diff options
author | Ido Schimmel <idosch@nvidia.com> | 2022-12-06 13:58:06 +0300 |
---|---|---|
committer | Jakub Kicinski <kuba@kernel.org> | 2022-12-08 07:05:51 +0300 |
commit | 3ee5662345f26c3d694e25f3e3b577deaaf31c0f (patch) | |
tree | 4895ccd7e0c2e522fd16ff982c9d4ba074433c6b /net/bridge/br_mdb.c | |
parent | 9f52a51429791737eaf35c6fb5273d178ec005d9 (diff) | |
download | linux-3ee5662345f26c3d694e25f3e3b577deaaf31c0f.tar.xz |
bridge: mcast: Remove br_mdb_parse()
The parsing of the netlink messages and the validity checks are now
performed in br_mdb_config_init() so we can remove br_mdb_parse().
This finally allows us to stop passing netlink attributes deep in the
MDB control path and only use the MDB configuration structure.
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/bridge/br_mdb.c')
-rw-r--r-- | net/bridge/br_mdb.c | 93 |
1 files changed, 5 insertions, 88 deletions
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c index b459886af675..d0e018628f5d 100644 --- a/net/bridge/br_mdb.c +++ b/net/bridge/br_mdb.c @@ -754,73 +754,6 @@ static const struct nla_policy br_mdbe_attrs_pol[MDBE_ATTR_MAX + 1] = { sizeof(struct in6_addr)), }; -static int br_mdb_parse(struct sk_buff *skb, struct nlmsghdr *nlh, - struct net_device **pdev, struct br_mdb_entry **pentry, - struct nlattr **mdb_attrs, struct netlink_ext_ack *extack) -{ - struct net *net = sock_net(skb->sk); - struct br_mdb_entry *entry; - struct br_port_msg *bpm; - struct nlattr *tb[MDBA_SET_ENTRY_MAX+1]; - struct net_device *dev; - int err; - - err = nlmsg_parse_deprecated(nlh, sizeof(*bpm), tb, - MDBA_SET_ENTRY_MAX, NULL, NULL); - if (err < 0) - return err; - - bpm = nlmsg_data(nlh); - if (bpm->ifindex == 0) { - NL_SET_ERR_MSG_MOD(extack, "Invalid bridge ifindex"); - return -EINVAL; - } - - dev = __dev_get_by_index(net, bpm->ifindex); - if (dev == NULL) { - NL_SET_ERR_MSG_MOD(extack, "Bridge device doesn't exist"); - return -ENODEV; - } - - if (!netif_is_bridge_master(dev)) { - NL_SET_ERR_MSG_MOD(extack, "Device is not a bridge"); - return -EOPNOTSUPP; - } - - *pdev = dev; - - if (!tb[MDBA_SET_ENTRY]) { - NL_SET_ERR_MSG_MOD(extack, "Missing MDBA_SET_ENTRY attribute"); - return -EINVAL; - } - if (nla_len(tb[MDBA_SET_ENTRY]) != sizeof(struct br_mdb_entry)) { - NL_SET_ERR_MSG_MOD(extack, "Invalid MDBA_SET_ENTRY attribute length"); - return -EINVAL; - } - - entry = nla_data(tb[MDBA_SET_ENTRY]); - if (!is_valid_mdb_entry(entry, extack)) - return -EINVAL; - *pentry = entry; - - if (tb[MDBA_SET_ENTRY_ATTRS]) { - err = nla_parse_nested(mdb_attrs, MDBE_ATTR_MAX, - tb[MDBA_SET_ENTRY_ATTRS], - br_mdbe_attrs_pol, extack); - if (err) - return err; - if (mdb_attrs[MDBE_ATTR_SOURCE] && - !is_valid_mdb_source(mdb_attrs[MDBE_ATTR_SOURCE], - entry->addr.proto, extack)) - return -EINVAL; - } else { - memset(mdb_attrs, 0, - sizeof(struct nlattr *) * (MDBE_ATTR_MAX + 1)); - } - - return 0; -} - static struct net_bridge_mcast * __br_mdb_choose_context(struct net_bridge *br, const struct br_mdb_entry *entry, @@ -959,7 +892,6 @@ static int br_mdb_add_group(struct net_bridge *br, struct net_bridge_port *port, } static int __br_mdb_add(const struct br_mdb_config *cfg, - struct nlattr **mdb_attrs, struct netlink_ext_ack *extack) { int ret; @@ -1084,23 +1016,16 @@ static int br_mdb_config_init(struct net *net, const struct nlmsghdr *nlh, static int br_mdb_add(struct sk_buff *skb, struct nlmsghdr *nlh, struct netlink_ext_ack *extack) { - struct nlattr *mdb_attrs[MDBE_ATTR_MAX + 1]; struct net *net = sock_net(skb->sk); struct net_bridge_vlan_group *vg; - struct br_mdb_entry *entry; struct net_bridge_vlan *v; struct br_mdb_config cfg; - struct net_device *dev; int err; err = br_mdb_config_init(net, nlh, &cfg, extack); if (err) return err; - err = br_mdb_parse(skb, nlh, &dev, &entry, mdb_attrs, extack); - if (err < 0) - return err; - if (cfg.p) { if (cfg.p->state == BR_STATE_DISABLED && cfg.entry->state != MDB_PERMANENT) { NL_SET_ERR_MSG_MOD(extack, "Port is in disabled state and entry is not permanent"); @@ -1118,19 +1043,18 @@ static int br_mdb_add(struct sk_buff *skb, struct nlmsghdr *nlh, list_for_each_entry(v, &vg->vlan_list, vlist) { cfg.entry->vid = v->vid; cfg.group.vid = v->vid; - err = __br_mdb_add(&cfg, mdb_attrs, extack); + err = __br_mdb_add(&cfg, extack); if (err) break; } } else { - err = __br_mdb_add(&cfg, mdb_attrs, extack); + err = __br_mdb_add(&cfg, extack); } return err; } -static int __br_mdb_del(const struct br_mdb_config *cfg, - struct nlattr **mdb_attrs) +static int __br_mdb_del(const struct br_mdb_config *cfg) { struct br_mdb_entry *entry = cfg->entry; struct net_bridge *br = cfg->br; @@ -1174,23 +1098,16 @@ unlock: static int br_mdb_del(struct sk_buff *skb, struct nlmsghdr *nlh, struct netlink_ext_ack *extack) { - struct nlattr *mdb_attrs[MDBE_ATTR_MAX + 1]; struct net *net = sock_net(skb->sk); struct net_bridge_vlan_group *vg; - struct br_mdb_entry *entry; struct net_bridge_vlan *v; struct br_mdb_config cfg; - struct net_device *dev; int err; err = br_mdb_config_init(net, nlh, &cfg, extack); if (err) return err; - err = br_mdb_parse(skb, nlh, &dev, &entry, mdb_attrs, extack); - if (err < 0) - return err; - if (cfg.p) vg = nbp_vlan_group(cfg.p); else @@ -1203,10 +1120,10 @@ static int br_mdb_del(struct sk_buff *skb, struct nlmsghdr *nlh, list_for_each_entry(v, &vg->vlan_list, vlist) { cfg.entry->vid = v->vid; cfg.group.vid = v->vid; - err = __br_mdb_del(&cfg, mdb_attrs); + err = __br_mdb_del(&cfg); } } else { - err = __br_mdb_del(&cfg, mdb_attrs); + err = __br_mdb_del(&cfg); } return err; |