLA_S64,
* NLA_MSECS Leaving the length field zero will verify the
* given type fits, using it verifies minimum length
* just like "All other"
@@ -203,19 +217,19 @@ struct nla_policy {
/**
* struct nl_info - netlink source information
* @nlh: Netlink message header of original request
- * @pid: Netlink PID of requesting application
+ * @portid: Netlink PORTID of requesting application
*/
struct nl_info {
struct nlmsghdr *nlh;
struct net *nl_net;
- u32 pid;
+ u32 portid;
};
extern int netlink_rcv_skb(struct sk_buff *skb,
int (*cb)(struct sk_buff *,
struct nlmsghdr *));
extern int nlmsg_notify(struct sock *sk, struct sk_buff *skb,
- u32 pid, unsigned int group, int report,
+ u32 portid, unsigned int group, int report,
gfp_t flags);
extern int nla_validate(const struct nlattr *head,
@@ -430,7 +444,7 @@ static inline int nlmsg_report(const struct nlmsghdr *nlh)
/**
* nlmsg_put - Add a new netlink message to an skb
* @skb: socket buffer to store message in
- * @pid: netlink process id
+ * @portid: netlink process id
* @seq: sequence number of message
* @type: message type
* @payload: length of message payload
@@ -439,13 +453,13 @@ static inline int nlmsg_report(const struct nlmsghdr *nlh)
* Returns NULL if the tailroom of the skb is insufficient to store
* the message header and payload.
*/
-static inline struct nlmsghdr *nlmsg_put(struct sk_buff *skb, u32 pid, u32 seq,
+static inline struct nlmsghdr *nlmsg_put(struct sk_buff *skb, u32 portid, u32 seq,
int type, int payload, int flags)
{
if (unlikely(skb_tailroom(skb) < nlmsg_total_size(payload)))
return NULL;
- return __nlmsg_put(skb, pid, seq, type, payload, flags);
+ return __nlmsg_put(skb, portid, seq, type, payload, flags);
}
/**
@@ -464,7 +478,7 @@ static inline struct nlmsghdr *nlmsg_put_answer(struct sk_buff *skb,
int type, int payload,
int flags)
{
- return nlmsg_put(skb, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq,
+ return nlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
type, payload, flags);
}
@@ -549,18 +563,18 @@ static inline void nlmsg_free(struct sk_buff *skb)
* nlmsg_multicast - multicast a netlink message
* @sk: netlink socket to spread messages to
* @skb: netlink message as socket buffer
- * @pid: own netlink pid to avoid sending to yourself
+ * @portid: own netlink portid to avoid sending to yourself
* @group: multicast group id
* @flags: allocation flags
*/
static inline int nlmsg_multicast(struct sock *sk, struct sk_buff *skb,
- u32 pid, unsigned int group, gfp_t flags)
+ u32 portid, unsigned int group, gfp_t flags)
{
int err;
NETLINK_CB(skb).dst_group = group;
- err = netlink_broadcast(sk, skb, pid, group, flags);
+ err = netlink_broadcast(sk, skb, portid, group, flags);
if (err > 0)
err = 0;
@@ -571,13 +585,13 @@ static inline int nlmsg_multicast(struct sock *sk, struct sk_buff *skb,
* nlmsg_unicast - unicast a netlink message
* @sk: netlink socket to spread message to
* @skb: netlink message as socket buffer
- * @pid: netlink pid of the destination socket
+ * @portid: netlink portid of the destination socket
*/
-static inline int nlmsg_unicast(struct sock *sk, struct sk_buff *skb, u32 pid)
+static inline int nlmsg_unicast(struct sock *sk, struct sk_buff *skb, u32 portid)
{
int err;
- err = netlink_unicast(sk, skb, pid, MSG_DONTWAIT);
+ err = netlink_unicast(sk, skb, portid, MSG_DONTWAIT);
if (err > 0)
err = 0;
@@ -879,6 +893,50 @@ static inline int nla_put_le64(struct sk_buff *skb, int attrtype, __le64 value)
}
/**
+ * nla_put_s8 - Add a s8 netlink attribute to a socket buffer
+ * @skb: socket buffer to add attribute to
+ * @attrtype: attribute type
+ * @value: numeric value
+ */
+static inline int nla_put_s8(struct sk_buff *skb, int attrtype, s8 value)
+{
+ return nla_put(skb, attrtype, sizeof(s8), &value);
+}
+
+/**
+ * nla_put_s16 - Add a s16 netlink attribute to a socket buffer
+ * @skb: socket buffer to add attribute to
+ * @attrtype: attribute type
+ * @value: numeric value
+ */
+static inline int nla_put_s16(struct sk_buff *skb, int attrtype, s16 value)
+{
+ return nla_put(skb, attrtype, sizeof(s16), &value);
+}
+
+/**
+ * nla_put_s32 - Add a s32 netlink attribute to a socket buffer
+ * @skb: socket buffer to add attribute to
+ * @attrtype: attribute type
+ * @value: numeric value
+ */
+static inline int nla_put_s32(struct sk_buff *skb, int attrtype, s32 value)
+{
+ return nla_put(skb, attrtype, sizeof(s32), &value);
+}
+
+/**
+ * nla_put_s64 - Add a s64 netlink attribute to a socket buffer
+ * @skb: socket buffer to add attribute to
+ * @attrtype: attribute type
+ * @value: numeric value
+ */
+static inline int nla_put_s64(struct sk_buff *skb, int attrtype, s64 value)
+{
+ return nla_put(skb, attrtype, sizeof(s64), &value);
+}
+
+/**
* nla_put_string - Add a string netlink attribute to a socket buffer
* @skb: socket buffer to add attribute to
* @attrtype: attribute type
@@ -994,6 +1052,46 @@ static inline __be64 nla_get_be64(const struct nlattr *nla)
}
/**
+ * nla_get_s32 - return payload of s32 attribute
+ * @nla: s32 netlink attribute
+ */
+static inline s32 nla_get_s32(const struct nlattr *nla)
+{
+ return *(s32 *) nla_data(nla);
+}
+
+/**
+ * nla_get_s16 - return payload of s16 attribute
+ * @nla: s16 netlink attribute
+ */
+static inline s16 nla_get_s16(const struct nlattr *nla)
+{
+ return *(s16 *) nla_data(nla);
+}
+
+/**
+ * nla_get_s8 - return payload of s8 attribute
+ * @nla: s8 netlink attribute
+ */
+static inline s8 nla_get_s8(const struct nlattr *nla)
+{
+ return *(s8 *) nla_data(nla);
+}
+
+/**
+ * nla_get_s64 - return payload of s64 attribute
+ * @nla: s64 netlink attribute
+ */
+static inline s64 nla_get_s64(const struct nlattr *nla)
+{
+ s64 tmp;
+
+ nla_memcpy(&tmp, nla, sizeof(tmp));
+
+ return tmp;
+}
+
+/**
* nla_get_flag - return payload of flag attribute
* @nla: flag netlink attribute
*/