diff options
| -rw-r--r-- | include/linux/inetdevice.h | 10 | ||||
| -rw-r--r-- | net/ipv4/devinet.c | 31 |
2 files changed, 25 insertions, 16 deletions
diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h index 367dc2a0f84a..d5d05503a04b 100644 --- a/include/linux/inetdevice.h +++ b/include/linux/inetdevice.h @@ -186,7 +186,7 @@ __be32 inet_confirm_addr(struct net *net, struct in_device *in_dev, __be32 dst, struct in_ifaddr *inet_ifa_byprefix(struct in_device *in_dev, __be32 prefix, __be32 mask); struct in_ifaddr *inet_lookup_ifaddr_rcu(struct net *net, __be32 addr); -static __inline__ bool inet_ifa_match(__be32 addr, struct in_ifaddr *ifa) +static inline bool inet_ifa_match(__be32 addr, const struct in_ifaddr *ifa) { return !((addr^ifa->ifa_address)&ifa->ifa_mask); } @@ -215,6 +215,14 @@ static __inline__ bool bad_mask(__be32 mask, __be32 addr) #define endfor_ifa(in_dev) } +#define in_dev_for_each_ifa_rtnl(ifa, in_dev) \ + for (ifa = (in_dev)->ifa_list; ifa; \ + ifa = ifa->ifa_next) + +#define in_dev_for_each_ifa_rcu(ifa, in_dev) \ + for (ifa = (in_dev)->ifa_list; ifa; \ + ifa = ifa->ifa_next) + static inline struct in_device *__in_dev_get_rcu(const struct net_device *dev) { return rcu_dereference(dev->ip_ptr); diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index 701c5d113a34..7803a4d2951c 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -873,13 +873,12 @@ errout: static struct in_ifaddr *find_matching_ifa(struct in_ifaddr *ifa) { struct in_device *in_dev = ifa->ifa_dev; - struct in_ifaddr *ifa1, **ifap; + struct in_ifaddr *ifa1; if (!ifa->ifa_local) return NULL; - for (ifap = &in_dev->ifa_list; (ifa1 = *ifap) != NULL; - ifap = &ifa1->ifa_next) { + in_dev_for_each_ifa_rtnl(ifa1, in_dev) { if (ifa1->ifa_mask == ifa->ifa_mask && inet_ifa_match(ifa1->ifa_address, ifa) && ifa1->ifa_local == ifa->ifa_local) @@ -1208,7 +1207,7 @@ out: static int inet_gifconf(struct net_device *dev, char __user *buf, int len, int size) { struct in_device *in_dev = __in_dev_get_rtnl(dev); - struct in_ifaddr *ifa; + const struct in_ifaddr *ifa; struct ifreq ifr; int done = 0; @@ -1218,7 +1217,7 @@ static int inet_gifconf(struct net_device *dev, char __user *buf, int len, int s if (!in_dev) goto out; - for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) { + in_dev_for_each_ifa_rtnl(ifa, in_dev) { if (!buf) { done += size; continue; @@ -1321,10 +1320,11 @@ EXPORT_SYMBOL(inet_select_addr); static __be32 confirm_addr_indev(struct in_device *in_dev, __be32 dst, __be32 local, int scope) { - int same = 0; + const struct in_ifaddr *ifa; __be32 addr = 0; + int same = 0; - for_ifa(in_dev) { + in_dev_for_each_ifa_rcu(ifa, in_dev) { if (!addr && (local == ifa->ifa_local || !local) && ifa->ifa_scope <= scope) { @@ -1350,7 +1350,7 @@ static __be32 confirm_addr_indev(struct in_device *in_dev, __be32 dst, same = 0; } } - } endfor_ifa(in_dev); + } return same ? addr : 0; } @@ -1424,7 +1424,7 @@ static void inetdev_changename(struct net_device *dev, struct in_device *in_dev) struct in_ifaddr *ifa; int named = 0; - for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) { + in_dev_for_each_ifa_rtnl(ifa, in_dev) { char old[IFNAMSIZ], *dot; memcpy(old, ifa->ifa_label, IFNAMSIZ); @@ -1454,10 +1454,9 @@ static void inetdev_send_gratuitous_arp(struct net_device *dev, struct in_device *in_dev) { - struct in_ifaddr *ifa; + const struct in_ifaddr *ifa; - for (ifa = in_dev->ifa_list; ifa; - ifa = ifa->ifa_next) { + in_dev_for_each_ifa_rtnl(ifa, in_dev) { arp_send(ARPOP_REQUEST, ETH_P_ARP, ifa->ifa_local, dev, ifa->ifa_local, NULL, @@ -1727,15 +1726,17 @@ static int in_dev_dump_addr(struct in_device *in_dev, struct sk_buff *skb, int ip_idx = 0; int err; - for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next, ip_idx++) { - if (ip_idx < s_ip_idx) + in_dev_for_each_ifa_rcu(ifa, in_dev) { + if (ip_idx < s_ip_idx) { + ip_idx++; continue; - + } err = inet_fill_ifaddr(skb, ifa, fillargs); if (err < 0) goto done; nl_dump_check_consistent(cb, nlmsg_hdr(skb)); + ip_idx++; } err = 0; |