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authorD. Wythe <alibuda@linux.alibaba.com>2022-02-10 17:11:38 +0800
committerDavid S. Miller <davem@davemloft.net>2022-02-11 11:14:58 +0000
commitf9496b7c1b48ce02cd17a3ee88b1e049c689a222 (patch)
tree3d90bd3ecb81a8a37387bc31fbcbf6e064142ebf /net/smc/smc_netlink.c
parenta6a6fe27bab48f0d09a64b051e7bde432fcae081 (diff)
downloadlinux-f9496b7c1b48ce02cd17a3ee88b1e049c689a222.tar.gz
net/smc: Add global configure for handshake limitation by netlink
Although we can control SMC handshake limitation through socket options, which means that applications who need it must modify their code. It's quite troublesome for many existing applications. This patch modifies the global default value of SMC handshake limitation through netlink, providing a way to put constraint on handshake without modifies any code for applications. Suggested-by: Tony Lu <tonylu@linux.alibaba.com> Signed-off-by: D. Wythe <alibuda@linux.alibaba.com> Reviewed-by: Tony Lu <tonylu@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc_netlink.c')
-rw-r--r--net/smc/smc_netlink.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/net/smc/smc_netlink.c b/net/smc/smc_netlink.c
index f13ab0661ed5..c5a62f6f52ba 100644
--- a/net/smc/smc_netlink.c
+++ b/net/smc/smc_netlink.c
@@ -111,6 +111,21 @@ static const struct genl_ops smc_gen_nl_ops[] = {
.flags = GENL_ADMIN_PERM,
.doit = smc_nl_disable_seid,
},
+ {
+ .cmd = SMC_NETLINK_DUMP_HS_LIMITATION,
+ /* can be retrieved by unprivileged users */
+ .dumpit = smc_nl_dump_hs_limitation,
+ },
+ {
+ .cmd = SMC_NETLINK_ENABLE_HS_LIMITATION,
+ .flags = GENL_ADMIN_PERM,
+ .doit = smc_nl_enable_hs_limitation,
+ },
+ {
+ .cmd = SMC_NETLINK_DISABLE_HS_LIMITATION,
+ .flags = GENL_ADMIN_PERM,
+ .doit = smc_nl_disable_hs_limitation,
+ },
};
static const struct nla_policy smc_gen_nl_policy[2] = {