tipc: move and rename the legacy nl api to "nl compat"

The new netlink API is no longer "v2" but rather the standard API and
the legacy API is now "nl compat". We split them into separate
start/stop and put them in different files in order to further
distinguish them.

Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 63 deletions

diff --git a/net/tipc/netlink.c b/net/tipc/netlink.c
index fe0f5134ce15..7f6475efc984 100644
--- a/net/tipc/netlink.c
+++ b/net/tipc/netlink.c
@@ -35,7 +35,6 @@
  */
 
 #include "core.h"
-#include "config.h"
 #include "socket.h"
 #include "name_table.h"
 #include "bearer.h"
@@ -44,39 +43,6 @@
 #include "net.h"
 #include <net/genetlink.h>
 
-static int handle_cmd(struct sk_buff *skb, struct genl_info *info)
-{
-        struct net *net = genl_info_net(info);
-        struct sk_buff *rep_buf;
-        struct nlmsghdr *rep_nlh;
-        struct nlmsghdr *req_nlh = info->nlhdr;
-        struct tipc_genlmsghdr *req_userhdr = info->userhdr;
-        int hdr_space = nlmsg_total_size(GENL_HDRLEN + TIPC_GENL_HDRLEN);
-        u16 cmd;
-
-        if ((req_userhdr->cmd & 0xC000) &&
-            (!netlink_net_capable(skb, CAP_NET_ADMIN)))
-                cmd = TIPC_CMD_NOT_NET_ADMIN;
-        else
-                cmd = req_userhdr->cmd;
-
-        rep_buf = tipc_cfg_do_cmd(net, req_userhdr->dest, cmd,
-                                  nlmsg_data(req_nlh) + GENL_HDRLEN +
-                                  TIPC_GENL_HDRLEN,
-                                  nlmsg_attrlen(req_nlh, GENL_HDRLEN +
-                                  TIPC_GENL_HDRLEN), hdr_space);
-
-        if (rep_buf) {
-                skb_push(rep_buf, hdr_space);
-                rep_nlh = nlmsg_hdr(rep_buf);
-                memcpy(rep_nlh, req_nlh, hdr_space);
-                rep_nlh->nlmsg_len = rep_buf->len;
-                genlmsg_unicast(net, rep_buf, NETLINK_CB(skb).portid);
-        }
-
-        return 0;
-}
-
 static const struct nla_policy tipc_nl_policy[TIPC_NLA_MAX + 1] = {
         [TIPC_NLA_UNSPEC]       = { .type = NLA_UNSPEC, },
         [TIPC_NLA_BEARER]       = { .type = NLA_NESTED, },
@@ -89,28 +55,10 @@ static const struct nla_policy tipc_nl_policy[TIPC_NLA_MAX + 1] = {
         [TIPC_NLA_NAME_TABLE]   = { .type = NLA_NESTED, }
 };
 
-/* Legacy ASCII API */
-static struct genl_family tipc_genl_family = {
-        .id             = GENL_ID_GENERATE,
-        .name           = TIPC_GENL_NAME,
-        .version        = TIPC_GENL_VERSION,
-        .hdrsize        = TIPC_GENL_HDRLEN,
-        .maxattr        = 0,
-        .netnsok        = true,
-};
-
-/* Legacy ASCII API */
-static struct genl_ops tipc_genl_ops[] = {
-        {
-                .cmd            = TIPC_GENL_CMD,
-                .doit           = handle_cmd,
-        },
-};
-
 /* Users of the legacy API (tipc-config) can't handle that we add operations,
  * so we have a separate genl handling for the new API.
  */
-struct genl_family tipc_genl_v2_family = {
+struct genl_family tipc_genl_family = {
         .id             = GENL_ID_GENERATE,
         .name           = TIPC_GENL_V2_NAME,
         .version        = TIPC_GENL_V2_VERSION,
@@ -202,9 +150,9 @@ static const struct genl_ops tipc_genl_v2_ops[] = {
 
 int tipc_nlmsg_parse(const struct nlmsghdr *nlh, struct nlattr ***attr)
 {
-        u32 maxattr = tipc_genl_v2_family.maxattr;
+        u32 maxattr = tipc_genl_family.maxattr;
 
-        *attr = tipc_genl_v2_family.attrbuf;
+        *attr = tipc_genl_family.attrbuf;
         if (!*attr)
                 return -EOPNOTSUPP;
 
@@ -215,13 +163,7 @@ int tipc_netlink_start(void)
 {
         int res;
 
-        res = genl_register_family_with_ops(&tipc_genl_family, tipc_genl_ops);
-        if (res) {
-                pr_err("Failed to register legacy interface\n");
-                return res;
-        }
-
-        res = genl_register_family_with_ops(&tipc_genl_v2_family,
+        res = genl_register_family_with_ops(&tipc_genl_family,
                                             tipc_genl_v2_ops);
         if (res) {
                 pr_err("Failed to register netlink interface\n");
@@ -233,5 +175,4 @@ int tipc_netlink_start(void)
 void tipc_netlink_stop(void)
 {
         genl_unregister_family(&tipc_genl_family);
-        genl_unregister_family(&tipc_genl_v2_family);
 }