diff options
| author | Denys Vlasenko <vda.linux@googlemail.com> | 2018-02-27 13:03:44 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2018-02-27 13:03:44 +0100 |
| commit | d82ea2ba8f9486d338b3aefe161afd4f77ce7a86 (patch) | |
| tree | b07fd8b2e617dd973f2ea39c448c1fd079bd5677 /networking/tcpudp.c | |
| parent | 0e0209ac5312fb0a4cf740f59e3564c6549f4d77 (diff) | |
| download | busybox-d82ea2ba8f9486d338b3aefe161afd4f77ce7a86.tar.gz | |
tcpudp: shrink per-host rate-limiting code
function old new delta
tcpudpsvd_main 1775 1780 +5
ipsvd_perhost_add 108 107 -1
cclen 4 - -4
cc 4 - -4
ipsvd_perhost_init 30 25 -5
ipsvd_perhost_remove 80 44 -36
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 1/3 up/down: 5/-50) Total: -45 bytes
text data bss dec hex filename
933358 473 6852 940683 e5a8b busybox_old
933326 473 6844 940643 e5a63 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking/tcpudp.c')
| -rw-r--r-- | networking/tcpudp.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/networking/tcpudp.c b/networking/tcpudp.c index 2feb63a01..a90e3f80a 100644 --- a/networking/tcpudp.c +++ b/networking/tcpudp.c @@ -127,6 +127,7 @@ struct globals { unsigned cur_per_host; unsigned cnum; unsigned cmax; + struct hcc *cc; char **env_cur; char *env_var[1]; /* actually bigger */ } FIX_ALIASING; @@ -229,7 +230,7 @@ static void sig_child_handler(int sig UNUSED_PARAM) while ((pid = wait_any_nohang(&wstat)) > 0) { if (max_per_host) - ipsvd_perhost_remove(pid); + ipsvd_perhost_remove(G.cc, pid); if (cnum) cnum--; if (verbose) @@ -347,7 +348,7 @@ int tcpudpsvd_main(int argc UNUSED_PARAM, char **argv) signal(SIGPIPE, SIG_IGN); if (max_per_host) - ipsvd_perhost_init(cmax); + G.cc = ipsvd_perhost_init(cmax); local_port = bb_lookup_port(argv[1], tcp ? "tcp" : "udp", 0); lsa = xhost2sockaddr(argv[0], local_port); @@ -422,7 +423,7 @@ int tcpudpsvd_main(int argc UNUSED_PARAM, char **argv) /* Drop connection immediately if cur_per_host > max_per_host * (minimizing load under SYN flood) */ remote_addr = xmalloc_sockaddr2dotted_noport(&remote.u.sa); - cur_per_host = ipsvd_perhost_add(remote_addr, max_per_host, &hccp); + cur_per_host = ipsvd_perhost_add(G.cc, remote_addr, max_per_host, &hccp); if (cur_per_host > max_per_host) { /* ipsvd_perhost_add detected that max is exceeded * (and did not store ip in connection table) */ |