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tipc: make netlink support net namespace 

Currently tipc module only allows users sitting on "init_net" namespace
to configure it through netlink interface. But now almost each tipc
component is able to be aware of net namespace, so it's time to open
the permission for users residing in other namespaces, allowing them
to configure their own tipc stack instance through netlink interface.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Tested-by: Tero Aho <Tero.Aho@coriant.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ying Xue 2015-01-09 15:27:13 +08:00 committed by David S. Miller
parent bafa29e341
commit d49e204161
1 changed files with 5 additions and 2 deletions
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7
net/tipc/netlink.c
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@ -54,7 +54,8 @@ static int handle_cmd(struct sk_buff *skb, struct genl_info *info)
int hdr_space = nlmsg_total_size(GENL_HDRLEN + TIPC_GENL_HDRLEN);
u16 cmd;
if ((req_userhdr->cmd & 0xC000) && (!netlink_capable(skb, CAP_NET_ADMIN)))
if ((req_userhdr->cmd & 0xC000) &&
(!netlink_net_capable(skb, CAP_NET_ADMIN)))
cmd = TIPC_CMD_NOT_NET_ADMIN;
else
cmd = req_userhdr->cmd;
@ -70,7 +71,7 @@ static int handle_cmd(struct sk_buff *skb, struct genl_info *info)
rep_nlh = nlmsg_hdr(rep_buf);
memcpy(rep_nlh, req_nlh, hdr_space);
rep_nlh->nlmsg_len = rep_buf->len;
genlmsg_unicast(&init_net, rep_buf, NETLINK_CB(skb).portid);
genlmsg_unicast(net, rep_buf, NETLINK_CB(skb).portid);
}
return 0;
@ -95,6 +96,7 @@ static struct genl_family tipc_genl_family = {
.version = TIPC_GENL_VERSION,
.hdrsize = TIPC_GENL_HDRLEN,
.maxattr = 0,
.netnsok = true,
};
/* Legacy ASCII API */
@ -114,6 +116,7 @@ struct genl_family tipc_genl_v2_family = {
.version = TIPC_GENL_V2_VERSION,
.hdrsize = 0,
.maxattr = TIPC_NLA_MAX,
.netnsok = true,
};
static const struct genl_ops tipc_genl_v2_ops[] = {