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-rw-r--r--include/net/genetlink.h31
-rw-r--r--kernel/taskstats.c8
-rw-r--r--net/netlabel/netlabel_cipso_v4.c17
-rw-r--r--net/netlabel/netlabel_mgmt.c34
-rw-r--r--net/netlabel/netlabel_unlabeled.c8
-rw-r--r--net/netlabel/netlabel_user.h31
-rw-r--r--net/netlink/genetlink.c17
7 files changed, 51 insertions, 95 deletions
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 797c18b5041..7fd131c9a8c 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -79,34 +79,51 @@ extern struct sock *genl_sock;
* @skb: socket buffer holding the message
* @pid: netlink pid the message is addressed to
* @seq: sequence number (usually the one of the sender)
- * @type: netlink message type
- * @hdrlen: length of the user specific header
+ * @family: generic netlink family
* @flags netlink message flags
* @cmd: generic netlink command
- * @version: version
*
* Returns pointer to user specific header
*/
static inline void *genlmsg_put(struct sk_buff *skb, u32 pid, u32 seq,
- int type, int hdrlen, int flags,
- u8 cmd, u8 version)
+ struct genl_family *family, int flags, u8 cmd)
{
struct nlmsghdr *nlh;
struct genlmsghdr *hdr;
- nlh = nlmsg_put(skb, pid, seq, type, GENL_HDRLEN + hdrlen, flags);
+ nlh = nlmsg_put(skb, pid, seq, family->id, GENL_HDRLEN +
+ family->hdrsize, flags);
if (nlh == NULL)
return NULL;
hdr = nlmsg_data(nlh);
hdr->cmd = cmd;
- hdr->version = version;
+ hdr->version = family->version;
hdr->reserved = 0;
return (char *) hdr + GENL_HDRLEN;
}
/**
+ * genlmsg_put_reply - Add generic netlink header to a reply message
+ * @skb: socket buffer holding the message
+ * @info: receiver info
+ * @family: generic netlink family
+ * @flags: netlink message flags
+ * @cmd: generic netlink command
+ *
+ * Returns pointer to user specific header
+ */
+static inline void *genlmsg_put_reply(struct sk_buff *skb,
+ struct genl_info *info,
+ struct genl_family *family,
+ int flags, u8 cmd)
+{
+ return genlmsg_put(skb, info->snd_pid, info->snd_seq, family,
+ flags, cmd);
+}
+
+/**
* genlmsg_end - Finalize a generic netlink message
* @skb: socket buffer the message is stored in
* @hdr: user specific header
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index faa5239813c..d3d28919d4b 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -85,13 +85,9 @@ static int prepare_reply(struct genl_info *info, u8 cmd, struct sk_buff **skbp,
int seq = get_cpu_var(taskstats_seqnum)++;
put_cpu_var(taskstats_seqnum);
- reply = genlmsg_put(skb, 0, seq,
- family.id, 0, 0,
- cmd, family.version);
+ reply = genlmsg_put(skb, 0, seq, &family, 0, cmd);
} else
- reply = genlmsg_put(skb, info->snd_pid, info->snd_seq,
- family.id, 0, 0,
- cmd, family.version);
+ reply = genlmsg_put_reply(skb, info, &family, 0, cmd);
if (reply == NULL) {
nlmsg_free(skb);
return -EINVAL;
diff --git a/net/netlabel/netlabel_cipso_v4.c b/net/netlabel/netlabel_cipso_v4.c
index 52628878524..fe9851fac85 100644
--- a/net/netlabel/netlabel_cipso_v4.c
+++ b/net/netlabel/netlabel_cipso_v4.c
@@ -457,12 +457,8 @@ list_start:
ret_val = -ENOMEM;
goto list_failure;
}
- data = netlbl_netlink_hdr_put(ans_skb,
- info->snd_pid,
- info->snd_seq,
- netlbl_cipsov4_gnl_family.id,
- 0,
- NLBL_CIPSOV4_C_LIST);
+ data = genlmsg_put_reply(ans_skb, info, &netlbl_cipsov4_gnl_family,
+ 0, NLBL_CIPSOV4_C_LIST);
if (data == NULL) {
ret_val = -ENOMEM;
goto list_failure;
@@ -607,12 +603,9 @@ static int netlbl_cipsov4_listall_cb(struct cipso_v4_doi *doi_def, void *arg)
struct netlbl_cipsov4_doiwalk_arg *cb_arg = arg;
void *data;
- data = netlbl_netlink_hdr_put(cb_arg->skb,
- NETLINK_CB(cb_arg->nl_cb->skb).pid,
- cb_arg->seq,
- netlbl_cipsov4_gnl_family.id,
- NLM_F_MULTI,
- NLBL_CIPSOV4_C_LISTALL);
+ data = genlmsg_put(cb_arg->skb, NETLINK_CB(cb_arg->nl_cb->skb).pid,
+ cb_arg->seq, &netlbl_cipsov4_gnl_family,
+ NLM_F_MULTI, NLBL_CIPSOV4_C_LISTALL);
if (data == NULL)
goto listall_cb_failure;
diff --git a/net/netlabel/netlabel_mgmt.c b/net/netlabel/netlabel_mgmt.c
index 784693735e0..e8c80f33f3d 100644
--- a/net/netlabel/netlabel_mgmt.c
+++ b/net/netlabel/netlabel_mgmt.c
@@ -188,12 +188,9 @@ static int netlbl_mgmt_listall_cb(struct netlbl_dom_map *entry, void *arg)
struct netlbl_domhsh_walk_arg *cb_arg = arg;
void *data;
- data = netlbl_netlink_hdr_put(cb_arg->skb,
- NETLINK_CB(cb_arg->nl_cb->skb).pid,
- cb_arg->seq,
- netlbl_mgmt_gnl_family.id,
- NLM_F_MULTI,
- NLBL_MGMT_C_LISTALL);
+ data = genlmsg_put(cb_arg->skb, NETLINK_CB(cb_arg->nl_cb->skb).pid,
+ cb_arg->seq, &netlbl_mgmt_gnl_family,
+ NLM_F_MULTI, NLBL_MGMT_C_LISTALL);
if (data == NULL)
goto listall_cb_failure;
@@ -359,12 +356,8 @@ static int netlbl_mgmt_listdef(struct sk_buff *skb, struct genl_info *info)
ans_skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (ans_skb == NULL)
return -ENOMEM;
- data = netlbl_netlink_hdr_put(ans_skb,
- info->snd_pid,
- info->snd_seq,
- netlbl_mgmt_gnl_family.id,
- 0,
- NLBL_MGMT_C_LISTDEF);
+ data = genlmsg_put_reply(ans_skb, info, &netlbl_mgmt_gnl_family,
+ 0, NLBL_MGMT_C_LISTDEF);
if (data == NULL)
goto listdef_failure;
@@ -422,12 +415,9 @@ static int netlbl_mgmt_protocols_cb(struct sk_buff *skb,
int ret_val = -ENOMEM;
void *data;
- data = netlbl_netlink_hdr_put(skb,
- NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq,
- netlbl_mgmt_gnl_family.id,
- NLM_F_MULTI,
- NLBL_MGMT_C_PROTOCOLS);
+ data = genlmsg_put(skb, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq,
+ &netlbl_mgmt_gnl_family, NLM_F_MULTI,
+ NLBL_MGMT_C_PROTOCOLS);
if (data == NULL)
goto protocols_cb_failure;
@@ -495,12 +485,8 @@ static int netlbl_mgmt_version(struct sk_buff *skb, struct genl_info *info)
ans_skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (ans_skb == NULL)
return -ENOMEM;
- data = netlbl_netlink_hdr_put(ans_skb,
- info->snd_pid,
- info->snd_seq,
- netlbl_mgmt_gnl_family.id,
- 0,
- NLBL_MGMT_C_VERSION);
+ data = genlmsg_put_reply(ans_skb, info, &netlbl_mgmt_gnl_family,
+ 0, NLBL_MGMT_C_VERSION);
if (data == NULL)
goto version_failure;
diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c
index 57dd07b51be..a1d4ae51db0 100644
--- a/net/netlabel/netlabel_unlabeled.c
+++ b/net/netlabel/netlabel_unlabeled.c
@@ -141,12 +141,8 @@ static int netlbl_unlabel_list(struct sk_buff *skb, struct genl_info *info)
ans_skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (ans_skb == NULL)
goto list_failure;
- data = netlbl_netlink_hdr_put(ans_skb,
- info->snd_pid,
- info->snd_seq,
- netlbl_unlabel_gnl_family.id,
- 0,
- NLBL_UNLABEL_C_LIST);
+ data = genlmsg_put_reply(ans_skb, info, &netlbl_unlabel_gnl_family,
+ 0, NLBL_UNLABEL_C_LIST);
if (data == NULL) {
ret_val = -ENOMEM;
goto list_failure;
diff --git a/net/netlabel/netlabel_user.h b/net/netlabel/netlabel_user.h
index 47967ef3296..6d7f4ab46c2 100644
--- a/net/netlabel/netlabel_user.h
+++ b/net/netlabel/netlabel_user.h
@@ -42,37 +42,6 @@
/* NetLabel NETLINK helper functions */
/**
- * netlbl_netlink_hdr_put - 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. Returns a pointer to the start of the payload buffer
- * on success or NULL on failure.
- *
- */
-static inline void *netlbl_netlink_hdr_put(struct sk_buff *skb,
- u32 pid,
- u32 seq,
- int type,
- int flags,
- u8 cmd)
-{
- return genlmsg_put(skb,
- pid,
- seq,
- type,
- 0,
- flags,
- cmd,
- NETLBL_PROTO_VERSION);
-}
-
-/**
* netlbl_netlink_auditinfo - Fetch the audit information from a NETLINK msg
* @skb: the packet
* @audit_info: NetLabel audit information
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 0249a56a9aa..8903ef93db5 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -384,6 +384,13 @@ static void genl_rcv(struct sock *sk, int len)
* Controller
**************************************************************************/
+static struct genl_family genl_ctrl = {
+ .id = GENL_ID_CTRL,
+ .name = "nlctrl",
+ .version = 0x1,
+ .maxattr = CTRL_ATTR_MAX,
+};
+
static int ctrl_fill_info(struct genl_family *family, u32 pid, u32 seq,
u32 flags, struct sk_buff *skb, u8 cmd)
{
@@ -392,8 +399,7 @@ static int ctrl_fill_info(struct genl_family *family, u32 pid, u32 seq,
void *hdr;
int idx = 1;
- hdr = genlmsg_put(skb, pid, seq, GENL_ID_CTRL, 0, flags, cmd,
- family->version);
+ hdr = genlmsg_put(skb, pid, seq, &genl_ctrl, flags, cmd);
if (hdr == NULL)
return -1;
@@ -562,13 +568,6 @@ static struct genl_ops genl_ctrl_ops = {
.policy = ctrl_policy,
};
-static struct genl_family genl_ctrl = {
- .id = GENL_ID_CTRL,
- .name = "nlctrl",
- .version = 0x1,
- .maxattr = CTRL_ATTR_MAX,
-};
-
static int __init genl_init(void)
{
int i, err;
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-23 18:16:14 +0000