catalinux / force_bind (public) (License: GPLv3) (since 2016-03-01) (hash sha1)
Force binding on a specific IP and/or port.
Clone URLs: https://rocketgit.com/user/catalinux/force_bind ssh://rocketgit@ssh.rocketgit.com/user/catalinux/force_bind git://git.rocketgit.com/user/catalinux/force_bind
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List of commits:
Subject Hash Author Date (UTC)
Added possibility to force skb priority field (SO_PRIORITY). 9b4b2a6b03ff7573041a7ed96c86e7bcda86c580 Catalin(ux) M. BOIE 2011-08-06 21:55:43
Added support for FWMARK. 648b09b84fcd5bc17aaa7d6ba2bf2bfeeea583f7 Catalin(ux) M. BOIE 2011-08-06 21:35:23
Added support for IPv6 flowinfo (class + label). c23cc6042893fb98986b5aa38c146b7aec488079 Catalin(ux) M. BOIE 2011-08-06 21:11:46
Added support for connecting clients (socket -> connect or socket -> sendto). 8f94255890a99d4890206e53f031ffad79c55866 Catalin(ux) M. BOIE 2011-08-05 21:15:38
Bump version to 0.7. 1a51b690a50c482c9e727b3e8e129bbc2890f600 Catalin(ux) M. BOIE 2011-06-21 17:06:25
Corrected description and license. 708b98d98bb5704f3bd265928f07cc94c18bd212 Catalin(ux) M. BOIE 2011-06-21 17:06:04
Bump version to 0.6. cb4ef5c142753802f9dcd2410d094f9914e8273c Catalin(ux) M. BOIE 2011-06-21 16:56:15
Added support for separate FORCE_ADDR for IPv4 and IPv6, MSS, TTL etc. e32e97cafe360f192283168d76c327559282e24d Catalin(ux) M. BOIE 2011-06-21 16:55:12
Added TODO to %doc rpm section. 086dbb2e078955dddf83cbfd65998334d6db81e4 Catalin(ux) M. BOIE 2010-12-19 19:46:20
Added MSS. 9a5c3676567cb92e6c0b4106c2b97cd2da2273a5 Catalin(ux) M. BOIE 2010-12-14 17:00:37
Added TOS test script. a4b1b05b27b3eaa06a4a71f656e1b80731d1b8ff Catalin(ux) M. BOIE 2010-12-14 16:55:03
Ignore Changelog-last file. 1bfa5decd11f4fd95e4b002d88e2a2e04c747855 Catalin(ux) M. BOIE 2010-12-14 16:54:36
Added KA. ec9b4556e51ca9a807400910f8ca6d698f9ad670 Catalin(ux) M. BOIE 2010-12-14 16:53:58
Bump up the version to 0.5. f7ba7f0feb49ac4942d85903d31e085f1ffa6149 Catalin(ux) M. BOIE 2010-11-07 23:16:25
Duilder updates. 4d3691f340591f68f9b0ae704da24b4352957f05 Catalin(ux) M. BOIE 2010-11-07 23:15:29
Added support to force TOS by using env var FORCE_NET_TOS. 319cfbee315a0c6889791b122fdb8069aa2ffdf1 Catalin(ux) M. BOIE 2010-11-07 23:14:23
No need for duilder_release. I will use a global one. 15a59294aa3922e58bff8aaa9de7cc06dc44fe1e Catalin(ux) M. BOIE 2010-10-27 20:43:15
TODO in. 9ea8407b8a2767debcf7597bbfc1bddfe44c78eb Catalin(ux) M. BOIE 2010-10-27 20:21:13
Typo. 2282d895e91cf2b02a7b67d933af2c68db5798b6 Catalin(ux) M. BOIE 2010-10-27 19:54:40
Aded license information to README file. fe8071fd2d9f912136fb7fa22f289ddc63cf0f14 Catalin(ux) M. BOIE 2010-10-27 19:46:48
Commit 9b4b2a6b03ff7573041a7ed96c86e7bcda86c580 - Added possibility to force skb priority field (SO_PRIORITY).
Author: Catalin(ux) M. BOIE
Author date (UTC): 2011-08-06 21:55
Committer name: Catalin(ux) M. BOIE
Committer date (UTC): 2011-08-06 21:55
Parent(s): 648b09b84fcd5bc17aaa7d6ba2bf2bfeeea583f7
Signing key:
Tree: 59b6189b626239f6f7dcdddad302927b4acc3245
File Lines added Lines deleted
README 8 0
force_bind.c 27 0
test_client3.sh 1 1
File README changed (mode: 100644) (index 04d6eb2..b207496)
... ... Examples:
93 93 export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
94 94 your_program_here your_program_here
95 95
96 14: Force priority (between 0 and 6 for non-root users). You can
97 use 'tc' command from iproute to set-up 'prio' qdisc and to
98 assign prio to queues:
99 export FORCE_NET_VERBOSE=1
100 export FORCE_NET_PRIO=2
101 export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
102 your_program_here
103
96 104 Installation: Installation:
97 105 - ./configure - ./configure
98 106 - make - make
File force_bind.c changed (mode: 100644) (index 0258c5d..0fdac3c)
... ... static unsigned int force_nodelay = 0, nodelay;
111 111 static unsigned long long bw_limit_per_socket = 0; static unsigned long long bw_limit_per_socket = 0;
112 112 static unsigned int force_flowinfo = 0, flowinfo; static unsigned int force_flowinfo = 0, flowinfo;
113 113 static unsigned int force_fwmark = 0, fwmark; static unsigned int force_fwmark = 0, fwmark;
114 static unsigned int force_prio = 0, prio;
114 115 static struct private bw_global; static struct private bw_global;
115 116 static struct info fdinfo; static struct info fdinfo;
116 117 static unsigned int verbose = 0; static unsigned int verbose = 0;
 
... ... static void init(void)
386 387 fwmark); fwmark);
387 388 } }
388 389
390 /* prio */
391 x = getenv("FORCE_NET_PRIO");
392 if (x != NULL) {
393 force_prio = 1;
394 prio = strtoul(x, NULL, 0);
395 my_syslog(LOG_INFO, "force_bind: Force prio to %u.\n",
396 prio);
397 }
398
389 399
390 400 old_bind = dlsym(RTLD_NEXT, "bind"); old_bind = dlsym(RTLD_NEXT, "bind");
391 401 if (old_bind == NULL) { if (old_bind == NULL) {
 
... ... static int set_fwmark(int sockfd)
603 613 return ret; return ret;
604 614 } }
605 615
616 static int set_prio(int sockfd)
617 {
618 int ret;
619
620 if (force_prio == 0)
621 return 0;
622
623 ret = old_setsockopt(sockfd, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio));
624 my_syslog(LOG_INFO, "force_bind: changing fwmark to 0x%x (ret=%d(%s)) [%d].\n",
625 prio, ret, strerror(errno), sockfd);
626
627 return ret;
628 }
629
606 630 /* /*
607 631 * Alters a struct sockaddr, based on environment variables * Alters a struct sockaddr, based on environment variables
608 632 */ */
 
... ... int setsockopt(int sockfd, int level, int optname, const void *optval,
753 777 return set_reuseaddr(sockfd); return set_reuseaddr(sockfd);
754 778 if (optname == SO_MARK) if (optname == SO_MARK)
755 779 return set_fwmark(sockfd); return set_fwmark(sockfd);
780 if (optname == SO_PRIORITY)
781 return set_prio(sockfd);
756 782 } }
757 783
758 784 if (level == IPPROTO_IP) { if (level == IPPROTO_IP) {
 
... ... void socket_create_callback(const int sockfd, int domain, int type)
808 834 set_reuseaddr(sockfd); set_reuseaddr(sockfd);
809 835 set_nodelay(sockfd); set_nodelay(sockfd);
810 836 set_fwmark(sockfd); set_fwmark(sockfd);
837 set_prio(sockfd);
811 838
812 839 p.domain = domain; p.domain = domain;
813 840 p.type = type; p.type = type;
File test_client3.sh copied from file test_client2.sh (similarity 81%) (mode: 100755) (index f988d19..32459ed)
1 1 #!/bin/sh #!/bin/sh
2 2
3 3 export FORCE_NET_VERBOSE=1 export FORCE_NET_VERBOSE=1
4 export FORCE_NET_FWMARK=0x1234
4 export FORCE_NET_PRIO=2
5 5
6 6 export LD_PRELOAD="${LD_PRELOAD}:./force_bind.so" export LD_PRELOAD="${LD_PRELOAD}:./force_bind.so"
7 7
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