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authorRichard Alpe <richard.alpe@ericsson.com>2014-11-20 10:29:09 +0100
committerDavid S. Miller <davem@davemloft.net>2014-11-21 15:01:30 -0500
commit315c00bc9f2bd17f7ad7ed8119ca49b1125af507 (patch)
treedfa45dd6c8ee275b7b708fb96838d48e492919c7
parent35b9dd7607f049466a66427e58818b29aeae9ea7 (diff)
tipc: add bearer set to new netlink api
Add TIPC_NL_BEARER_SET command to the new tipc netlink API. This command can set one or more link properties for a particular bearer. Netlink logical layout of bearer set message: -> bearer -> name -> link properties [ -> tolerance ] [ -> priority ] [ -> window ] Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/uapi/linux/tipc_netlink.h1
-rw-r--r--net/tipc/bearer.c49
-rw-r--r--net/tipc/bearer.h1
-rw-r--r--net/tipc/netlink.c5
4 files changed, 56 insertions, 0 deletions
diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h
index 249ec7e9952c..f446fba6a0c7 100644
--- a/include/uapi/linux/tipc_netlink.h
+++ b/include/uapi/linux/tipc_netlink.h
@@ -44,6 +44,7 @@ enum {
TIPC_NL_BEARER_DISABLE,
TIPC_NL_BEARER_ENABLE,
TIPC_NL_BEARER_GET,
+ TIPC_NL_BEARER_SET,
__TIPC_NL_CMD_MAX,
TIPC_NL_CMD_MAX = __TIPC_NL_CMD_MAX - 1
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index d49b8c25dd11..6d547d0b3f31 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -849,3 +849,52 @@ int tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info)
return 0;
}
+
+int tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info)
+{
+ int err;
+ char *name;
+ struct tipc_bearer *b;
+ struct nlattr *attrs[TIPC_NLA_BEARER_MAX + 1];
+
+ if (!info->attrs[TIPC_NLA_BEARER])
+ return -EINVAL;
+
+ err = nla_parse_nested(attrs, TIPC_NLA_BEARER_MAX,
+ info->attrs[TIPC_NLA_BEARER],
+ tipc_nl_bearer_policy);
+ if (err)
+ return err;
+
+ if (!attrs[TIPC_NLA_BEARER_NAME])
+ return -EINVAL;
+ name = nla_data(attrs[TIPC_NLA_BEARER_NAME]);
+
+ rtnl_lock();
+ b = tipc_bearer_find(name);
+ if (!b) {
+ rtnl_unlock();
+ return -EINVAL;
+ }
+
+ if (attrs[TIPC_NLA_BEARER_PROP]) {
+ struct nlattr *props[TIPC_NLA_PROP_MAX + 1];
+
+ err = tipc_nl_parse_link_prop(attrs[TIPC_NLA_BEARER_PROP],
+ props);
+ if (err) {
+ rtnl_unlock();
+ return err;
+ }
+
+ if (props[TIPC_NLA_PROP_TOL])
+ b->tolerance = nla_get_u32(props[TIPC_NLA_PROP_TOL]);
+ if (props[TIPC_NLA_PROP_PRIO])
+ b->priority = nla_get_u32(props[TIPC_NLA_PROP_PRIO]);
+ if (props[TIPC_NLA_PROP_WIN])
+ b->window = nla_get_u32(props[TIPC_NLA_PROP_WIN]);
+ }
+ rtnl_unlock();
+
+ return 0;
+}
diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h
index 2d07e35f91fc..c6cf9df31375 100644
--- a/net/tipc/bearer.h
+++ b/net/tipc/bearer.h
@@ -182,6 +182,7 @@ int tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info);
int tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info);
int tipc_nl_bearer_dump(struct sk_buff *skb, struct netlink_callback *cb);
int tipc_nl_bearer_get(struct sk_buff *skb, struct genl_info *info);
+int tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info);
int tipc_media_set_priority(const char *name, u32 new_value);
int tipc_media_set_window(const char *name, u32 new_value);
diff --git a/net/tipc/netlink.c b/net/tipc/netlink.c
index 0c00422512fa..a5291314a210 100644
--- a/net/tipc/netlink.c
+++ b/net/tipc/netlink.c
@@ -118,6 +118,11 @@ static const struct genl_ops tipc_genl_v2_ops[] = {
.doit = tipc_nl_bearer_get,
.dumpit = tipc_nl_bearer_dump,
.policy = tipc_nl_policy,
+ },
+ {
+ .cmd = TIPC_NL_BEARER_SET,
+ .doit = tipc_nl_bearer_set,
+ .policy = tipc_nl_policy,
}
};

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