diff options
| -rw-r--r-- | include/net/ip.h | 4 | ||||
| -rw-r--r-- | net/ipv4/fib_semantics.c | 27 | ||||
| -rw-r--r-- | net/ipv4/metrics.c | 30 | ||||
| -rw-r--r-- | net/ipv6/ip6_fib.c | 2 | ||||
| -rw-r--r-- | net/ipv6/route.c | 29 |
5 files changed, 43 insertions, 49 deletions
diff --git a/include/net/ip.h b/include/net/ip.h index e44b1a44f67a..8cbe7e8c9e1e 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -420,8 +420,8 @@ static inline unsigned int ip_skb_dst_mtu(struct sock *sk, return min(READ_ONCE(skb_dst(skb)->dev->mtu), IP_MAX_MTU); } -int ip_metrics_convert(struct net *net, struct nlattr *fc_mx, int fc_mx_len, - u32 *metrics); +struct dst_metrics *ip_fib_metrics_init(struct net *net, struct nlattr *fc_mx, + int fc_mx_len); u32 ip_idents_reserve(u32 hash, int segs); void __ip_select_ident(struct net *net, struct iphdr *iph, int segs); diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index bee8db979195..e8f4add597ed 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -1020,13 +1020,6 @@ static bool fib_valid_prefsrc(struct fib_config *cfg, __be32 fib_prefsrc) return true; } -static int -fib_convert_metrics(struct fib_info *fi, const struct fib_config *cfg) -{ - return ip_metrics_convert(fi->fib_net, cfg->fc_mx, cfg->fc_mx_len, - fi->fib_metrics->metrics); -} - struct fib_info *fib_create_info(struct fib_config *cfg, struct netlink_ext_ack *extack) { @@ -1084,16 +1077,14 @@ struct fib_info *fib_create_info(struct fib_config *cfg, fi = kzalloc(sizeof(*fi)+nhs*sizeof(struct fib_nh), GFP_KERNEL); if (!fi) goto failure; - if (cfg->fc_mx) { - fi->fib_metrics = kzalloc(sizeof(*fi->fib_metrics), GFP_KERNEL); - if (unlikely(!fi->fib_metrics)) { - kfree(fi); - return ERR_PTR(err); - } - refcount_set(&fi->fib_metrics->refcnt, 1); - } else { - fi->fib_metrics = (struct dst_metrics *)&dst_default_metrics; + fi->fib_metrics = ip_fib_metrics_init(fi->fib_net, cfg->fc_mx, + cfg->fc_mx_len); + if (unlikely(IS_ERR(fi->fib_metrics))) { + err = PTR_ERR(fi->fib_metrics); + kfree(fi); + return ERR_PTR(err); } + fib_info_cnt++; fi->fib_net = net; fi->fib_protocol = cfg->fc_protocol; @@ -1112,10 +1103,6 @@ struct fib_info *fib_create_info(struct fib_config *cfg, goto failure; } endfor_nexthops(fi) - err = fib_convert_metrics(fi, cfg); - if (err) - goto failure; - if (cfg->fc_mp) { #ifdef CONFIG_IP_ROUTE_MULTIPATH err = fib_get_nhs(fi, cfg->fc_mp, cfg->fc_mp_len, cfg, extack); diff --git a/net/ipv4/metrics.c b/net/ipv4/metrics.c index 04311f7067e2..6d218f5a2e71 100644 --- a/net/ipv4/metrics.c +++ b/net/ipv4/metrics.c @@ -5,8 +5,8 @@ #include <net/net_namespace.h> #include <net/tcp.h> -int ip_metrics_convert(struct net *net, struct nlattr *fc_mx, int fc_mx_len, - u32 *metrics) +static int ip_metrics_convert(struct net *net, struct nlattr *fc_mx, + int fc_mx_len, u32 *metrics) { bool ecn_ca = false; struct nlattr *nla; @@ -52,4 +52,28 @@ int ip_metrics_convert(struct net *net, struct nlattr *fc_mx, int fc_mx_len, return 0; } -EXPORT_SYMBOL_GPL(ip_metrics_convert); + +struct dst_metrics *ip_fib_metrics_init(struct net *net, struct nlattr *fc_mx, + int fc_mx_len) +{ + struct dst_metrics *fib_metrics; + int err; + + if (!fc_mx) + return (struct dst_metrics *)&dst_default_metrics; + + fib_metrics = kzalloc(sizeof(*fib_metrics), GFP_KERNEL); + if (unlikely(!fib_metrics)) + return ERR_PTR(-ENOMEM); + + err = ip_metrics_convert(net, fc_mx, fc_mx_len, fib_metrics->metrics); + if (!err) { + refcount_set(&fib_metrics->refcnt, 1); + } else { + kfree(fib_metrics); + fib_metrics = ERR_PTR(err); + } + + return fib_metrics; +} +EXPORT_SYMBOL_GPL(ip_fib_metrics_init); diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 5516f55e214b..de063780a175 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -160,8 +160,6 @@ struct fib6_info *fib6_info_alloc(gfp_t gfp_flags) } INIT_LIST_HEAD(&f6i->fib6_siblings); - f6i->fib6_metrics = (struct dst_metrics *)&dst_default_metrics; - atomic_inc(&f6i->fib6_ref); return f6i; diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 3adf107b42d2..b62b7aa53bbe 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -2705,24 +2705,6 @@ out: return entries > rt_max_size; } -static int ip6_convert_metrics(struct net *net, struct fib6_info *rt, - struct fib6_config *cfg) -{ - struct dst_metrics *p; - - if (!cfg->fc_mx) - return 0; - - p = kzalloc(sizeof(*rt->fib6_metrics), GFP_KERNEL); - if (unlikely(!p)) - return -ENOMEM; - - refcount_set(&p->refcnt, 1); - rt->fib6_metrics = p; - - return ip_metrics_convert(net, cfg->fc_mx, cfg->fc_mx_len, p->metrics); -} - static struct rt6_info *ip6_nh_lookup_table(struct net *net, struct fib6_config *cfg, const struct in6_addr *gw_addr, @@ -2998,13 +2980,15 @@ static struct fib6_info *ip6_route_info_create(struct fib6_config *cfg, if (!rt) goto out; + rt->fib6_metrics = ip_fib_metrics_init(net, cfg->fc_mx, cfg->fc_mx_len); + if (IS_ERR(rt->fib6_metrics)) { + err = PTR_ERR(rt->fib6_metrics); + goto out; + } + if (cfg->fc_flags & RTF_ADDRCONF) rt->dst_nocount = true; - err = ip6_convert_metrics(net, rt, cfg); - if (err < 0) - goto out; - if (cfg->fc_flags & RTF_EXPIRES) fib6_set_expires(rt, jiffies + clock_t_to_jiffies(cfg->fc_expires)); @@ -3727,6 +3711,7 @@ struct fib6_info *addrconf_f6i_alloc(struct net *net, if (!f6i) return ERR_PTR(-ENOMEM); + f6i->fib6_metrics = ip_fib_metrics_init(net, NULL, 0); f6i->dst_nocount = true; f6i->dst_host = true; f6i->fib6_protocol = RTPROT_KERNEL; |