Hello.
In article <[EMAIL PROTECTED]> (at Fri, 09 Jun 2006 00:56:46 +0200), Patrick
McHardy <[EMAIL PROTECTED]> says:
Okay, thanks.
I think it is better to eliminate these magic numbers.
How about this?
Signed-off-by: YOSHIFUJI Hideaki <[EMAIL PROTECTED]>
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 445006e..b5267c6 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2860,6 +2860,11 @@ inet6_rtm_newaddr(struct sk_buff *skb, s
return inet6_addr_add(ifm->ifa_index, pfx, ifm->ifa_prefixlen);
}
+/* Maximum length of ifa_cacheinfo attributes */
+#define INET6_IFADDR_RTA_SPACE \
+ RTA_SPACE(16) /* IFA_ADDRESS */ + \
+ RTA_SPACE(sizeof(struct ifa_cacheinfo)) /* CACHEINFO */
+
static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa,
u32 pid, u32 seq, int event, unsigned int flags)
{
@@ -3092,7 +3097,7 @@ static int inet6_dump_ifacaddr(struct sk
static void inet6_ifa_notify(int event, struct inet6_ifaddr *ifa)
{
struct sk_buff *skb;
- int size = NLMSG_SPACE(sizeof(struct ifaddrmsg)+128);
+ int size = NLMSG_SPACE(sizeof(struct ifaddrmsg) +
INET6_IFADDR_RTA_SPACE);
skb = alloc_skb(size, GFP_ATOMIC);
if (!skb) {
@@ -3142,6 +3147,16 @@ static void inline ipv6_store_devconf(st
#endif
}
+/* Maximum length of ifinfomsg attributes */
+#define INET6_IFINFO_RTA_SPACE \
+ RTA_SPACE(IFNAMSIZ) /* IFNAME */ + \
+ RTA_SPACE(MAX_ADDR_LEN) /* ADDRESS */ + \
+ RTA_SPACE(sizeof(u32)) /* MTU */ + \
+ RTA_SPACE(0) /* PROTINFO */ + \
+ RTA_SPACE(sizeof(u32)) /* FLAGS */ + \
+ RTA_SPACE(sizeof(struct ifla_cacheinfo)) /* CACHEINFO */ + \
+ RTA_SPACE(sizeof(__s32[DEVCONF_MAX])) /* CONF */
+
static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev,
u32 pid, u32 seq, int event, unsigned int flags)
{
@@ -3235,8 +3250,7 @@ static int inet6_dump_ifinfo(struct sk_b
void inet6_ifinfo_notify(int event, struct inet6_dev *idev)
{
struct sk_buff *skb;
- /* 128 bytes ?? */
- int size = NLMSG_SPACE(sizeof(struct ifinfomsg)+128);
+ int size = NLMSG_SPACE(sizeof(struct ifinfomsg) +
INET6_IFINFO_RTA_SPACE);
skb = alloc_skb(size, GFP_ATOMIC);
if (!skb) {
@@ -3252,6 +3266,11 @@ void inet6_ifinfo_notify(int event, stru
netlink_broadcast(rtnl, skb, 0, RTNLGRP_IPV6_IFINFO, GFP_ATOMIC);
}
+/* Maximum length of prefix_cacheinfo attributes */
+#define INET6_PREFIX_RTA_SPACE \
+ RTA_SPACE(sizeof(((struct prefix_info *)NULL)->prefix)) /*
ADDRESS */ + \
+ RTA_SPACE(sizeof(struct prefix_cacheinfo)) /* CACHEINFO */
+
static int inet6_fill_prefix(struct sk_buff *skb, struct inet6_dev *idev,
struct prefix_info *pinfo, u32 pid, u32 seq,
int event, unsigned int flags)
@@ -3296,7 +3315,7 @@ static void inet6_prefix_notify(int even
struct prefix_info *pinfo)
{
struct sk_buff *skb;
- int size = NLMSG_SPACE(sizeof(struct prefixmsg)+128);
+ int size = NLMSG_SPACE(sizeof(struct prefixmsg) +
INET6_PREFIX_RTA_SPACE);
skb = alloc_skb(size, GFP_ATOMIC);
if (!skb) {
--
YOSHIFUJI Hideaki @ USAGI Project <[EMAIL PROTECTED]>
GPG-FP : 9022 65EB 1ECF 3AD1 0BDF 80D8 4807 F894 E062 0EEA
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