Akkariin/proxychains-ng
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Add capability to select a defined chain via environment variable. Many bug fixes to configfile loader.

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This commit is contained in:
crass 2013-06-23 19:22:48 +07:00
parent cf5eff0b8a
commit a83e7a7003
3 changed files with 63 additions and 28 deletions
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2
src/common.h
View File

@ -2,8 +2,10 @@
#define COMMON_H
#define PROXYCHAINS_CONF_FILE_ENV_VAR "PROXYCHAINS_CONF_FILE"
#define PROXYCHAINS_CHAIN_ENV_VAR "PROXYCHAINS_CHAIN"
#define PROXYCHAINS_QUIET_MODE_ENV_VAR "PROXYCHAINS_QUIET_MODE"
#define PROXYCHAINS_CONF_FILE "proxychains.conf"
#define PROXYCHAINS_DEFAULT_CHAIN "ProxyList"
#define LOG_PREFIX "[proxychains] "
#ifndef SYSCONFDIR
#define SYSCONFDIR "/etc"

1
src/core.h
View File

@ -99,6 +99,7 @@ typedef struct {
int remote_dns_subnet; // -1 means no remote dns
int tcp_read_time_out;
int tcp_connect_time_out;
proxy_chain *selected;
} proxy_chain_list;
int connect_proxy_chain (int sock, ip_type target_ip, unsigned short target_port,

88
src/libproxychains.c
View File

@ -63,7 +63,9 @@ static int init_l = 0;
static inline void get_chain_data(proxy_chain_list *pc_list);
static inline int get_chain_type(char *buff, chain_type *ct);
int proxy_chain_list_load(proxy_chain_list *pc_list);
int proxy_chain_load_pdata(proxy_chain *pc, proxy_data *pd_list, int count);
proxy_chain* proxy_chain_list_set_selected(proxy_chain_list *pc_list, const char *chain_name);
static void* load_sym(char* symname, void* proxyfunc) {
@ -96,26 +98,7 @@ static void do_init(void) {
core_initialize();
at_init();
/* Create global library data */
proxychains_chain_list = (proxy_chain_list*)malloc(sizeof(proxy_chain_list));
if (proxychains_chain_list == NULL) {
proxychains_write_log(LOG_PREFIX "Error failed to allocate proxy list object\n");
exit(1);
}
/* Initialize proxychain library data */
proxychains_chain_list->remote_dns_subnet = -1; // -1 means no remote dns
//~ proxychains_chain_list->pc = NULL;
proxychains_chain_list->count = 0;
//~ proxychains_chain_list->localnet_addr = NULL;
proxychains_chain_list->num_localnet_addr = 0;
proxychains_chain_list->tcp_read_time_out = 4 * 1000;
proxychains_chain_list->tcp_connect_time_out = 10 * 1000;
/* read the config file */
get_chain_data(proxychains_chain_list);
PDEBUG("Finished loading chain data\n");
DUMP_PROXY_CHAIN(proxychains_chain_list->pc[0]);
proxy_chain_list_load(proxychains_chain_list);
proxychains_write_log(LOG_PREFIX "DLL init\n");
@ -197,9 +180,6 @@ static void get_chain_data(proxy_chain_list *pc_list) {
memset(&pd_list[count], 0, sizeof(proxy_data));
pd_list[count].ps = PLAY_STATE;
pc_curr->ct = DYNAMIC_TYPE;
pc_curr->tcp_read_time_out = pc_list->tcp_read_time_out;
pc_curr->tcp_connect_time_out = pc_list->tcp_connect_time_out;
port_n = 0;
if(strstr(buff, "tcp_read_time_out")) {
@ -208,10 +188,13 @@ static void get_chain_data(proxy_chain_list *pc_list) {
sscanf(buff, "%s %d", label, &pc_curr->tcp_connect_time_out);
} else if(strstr(buff, "chain_len")) {
char *pc;
int len;
int len = 1;
pc = strchr(buff, '=');
len = atoi(++pc);
pc_curr->max_chain = (len ? len : 1);
if ((pc=strchr(buff, '=')) == NULL) {
fprintf(stderr, "Warning: chain_len must use '='\n");
} else
len = atoi(++pc);
pc_curr->max_chain = len;
} else if(!get_chain_type(buff, &pc_curr->ct)) {
;
} else {
@ -240,7 +223,7 @@ static void get_chain_data(proxy_chain_list *pc_list) {
count++;
} else {
char *s1, *s2;
if((s1=strstr(buff, "[")) && (s1 < (s2=strstr(buff, "]")))) {
if((s1=(strstr(buff, "["))+1) && (s1 < (s2=strstr(buff, "]")))) {
/* If have a previous chain stored in the temp chain, copy
to global lists. */
if (count) {
@ -260,6 +243,7 @@ static void get_chain_data(proxy_chain_list *pc_list) {
proxychains_write_log(LOG_PREFIX "Error failed to allocate proxy chain object\n");
exit(1);
}
pc_curr->ct = DYNAMIC_TYPE;
pc_curr->count = 0;
pc_curr->offset = 0;
pc_curr->max_chain = 1;
@ -359,6 +343,43 @@ int get_chain_type(char *buff, chain_type *ct) {
return 0;
}
int proxy_chain_list_load(proxy_chain_list *pc_list) {
char *env = NULL;
/* Create global library data */
proxychains_chain_list = (proxy_chain_list*)malloc(sizeof(proxy_chain_list));
if (proxychains_chain_list == NULL) {
proxychains_write_log(LOG_PREFIX "Error failed to allocate proxy list object\n");
exit(1);
}
/* Initialize proxychain library data */
proxychains_chain_list->remote_dns_subnet = -1; // -1 means no remote dns
//~ proxychains_chain_list->pc = NULL;
proxychains_chain_list->count = 0;
//~ proxychains_chain_list->localnet_addr = NULL;
proxychains_chain_list->num_localnet_addr = 0;
proxychains_chain_list->tcp_read_time_out = 4 * 1000;
proxychains_chain_list->tcp_connect_time_out = 10 * 1000;
//~ proxychains_chain_list->chain_selection = PROXYCHAINS_DEFAULT_CHAIN;
proxychains_chain_list->selected = NULL;
/* read the config file */
get_chain_data(proxychains_chain_list);
PDEBUG("Finished loading chain data\n");
DUMP_PROXY_CHAIN_LIST(proxychains_chain_list);
//~ DUMP_PROXY_CHAIN(proxychains_chain_list->pc[0]);
env = getenv(PROXYCHAINS_CHAIN_ENV_VAR);
if(!env)
env = PROXYCHAINS_DEFAULT_CHAIN;
if (!proxy_chain_list_set_selected(proxychains_chain_list, env)) {
proxychains_write_log(LOG_PREFIX "Error chain list \"%s\" not found\n", env);
exit(1);
}
return 0;
}
int proxy_chain_load_pdata(proxy_chain *pc, proxy_data *pd_list, int count) {
pc->count = count;
pc->pd = (proxy_data*)malloc(sizeof(proxy_data)*count);
@ -371,6 +392,17 @@ int proxy_chain_load_pdata(proxy_chain *pc, proxy_data *pd_list, int count) {
return 0;
}
proxy_chain* proxy_chain_list_set_selected(proxy_chain_list *pc_list, const char *chain_name) {
int i = 0;
for (; i < pc_list->count; i++) {
if (!strcmp(chain_name, pc_list->pc[i]->name)) {
pc_list->selected = pc_list->pc[i];
return pc_list->pc[i];
}
}
return NULL;
}
/******* HOOK FUNCTIONS *******/
int close(int fd) {
@ -433,7 +465,7 @@ int connect(int sock, const struct sockaddr *addr, unsigned int len) {
ret = connect_proxy_chain(sock,
dest_ip,
SOCKPORT(*addr),
proxychains_chain_list->pc[0]);
proxychains_chain_list->selected);
fcntl(sock, F_SETFL, flags);
if(ret != SUCCESS)