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authorDenys Vlasenko2019-05-22 13:54:46 +0200
committerDenys Vlasenko2019-05-22 13:54:46 +0200
commit028c5aa18b5273c029f0278232d922ee1a164de6 (patch)
treef57dbcb9445ce4878f74789872ed123491f705c2 /networking/libiproute/libnetlink.h
parent84fc645605827d53aa3e749dfff309978b1bc73d (diff)
downloadbusybox-028c5aa18b5273c029f0278232d922ee1a164de6.zip
busybox-028c5aa18b5273c029f0278232d922ee1a164de6.tar.gz
ip: use rtnl_send_check() on flush commands, closes 6962
function old new delta rtnl_send_check - 160 +160 xrtnl_wilddump_request 64 66 +2 ipneigh_list_or_flush 714 706 -8 rtnl_send 69 - -69 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 1/1 up/down: 162/-77) Total: 85 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking/libiproute/libnetlink.h')
-rw-r--r--networking/libiproute/libnetlink.h19
1 files changed, 17 insertions, 2 deletions
diff --git a/networking/libiproute/libnetlink.h b/networking/libiproute/libnetlink.h
index 51bee2d..1b082e0 100644
--- a/networking/libiproute/libnetlink.h
+++ b/networking/libiproute/libnetlink.h
@@ -20,7 +20,7 @@ struct rtnl_handle {
extern void xrtnl_open(struct rtnl_handle *rth) FAST_FUNC;
#define rtnl_close(rth) (close((rth)->fd))
-extern int xrtnl_wilddump_request(struct rtnl_handle *rth, int fam, int type) FAST_FUNC;
+extern void xrtnl_wilddump_request(struct rtnl_handle *rth, int fam, int type) FAST_FUNC;
extern int rtnl_dump_request(struct rtnl_handle *rth, int type, void *req, int len) FAST_FUNC;
extern int xrtnl_dump_filter(struct rtnl_handle *rth,
int (*filter)(const struct sockaddr_nl*, struct nlmsghdr *n, void*) FAST_FUNC,
@@ -34,8 +34,23 @@ extern int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n, pid_t peer,
int (*junk)(struct sockaddr_nl *,struct nlmsghdr *n, void *),
void *jarg) FAST_FUNC;
-extern int rtnl_send(struct rtnl_handle *rth, char *buf, int) FAST_FUNC;
+int rtnl_send_check(struct rtnl_handle *rth, const void *buf, int len) FAST_FUNC;
+//TODO: pass rth->fd instead of full rth?
+static ALWAYS_INLINE void rtnl_send(struct rtnl_handle *rth, const void *buf, int len)
+{
+ // Used to be:
+ //struct sockaddr_nl nladdr;
+ //memset(&nladdr, 0, sizeof(nladdr));
+ //nladdr.nl_family = AF_NETLINK;
+ //return xsendto(rth->fd, buf, len, (struct sockaddr*)&nladdr, sizeof(nladdr));
+ // iproute2-4.2.0 simplified the above to:
+ //return send(rth->fd, buf, len, 0);
+
+ // We are using even shorter:
+ xwrite(rth->fd, buf, len);
+ // and convert to void, inline.
+}
extern int addattr32(struct nlmsghdr *n, int maxlen, int type, uint32_t data) FAST_FUNC;
extern int addattr_l(struct nlmsghdr *n, int maxlen, int type, void *data, int alen) FAST_FUNC;