update: shadowsocks bootstrap framework

include/common.h

@@ -1,29 +1,16 @@
 #ifndef _COMMON_H_
 #define _COMMON_H_
 
-#define VERSION "0.9.1"
+#define VERSION "0.9.2"
 
 #define RANDOM_PORT_START 41952
 #define RANDOM_PORT_END   65535
 
-typedef struct {
-    int is_udp_proxy;
-    char *server_addr, *client_addr;
-    char *server_port, *client_port;
-    char *password;
-    char *method;
-    char *timeout;
-    int fastopen;
-    char *plugin;
-    char *plugin_opts;
-    char *shadowsocks;
-    char **shadowsocks_opts;
-} bootstrap_info;
-
-char* int_to_string(int num);
 char* new_string(char *str);
+char* int_to_string(int num);
 char* read_file(char *file_name);
-void params_load(char *ss_default, bootstrap_info *info);
-void args_decode(int argc, char **argv, bootstrap_info *info);
+char** string_list_append(char **string_list, char *data);
+
+void init(int argc, char **argv, char *help_msg);
 
 #endif

include/help.h

@@ -1,9 +0,0 @@
-#ifndef _HELP_H_
-#define _HELP_H_
-
-extern char *local_help_msg;
-extern char *server_help_msg;
-
-void is_show_help(int argc, char **argv, char *help_msg);
-
-#endif

include/load.h

@@ -1,6 +1,20 @@
 #ifndef _LOAD_H_
 #define _LOAD_H_
 
-void load_info(int argc, char **argv);
+typedef struct {
+    int is_udp_proxy;
+    char *server_addr, *client_addr;
+    char *server_port, *client_port;
+    char *password;
+    char *method;
+    char *timeout;
+    int fastopen;
+    char *plugin;
+    char *plugin_opts;
+    char *shadowsocks;
+    char **shadowsocks_opts;
+} boot_info;
+
+boot_info* load_info(int argc, char **argv);
 
 #endif

include/sip003.h

@@ -0,0 +1,7 @@
+#ifndef _SIP003_H_
+#define _SIP003_H_
+
+//void params_load(char *ss_default, bootstrap_info *info);
+//void args_decode(int argc, char **argv, bootstrap_info *info);
+
+#endif

include/logger.h → include/utils/logger.h

@@ -19,7 +19,7 @@ enum {
 #define log_error(...) log_printf(LOG_ERROR, __VA_ARGS__)
 #define log_fatal(...) log_printf(LOG_FATAL, __VA_ARGS__)
 
-extern int log_level;
+extern int LOG_LEVEL;
 void log_printf(int level, const char *fmt, ...);
 
 #endif

src/CMakeLists.txt

@@ -1,19 +1,12 @@
 cmake_minimum_required(VERSION 2.8.12)
 
 include_directories(${PROJECT_SOURCE_DIR}/include)
-include_directories(/usr/lib/i386-linux-gnu/glib-2.0/include)
-include_directories(/usr/lib/x86_64-linux-gnu/glib-2.0/include)
-include_directories(/usr/lib/aarch64-linux-gnu/glib-2.0/include)
-include_directories(/usr/lib64/glib-2.0/include)
-include_directories(/usr/lib/glib-2.0/include)
-include_directories(/usr/include/glib-2.0)
+include_directories(${PROJECT_SOURCE_DIR}/include/utils)
 
-aux_source_directory(${PROJECT_SOURCE_DIR}/src SRC)
-list(REMOVE_ITEM SRC ${PROJECT_SOURCE_DIR}/src/local.c)
-list(REMOVE_ITEM SRC ${PROJECT_SOURCE_DIR}/src/server.c)
+add_subdirectory(utils)
 
-add_executable(ss-bootstrap-local local.c ${SRC})
-target_link_libraries(ss-bootstrap-local glib-2.0 pthread)
+add_executable(ss-bootstrap-local local.c common.c load.c)
+target_link_libraries(ss-bootstrap-local utils pthread)
 
-add_executable(ss-bootstrap-server server.c ${SRC})
-target_link_libraries(ss-bootstrap-server glib-2.0 pthread)
+add_executable(ss-bootstrap-server local.c common.c load.c)
+target_link_libraries(ss-bootstrap-server utils pthread)

src/common.c

@@ -1,39 +1,11 @@
-#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include "cJSON.h"
-#include "common.h"
-#include "network.h"
-#include "process.h"
 #include "logger.h"
+#include "common.h"
 
-//int is_udp_proxy = 1;
-//char *server_addr = NULL, *client_addr = NULL;
-//char *server_port = NULL, *client_port = NULL;
-//char *password = NULL;
-//char *method = NULL;
-//char *timeout = NULL;
-//int fastopen = 0;
-//char *plugin = NULL;
-//char *plugin_opts = NULL;
-//char *shadowsocks = NULL;
-//char **shadowsocks_opts; // init before usage
-
-void args_dump();
-//void error_exit(char *msg);
-char* int_to_string(int num);
-void pack_shadowsocks_params(bootstrap_info *info);
-char* read_file(char *file_name);
-//void json_decode(char *json_content);
-void add_shadowsocks_option(char *option, char **opts);
-void extra_options_decode(char *extra_opts, char **opts);
-//void params_load(char *ss_default, bootstrap_info *info);
-
-//void error_exit(char *msg) { // throw error message with exit-code 1
-//    printf("[Shadowsocks Bootstrap] ERROR: %s.\n", msg);
-//    printf("[Shadowsocks Bootstrap] exit with error.\n");
-//    exit(1);
-//}
+char* new_string(char *str) {
+    return strcpy((char*)malloc(strlen(str) + 1), str);
+}
 
 char* int_to_string(int num) { // int -> string
     if (num < 0) {
@@ -50,46 +22,15 @@ char* int_to_string(int num) { // int -> string
     return str;
 }
 
-void params_load(char *ss_default, bootstrap_info *info) { // load shadowsocks and plugin params
-    if (info->shadowsocks == NULL) {
-        info->shadowsocks = ss_default;
-    }
-    info->shadowsocks_opts[0] = info->shadowsocks; // fill with file name
-    if (info->plugin != NULL) { // with plugin
-        char *rand_port = int_to_string(get_available_port(RANDOM_PORT_START, RANDOM_PORT_END));
-        SS_REMOTE_HOST = info->server_addr;
-        SS_REMOTE_PORT = info->server_port;
-        SS_LOCAL_HOST = "127.0.0.1";
-        SS_LOCAL_PORT = rand_port;
-        info->server_addr = SS_LOCAL_HOST;
-        info->server_port = SS_LOCAL_PORT;
-        SS_PLUGIN_OPTIONS = info->plugin_opts;
-    }
-    pack_shadowsocks_params(info);
-    shadowsocks_args = info->shadowsocks_opts;
-    if (info->plugin == NULL) {
-        plugin_file = NULL;
-    } else {
-        plugin_file = info->plugin;
-    }
+char** string_list_append(char **string_list, char *data) {
+    int num = 0;
+    while(string_list[num++] != NULL); // get string list size
+    string_list = (char**)realloc(string_list, sizeof(char**) * (num + 1));
+    string_list[num - 1] = new_string(data);
+    string_list[num] = NULL; // list end sign
+    return string_list;
 }
 
-//void args_init() { // init bootstrap arguments
-//    is_udp_proxy = 1; // enable udp proxy in default
-//    server_addr = client_addr = NULL;
-//    server_port = client_port = NULL;
-//    password = NULL;
-//    method = NULL;
-//    timeout = NULL;
-//    fastopen = 0;
-//    plugin = NULL;
-//    plugin_opts = NULL;
-//    shadowsocks = NULL;
-//    shadowsocks_opts = (char**)malloc(sizeof(char*) * 2);
-//    shadowsocks_opts[0] = ""; // reserved for program name
-//    shadowsocks_opts[1] = NULL;
-//}
-
 char* read_file(char *file_name) { // read file content
     log_debug("Start read file -> %s", file_name);
     FILE *pfile = fopen(file_name, "rb");
@@ -110,86 +51,18 @@ char* read_file(char *file_name) { // read file content
     return file_content;
 }
 
-
-
-void add_shadowsocks_option(char *option, char **opts) { // add shadowsocks options
-    int opt_num = 0;
-    while(opts[opt_num++] != NULL); // get options number
-    opts = (char**)realloc(opts, sizeof(char**) * (opt_num + 1));
-    opts[opt_num - 1] = strcpy((char*)malloc(strlen(option) + 1), option);
-    opts[opt_num] = NULL; // end sign
-}
-
-void pack_shadowsocks_params(bootstrap_info *info) { // packaging shadowsocks parameters
-    if (info->server_addr != NULL) {
-        add_shadowsocks_option("-s", info->shadowsocks_opts);
-        add_shadowsocks_option(info->server_addr, info->shadowsocks_opts);
-    }
-    if (info->client_addr != NULL) {
-        add_shadowsocks_option("-b", info->shadowsocks_opts);
-        add_shadowsocks_option(info->client_addr, info->shadowsocks_opts);
-    }
-    if (info->server_port != NULL) {
-        add_shadowsocks_option("-p", info->shadowsocks_opts);
-        add_shadowsocks_option(info->server_port, info->shadowsocks_opts);
-    }
-    if (info->client_port != NULL) {
-        add_shadowsocks_option("-l", info->shadowsocks_opts);
-        add_shadowsocks_option(info->client_port, info->shadowsocks_opts);
-    }
-    if (info->password != NULL) {
-        add_shadowsocks_option("-k", info->shadowsocks_opts);
-        add_shadowsocks_option(info->password, info->shadowsocks_opts);
-    }
-    if (info->method != NULL) {
-        add_shadowsocks_option("-m", info->shadowsocks_opts);
-        add_shadowsocks_option(info->method, info->shadowsocks_opts);
-    }
-    if (info->timeout != NULL) {
-        add_shadowsocks_option("-t", info->shadowsocks_opts);
-        add_shadowsocks_option(info->timeout, info->shadowsocks_opts);
-    }
-    if (info->fastopen) {
-        add_shadowsocks_option("--fast-open", info->shadowsocks_opts);
-    }
-}
-
-
-
-char* new_string(char *str) {
-    return strcpy((char*)malloc(strlen(str) + 1), str);
+void init(int argc, char **argv, char *help_msg) {
+    if (argc <= 1) { // with only one argument
+        printf("%s", help_msg);
+        exit(0);
     }
-
-void args_debug(bootstrap_info *info) {
-    if (info->is_udp_proxy) {
-        log_debug("is_udp_proxy = true");
-    } else {
-        log_debug("is_udp_proxy = false");
+    for (int i = 0; i < argc; ++i) {
+        if (!strcmp(argv[i], "--debug")) { // include `--debug`
+            LOG_LEVEL = LOG_DEBUG;
         }
-    printf("server_addr = %s\n", info->server_addr);
-    printf("client_addr = %s\n", info->client_addr);
-    printf("server_port = %s\n", info->server_port);
-    printf("client_port = %s\n", info->client_port);
-    printf("password = %s\n", info->password);
-    printf("method = %s\n", info->method);
-    printf("timeout = %s\n", info->timeout);
-    if (info->fastopen) {
-        printf("fastopen = true\n");
-    } else {
-        printf("fastopen = false\n");
+        if (!strcmp(argv[i], "-h") || !strcmp(argv[i], "--help")) { // include `-h` or `--help`
+            printf("%s", help_msg);
+            exit(0);
         }
-    printf("shadowsocks = %s\n", info->shadowsocks);
-    printf("plugin = %s\n", info->plugin);
-    printf("plugin_opts = %s\n", info->plugin_opts);
-    int num = 0;
-    printf("options:\n");
-    while(info->shadowsocks_opts[num] != NULL) {
-        printf("  '%s'\n", info->shadowsocks_opts[num]);
-        num++;
     }
 }
-
-
-//void args_dump() { // show parameter's content
-//
-//}

src/help.c

@@ -1,66 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "help.h"
-
-char *server_help_msg = "\n\
-ss-bootstrap-server\n\
-\n\
-    A simple program to make the original shadowsocks support SIP003 plugins.\n\
-\n\
-    -s <server_host>           Host name or IP address of your remote server.\n\
-    -p <server_port>           Port number of your remote server.\n\
-    -b <local_address>         Local address to bind.\n\
-    -l <local_port>            Port number of your local server.\n\
-\n\
-    -c <config_file>           Path to JSON config file.\n\
-    -k <password>              Password of your remote server.\n\
-    -m <method>                Encrypt method.\n\
-    -t <timeout>               Socket timeout in seconds.\n\
-    --fast-open                Enable TCP fast open (with Linux kernel 3.7+).\n\
-    --plugin <name>            Enable SIP003 plugin.\n\
-    --plugin-opts <options>    Set SIP003 plugin options.\n\
-    --shadowsocks <ssservre>   Set shadowsocks server program.\n\
-    --no-udp                   Do not use UDP proxy.\n\
-    -h, --help                 Print this message.\n\
-\n\
-";
-
-char *local_help_msg = "\n\
-ss-bootstrap-local\n\
-\n\
-    A simple program to make the original shadowsocks support SIP003 plugins.\n\
-\n\
-    -s <server_host>           Host name or IP address of your remote server.\n\
-    -p <server_port>           Port number of your remote server.\n\
-    -b <local_address>         Local address to bind.\n\
-    -l <local_port>            Port number of your local server.\n\
-\n\
-    -c <config_file>           Path to JSON config file.\n\
-    -k <password>              Password of your remote server.\n\
-    -m <method>                Encrypt method.\n\
-    -t <timeout>               Socket timeout in seconds.\n\
-    --fast-open                Enable TCP fast open (with Linux kernel 3.7+).\n\
-    --plugin <name>            Enable SIP003 plugin.\n\
-    --plugin-opts <options>    Set SIP003 plugin options.\n\
-    --shadowsocks <sslocal>    Set shadowsocks local program.\n\
-    --no-udp                   Do not use UDP proxy.\n\
-    -h, --help                 Print this message.\n\
-\n\
-";
-
-void show_help(char *help_msg) {
-    printf("%s", help_msg);
-    exit(0); // exit normally
-}
-
-void is_show_help(int argc, char **argv, char *help_msg) { // output help when necessary
-    if (argc <= 1) { // with only one argument
-        show_help(help_msg);
-    }
-    for (int i = 0; i < argc; ++i) {
-        if (!strcmp(argv[i], "-h") || !strcmp(argv[i], "--help")) { // include `-h` or `--help`
-            show_help(help_msg);
-        }
-    }
-}

src/load.c

@@ -1,11 +1,17 @@
 #include <stdlib.h>
 #include <string.h>
-#include "load.h"
 #include "common.h"
 #include "logger.h"
 #include "cJSON.h"
+#include "load.h"
 
-void init_info(bootstrap_info *info) {
+void init_info(boot_info *info);
+void dump_info(boot_info *info);
+char** add_extra_opts(char **opts, char *extra_opts_str);
+void json_decode(char *json_content, boot_info *info);
+int add_field(char *field, char **target, char ***arg, char ***arg_limit);
+
+void init_info(boot_info *info) {
     info->is_udp_proxy = 1; // enabled udp proxy
     info->server_addr = info->client_addr = NULL;
     info->server_port = info->client_port = NULL;
@@ -22,7 +28,7 @@ void init_info(bootstrap_info *info) {
     info->shadowsocks_opts[1] = NULL;
 }
 
-void dump_info(bootstrap_info *info) {
+void dump_info(boot_info *info) {
     if (info->is_udp_proxy) {
         log_debug("is_udp_proxy = true");
     } else {
@@ -51,30 +57,7 @@ void dump_info(bootstrap_info *info) {
     }
 }
 
-char** string_list_append(char **string_list, char *data) {
-    int num = 0;
-    while(string_list[num++] != NULL); // get string list size
-    string_list = (char**)realloc(string_list, sizeof(char**) * (num + 1));
-    string_list[num - 1] = new_string(data);
-    string_list[num] = NULL; // list end sign
-    return string_list;
-}
-
-int load_field(char *field, char **target, char ***arg, char ***arg_limit) {
-    if (strcmp(**arg, field)) { // field not match
-        return 0;
-    }
-    if (++(*arg) == *arg_limit) { // without next argument
-        log_fatal("`%s` require a parameter", field);
-    }
-    if (*target != NULL) {
-        free(*target); // override target field
-    }
-    *target = new_string(**arg);
-    return 1;
-}
-
-char** add_extra_options(char **opts, char *extra_opts_str) { // split shadowsocks extra options
+char** add_extra_opts(char **opts, char *extra_opts_str) { // split shadowsocks extra options
     log_debug("Split extra options -> `%s`", extra_opts_str);
     char *tmp = (char*)calloc(strlen(extra_opts_str) + 1, 1); // new memory and set as 0x00
     for (int i = 0, num = 0;; ++num) {
@@ -97,7 +80,7 @@ char** add_extra_options(char **opts, char *extra_opts_str) { // split shadowsoc
     return opts;
 }
 
-void json_decode(char *json_content, bootstrap_info *info) { // decode JSON content
+void json_decode(char *json_content, boot_info *info) { // decode JSON content
     cJSON* json = cJSON_Parse(json_content);
     if (json == NULL) {
         log_fatal("JSON format error");
@@ -211,26 +194,36 @@ void json_decode(char *json_content, bootstrap_info *info) { // decode JSON cont
             if (!cJSON_IsString(json)) {
                 log_fatal("`extra_opts` must be string");
             }
-            info->shadowsocks_opts = add_extra_options(info->shadowsocks_opts, json->valuestring);
+            info->shadowsocks_opts = add_extra_opts(info->shadowsocks_opts, json->valuestring);
         } else { // unknown field => ERROR
-
             log_fatal("Unknown JSON field `%s`", json->string);
-
         }
         json = json->next; // next field
     }
     cJSON_free(json); // free JSON struct
 }
 
+int add_field(char *field, char **target, char ***arg, char ***arg_limit) {
+    if (strcmp(**arg, field)) { // field not match
+        return 0;
+    }
+    if (++(*arg) == *arg_limit) { // without next argument
+        log_fatal("`%s` require a parameter", field);
+    }
+    if (*target != NULL) {
+        free(*target); // override target field
+    }
+    *target = new_string(**arg);
+    return 1;
+}
 
-void load_info(int argc, char **argv) { // load info from input parameters
-    bootstrap_info *info = (bootstrap_info*)malloc(sizeof(bootstrap_info));
+boot_info* load_info(int argc, char **argv) { // load info from input parameters
+    boot_info *info = (boot_info*)malloc(sizeof(boot_info));
     log_debug("Start to load input arguments");
     // TODO: output input args
     init_info(info);
     char **arg_limit = argv + argc;
     for (char **arg = argv + 1; arg < arg_limit; ++arg) {
-//        log_debug("Get argument -> `%s`", *arg);
         if (!strcmp(*arg, "--debug")) { // skip debug flag
             continue;
         } else if (!strcmp(*arg, "--fast-open")) { // --fast-open => fastopen
@@ -245,16 +238,16 @@ void load_info(int argc, char **argv) { // load info from input parameters
             json_decode(json_content, info); // decode json content
             free(json_content);
         } else if (
-            !load_field("-s", &info->server_addr, &arg, &arg_limit) &&
-            !load_field("-p", &info->server_port, &arg, &arg_limit) &&
-            !load_field("-b", &info->client_addr, &arg, &arg_limit) &&
-            !load_field("-l", &info->client_port, &arg, &arg_limit) &&
-            !load_field("-k", &info->password, &arg, &arg_limit) &&
-            !load_field("-m", &info->method, &arg, &arg_limit) &&
-            !load_field("-t", &info->timeout, &arg, &arg_limit) &&
-            !load_field("--plugin", &info->plugin, &arg, &arg_limit) &&
-            !load_field("--plugin-opts", &info->plugin_opts, &arg, &arg_limit) &&
-            !load_field("--shadowsocks", &info->shadowsocks, &arg, &arg_limit)
+            !add_field("-s", &info->server_addr, &arg, &arg_limit) &&
+            !add_field("-p", &info->server_port, &arg, &arg_limit) &&
+            !add_field("-b", &info->client_addr, &arg, &arg_limit) &&
+            !add_field("-l", &info->client_port, &arg, &arg_limit) &&
+            !add_field("-k", &info->password, &arg, &arg_limit) &&
+            !add_field("-m", &info->method, &arg, &arg_limit) &&
+            !add_field("-t", &info->timeout, &arg, &arg_limit) &&
+            !add_field("--plugin", &info->plugin, &arg, &arg_limit) &&
+            !add_field("--plugin-opts", &info->plugin_opts, &arg, &arg_limit) &&
+            !add_field("--shadowsocks", &info->shadowsocks, &arg, &arg_limit)
         ) { // archive unknown options
             log_info("Extra field -> %s", *arg);
             info->shadowsocks_opts = string_list_append(info->shadowsocks_opts, *arg);
@@ -264,4 +257,5 @@ void load_info(int argc, char **argv) { // load info from input parameters
         info->server_addr = "127.0.0.1";
     }
     dump_info(info);
+    return info;
 }

src/local.c

@@ -1,20 +1,38 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+#include "load.h"
+#include "logger.h"
 #include "common.h"
 #include "process.h"
-#include "help.h"
-#include "logger.h"
-#include "load.h"
+
+char *help_msg = "\n\
+ss-bootstrap-local\n\
+\n\
+    A simple program to make the original shadowsocks support SIP003 plugins.\n\
+\n\
+    -s <server_host>           Host name or IP address of your remote server.\n\
+    -p <server_port>           Port number of your remote server.\n\
+    -b <local_address>         Local address to bind.\n\
+    -l <local_port>            Port number of your local server.\n\
+\n\
+    -c <config_file>           Path to JSON config file.\n\
+    -k <password>              Password of your remote server.\n\
+    -m <method>                Encrypt method.\n\
+    -t <timeout>               Socket timeout in seconds.\n\
+    --fast-open                Enable TCP fast open (with Linux kernel 3.7+).\n\
+    --plugin <name>            Enable SIP003 plugin.\n\
+    --plugin-opts <options>    Set SIP003 plugin options.\n\
+    --shadowsocks <sslocal>    Set shadowsocks local program.\n\
+    --no-udp                   Do not use UDP proxy.\n\
+    -h, --help                 Print this message.\n\
+\n\
+";
 
 int main(int argc, char *argv[]) {
-    is_show_help(argc, argv, local_help_msg);
+    init(argc, argv, help_msg);
     log_info("Shadowsocks bootstrap local (%s)", VERSION);
+    boot_info *info = load_info(argc, argv);
 
-    // set log level
-//    bootstrap_info info;
-    load_info(argc, argv);
 //    params_load("sslocal"); // default file name
 //    start_bootstrap("sslocal", is_udp_proxy); // local or server mode
+
     return 0;
 }

src/server.c

@@ -1,17 +1,36 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+#include "load.h"
+#include "logger.h"
 #include "common.h"
 #include "process.h"
-#include "help.h"
-#include "logger.h"
+
+char *help_msg = "\n\
+ss-bootstrap-server\n\
+\n\
+    A simple program to make the original shadowsocks support SIP003 plugins.\n\
+\n\
+    -s <server_host>           Host name or IP address of your remote server.\n\
+    -p <server_port>           Port number of your remote server.\n\
+    -b <local_address>         Local address to bind.\n\
+    -l <local_port>            Port number of your local server.\n\
+\n\
+    -c <config_file>           Path to JSON config file.\n\
+    -k <password>              Password of your remote server.\n\
+    -m <method>                Encrypt method.\n\
+    -t <timeout>               Socket timeout in seconds.\n\
+    --fast-open                Enable TCP fast open (with Linux kernel 3.7+).\n\
+    --plugin <name>            Enable SIP003 plugin.\n\
+    --plugin-opts <options>    Set SIP003 plugin options.\n\
+    --shadowsocks <ssservre>   Set shadowsocks server program.\n\
+    --no-udp                   Do not use UDP proxy.\n\
+    -h, --help                 Print this message.\n\
+\n\
+";
 
 int main(int argc, char *argv[]) {
-    is_show_help(argc, argv, server_help_msg);
+    init(argc, argv, help_msg);
     log_info("Shadowsocks bootstrap server (%s)", VERSION);
+    boot_info *info = load_info(argc, argv);
 
-//    bootstrap_info info;
-//    args_decode(argc, argv, &info);
 //    params_load("ssserver"); // default file name
 //    start_bootstrap("ssserver", is_udp_proxy); // local or server mode
     return 0;

src/sip003.c

@@ -0,0 +1,60 @@
+#include "sip003.h"
+#include "load.h"
+
+void params_load(char *ss_default, boot_info *info) { // load shadowsocks and plugin params
+    if (info->shadowsocks == NULL) {
+        info->shadowsocks = ss_default;
+    }
+    info->shadowsocks_opts[0] = info->shadowsocks; // fill with file name
+    if (info->plugin != NULL) { // with plugin
+        char *rand_port = int_to_string(get_available_port(RANDOM_PORT_START, RANDOM_PORT_END));
+        SS_REMOTE_HOST = info->server_addr;
+        SS_REMOTE_PORT = info->server_port;
+        SS_LOCAL_HOST = "127.0.0.1";
+        SS_LOCAL_PORT = rand_port;
+        info->server_addr = SS_LOCAL_HOST;
+        info->server_port = SS_LOCAL_PORT;
+        SS_PLUGIN_OPTIONS = info->plugin_opts;
+    }
+    pack_shadowsocks_params(info);
+    shadowsocks_args = info->shadowsocks_opts;
+    if (info->plugin == NULL) {
+        plugin_file = NULL;
+    } else {
+        plugin_file = info->plugin;
+    }
+}
+
+void pack_shadowsocks_params(boot_info *info) { // packaging shadowsocks parameters
+    if (info->server_addr != NULL) {
+        info->shadowsocks_opts = string_list_append(info->shadowsocks_opts, "-s");
+        info->shadowsocks_opts = string_list_append(info->shadowsocks_opts, info->server_addr);
+    }
+    if (info->client_addr != NULL) {
+        info->shadowsocks_opts = string_list_append(info->shadowsocks_opts, "-b");
+        info->shadowsocks_opts = string_list_append(info->shadowsocks_opts, info->client_addr);
+    }
+    if (info->server_port != NULL) {
+        info->shadowsocks_opts = string_list_append(info->shadowsocks_opts, "-p");
+        info->shadowsocks_opts = string_list_append(info->shadowsocks_opts, info->server_port);
+    }
+    if (info->client_port != NULL) {
+        info->shadowsocks_opts = string_list_append(info->shadowsocks_opts, "-l");
+        info->shadowsocks_opts = string_list_append(info->shadowsocks_opts, info->client_port);
+    }
+    if (info->password != NULL) {
+        info->shadowsocks_opts = string_list_append(info->shadowsocks_opts, "-k");
+        info->shadowsocks_opts = string_list_append(info->shadowsocks_opts, info->password);
+    }
+    if (info->method != NULL) {
+        info->shadowsocks_opts = string_list_append(info->shadowsocks_opts, "-m");
+        info->shadowsocks_opts = string_list_append(info->shadowsocks_opts, info->method);
+    }
+    if (info->timeout != NULL) {
+        info->shadowsocks_opts = string_list_append(info->shadowsocks_opts, "-t");
+        info->shadowsocks_opts = string_list_append(info->shadowsocks_opts, info->timeout);
+    }
+    if (info->fastopen) {
+        info->shadowsocks_opts = string_list_append(info->shadowsocks_opts, "--fast-open");
+    }
+}

src/utils/CMakeLists.txt

@@ -0,0 +1,2 @@
+aux_source_directory(. utils_src)
+add_library(utils ${utils_src})

src/logger.c → src/utils/logger.c

@@ -1,7 +1,7 @@
 #include <stdlib.h>
 #include "logger.h"
 
-int log_level = LOG_DEBUG; // default log level
+int LOG_LEVEL = LOG_INFO; // default log level
 
 static const char *log_string[] = {
     "[DEBUG]",
@@ -20,7 +20,7 @@ static const char *log_color[] = {
 };
 
 void log_printf(int level, const char *fmt, ...) {
-    if (level < log_level) { // skip low log level
+    if (level < LOG_LEVEL) { // skip low log level
         return;
     }
     time_t t = time(NULL);

src/process.c → src/utils/process.c

@@ -1,7 +1,3 @@
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-//#include <glib.h>
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
@@ -237,6 +233,5 @@ void start_bootstrap(char *ss_type, int is_udp_proxy) { // start shadowsocks and
         printf("!!! get signal !!!\n");
     }
 
-//    g_main_loop_run(main_loop); // into main loop for wait
     exit_with_child();
 }