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Add HTTP/TLS obfuscating. [SIP001] (#1009)

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Add experimental HTTP/TLS obfuscating as an **optional extension** of shadowsocks protocol.

More discussions can be found here: https://github.com/shadowsocks/shadowsocks-org/issues/26

As this feature is still a SIP (Shadowsocks Improvement Proposal), it's very unstable and experimental. So, 

1. Don't enable it unless you know what it is.
2. Be very careful when using it in production environment.
This commit is contained in:
Max Lv
2016-12-27 02:53:25 -06:00
committed by GitHub
parent 9b2b394249
commit 8cb4f81eba
45 changed files with 2214 additions and 419 deletions
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src/manager.c
+12 -1
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@@ -172,6 +172,10 @@ construct_command_line(struct manager_ctx *manager, struct server *server)
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " --mtu %d", manager->mtu);
}
if (manager->obfs) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " --obfs %s", manager->obfs);
}
for (i = 0; i < manager->nameserver_num; i++) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " -d %s", manager->nameservers[i]);
@@ -611,6 +615,7 @@ main(int argc, char **argv)
char *conf_path = NULL;
char *iface = NULL;
char *manager_address = NULL;
char *obfs = NULL;
int auth = 0;
int fast_open = 0;
@@ -636,6 +641,7 @@ main(int argc, char **argv)
{ "manager-address", required_argument, 0, 0 },
{ "executable", required_argument, 0, 0 },
{ "mtu", required_argument, 0, 0 },
{ "obfs", required_argument, 0, 0 },
{ "help", no_argument, 0, 0 },
{ 0, 0, 0, 0 }
};
@@ -658,8 +664,9 @@ main(int argc, char **argv)
executable = optarg;
} else if (option_index == 4) {
mtu = atoi(optarg);
LOGI("set MTU to %d", mtu);
} else if (option_index == 5) {
obfs = optarg;
} else if (option_index == 6) {
usage();
exit(EXIT_SUCCESS);
}
@@ -764,6 +771,9 @@ main(int argc, char **argv)
if (mtu == 0) {
mtu = conf->mtu;
}
if (obfs == 0) {
obfs = conf->obfs;
}
#ifdef HAVE_SETRLIMIT
if (nofile == 0) {
nofile = conf->nofile;
@@ -840,6 +850,7 @@ main(int argc, char **argv)
manager.nameservers = nameservers;
manager.nameserver_num = nameserver_num;
manager.mtu = mtu;
manager.obfs = obfs;
#ifdef HAVE_SETRLIMIT
manager.nofile = nofile;
#endif