commit 8bb2ba13c1cc45d5979c1a3eaeed899e29991aed Author: George Kadianakis <desnacked@riseup.net> Date: Mon Jul 1 16:45:21 2013 +0300 Extract ARGS from SMETHOD line and attach them to transport. --- src/or/transports.c | 29 ++++++++++++++++++++++++----- src/or/transports.h | 3 +++ 2 files changed, 27 insertions(+), 5 deletions(-) diff --git a/src/or/transports.c b/src/or/transports.c index cfec703..d1c34b5 100644 --- a/src/or/transports.c +++ b/src/or/transports.c @@ -137,7 +137,8 @@ static smartlist_t *transport_list = NULL; SOCKS version <b>socks_ver</b>. */ static transport_t * transport_new(const tor_addr_t *addr, uint16_t port, - const char *name, int socks_ver) + const char *name, int socks_ver, + const char *extra_info_args) { transport_t *t = tor_malloc_zero(sizeof(transport_t)); @@ -145,6 +146,8 @@ transport_new(const tor_addr_t *addr, uint16_t port, t->port = port; t->name = tor_strdup(name); t->socks_version = socks_ver; + if (extra_info_args) + t->extra_info_args = tor_strdup(extra_info_args); return t; } @@ -157,6 +160,7 @@ transport_free(transport_t *transport) return; tor_free(transport->name); + tor_free(transport->extra_info_args); tor_free(transport); } @@ -324,7 +328,7 @@ int transport_add_from_config(const tor_addr_t *addr, uint16_t port, const char *name, int socks_ver) { - transport_t *t = transport_new(addr, port, name, socks_ver); + transport_t *t = transport_new(addr, port, name, socks_ver, NULL); int r = transport_add(t); @@ -941,7 +945,7 @@ parse_smethod_line(const char *line, managed_proxy_t *mp) smartlist_t *items = NULL; char *method_name=NULL; - + char *args_string=NULL; char *addrport=NULL; tor_addr_t tor_addr; char *address=NULL; @@ -958,6 +962,9 @@ parse_smethod_line(const char *line, managed_proxy_t *mp) goto err; } + /* Example of legit SMETHOD line: + SMETHOD obfs2 0.0.0.0:25612 ARGS:secret=supersekrit,key=superkey */ + tor_assert(!strcmp(smartlist_get(items,0),PROTO_SMETHOD)); method_name = smartlist_get(items,1); @@ -985,7 +992,19 @@ parse_smethod_line(const char *line, managed_proxy_t *mp) goto err; } - transport = transport_new(&tor_addr, port, method_name, PROXY_NONE); + if (smartlist_len(items) > 3) { + /* Seems like there are also some [options] in the SMETHOD line. + Let's see if we can parse them. */ + char *options_string = smartlist_get(items, 3); + log_debug(LD_CONFIG, "Got options_string: %s", options_string); + if (!strcmpstart(options_string, "ARGS:")) { + args_string = options_string+strlen("ARGS:"); + log_debug(LD_CONFIG, "Got ARGS: %s", args_string); + } + } + + transport = transport_new(&tor_addr, port, method_name, + PROXY_NONE, args_string); if (!transport) goto err; @@ -1077,7 +1096,7 @@ parse_cmethod_line(const char *line, managed_proxy_t *mp) goto err; } - transport = transport_new(&tor_addr, port, method_name, socks_ver); + transport = transport_new(&tor_addr, port, method_name, socks_ver, NULL); if (!transport) goto err; diff --git a/src/or/transports.h b/src/or/transports.h index cc3e018..525d48a 100644 --- a/src/or/transports.h +++ b/src/or/transports.h @@ -25,6 +25,9 @@ typedef struct transport_t { /** Boolean: We are re-parsing our transport list, and we are going to remove * this one if we don't find it in the list of configured transports. */ unsigned marked_for_removal : 1; + /** Arguments for this transport that must be written to the + extra-info descriptor. */ + char *extra_info_args; } transport_t; void mark_transport_list(void);