| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <ctype.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <inttypes.h> |
| #include <stdarg.h> |
| #include <stddef.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include "init.h" |
| #include "parser.h" |
| #include "init_parser.h" |
| #include "log.h" |
| #include "property_service.h" |
| #include "util.h" |
| |
| #include <cutils/iosched_policy.h> |
| #include <cutils/list.h> |
| |
| static list_declare(service_list); |
| static list_declare(action_list); |
| static list_declare(action_queue); |
| |
| struct import { |
| struct listnode list; |
| const char *filename; |
| }; |
| |
| static void *parse_service(struct parse_state *state, int nargs, char **args); |
| static void parse_line_service(struct parse_state *state, int nargs, char **args); |
| |
| static void *parse_action(struct parse_state *state, int nargs, char **args); |
| static void parse_line_action(struct parse_state *state, int nargs, char **args); |
| |
| #define SECTION 0x01 |
| #define COMMAND 0x02 |
| #define OPTION 0x04 |
| |
| #include "keywords.h" |
| |
| #define KEYWORD(symbol, flags, nargs, func) \ |
| [ K_##symbol ] = { #symbol, func, nargs + 1, flags, }, |
| |
| static struct { |
| const char *name; |
| int (*func)(int nargs, char **args); |
| unsigned char nargs; |
| unsigned char flags; |
| } keyword_info[KEYWORD_COUNT] = { |
| [ K_UNKNOWN ] = { "unknown", 0, 0, 0 }, |
| #include "keywords.h" |
| }; |
| #undef KEYWORD |
| |
| #define kw_is(kw, type) (keyword_info[kw].flags & (type)) |
| #define kw_name(kw) (keyword_info[kw].name) |
| #define kw_func(kw) (keyword_info[kw].func) |
| #define kw_nargs(kw) (keyword_info[kw].nargs) |
| |
| void dump_parser_state() { |
| if (false) { |
| struct listnode* node; |
| list_for_each(node, &service_list) { |
| service* svc = node_to_item(node, struct service, slist); |
| INFO("service %s\n", svc->name); |
| INFO(" class '%s'\n", svc->classname); |
| INFO(" exec"); |
| for (int n = 0; n < svc->nargs; n++) { |
| INFO(" '%s'", svc->args[n]); |
| } |
| INFO("\n"); |
| for (socketinfo* si = svc->sockets; si; si = si->next) { |
| INFO(" socket %s %s 0%o\n", si->name, si->type, si->perm); |
| } |
| } |
| |
| list_for_each(node, &action_list) { |
| action* act = node_to_item(node, struct action, alist); |
| INFO("on "); |
| char name_str[256] = ""; |
| build_triggers_string(name_str, sizeof(name_str), act); |
| INFO("%s", name_str); |
| INFO("\n"); |
| |
| struct listnode* node2; |
| list_for_each(node2, &act->commands) { |
| command* cmd = node_to_item(node2, struct command, clist); |
| INFO(" %p", cmd->func); |
| for (int n = 0; n < cmd->nargs; n++) { |
| INFO(" %s", cmd->args[n]); |
| } |
| INFO("\n"); |
| } |
| INFO("\n"); |
| } |
| } |
| } |
| |
| static int lookup_keyword(const char *s) |
| { |
| switch (*s++) { |
| case 'b': |
| if (!strcmp(s, "ootchart_init")) return K_bootchart_init; |
| break; |
| case 'c': |
| if (!strcmp(s, "opy")) return K_copy; |
| if (!strcmp(s, "lass")) return K_class; |
| if (!strcmp(s, "lass_start")) return K_class_start; |
| if (!strcmp(s, "lass_stop")) return K_class_stop; |
| if (!strcmp(s, "lass_reset")) return K_class_reset; |
| if (!strcmp(s, "onsole")) return K_console; |
| if (!strcmp(s, "hown")) return K_chown; |
| if (!strcmp(s, "hmod")) return K_chmod; |
| if (!strcmp(s, "ritical")) return K_critical; |
| break; |
| case 'd': |
| if (!strcmp(s, "isabled")) return K_disabled; |
| if (!strcmp(s, "omainname")) return K_domainname; |
| break; |
| case 'e': |
| if (!strcmp(s, "nable")) return K_enable; |
| if (!strcmp(s, "xec")) return K_exec; |
| if (!strcmp(s, "xport")) return K_export; |
| break; |
| case 'g': |
| if (!strcmp(s, "roup")) return K_group; |
| break; |
| case 'h': |
| if (!strcmp(s, "ostname")) return K_hostname; |
| break; |
| case 'i': |
| if (!strcmp(s, "oprio")) return K_ioprio; |
| if (!strcmp(s, "fup")) return K_ifup; |
| if (!strcmp(s, "nsmod")) return K_insmod; |
| if (!strcmp(s, "mport")) return K_import; |
| if (!strcmp(s, "nstallkey")) return K_installkey; |
| break; |
| case 'k': |
| if (!strcmp(s, "eycodes")) return K_keycodes; |
| break; |
| case 'l': |
| if (!strcmp(s, "oglevel")) return K_loglevel; |
| if (!strcmp(s, "oad_persist_props")) return K_load_persist_props; |
| if (!strcmp(s, "oad_system_props")) return K_load_system_props; |
| break; |
| case 'm': |
| if (!strcmp(s, "kdir")) return K_mkdir; |
| if (!strcmp(s, "ount_all")) return K_mount_all; |
| if (!strcmp(s, "ount")) return K_mount; |
| break; |
| case 'o': |
| if (!strcmp(s, "n")) return K_on; |
| if (!strcmp(s, "neshot")) return K_oneshot; |
| if (!strcmp(s, "nrestart")) return K_onrestart; |
| break; |
| case 'p': |
| if (!strcmp(s, "owerctl")) return K_powerctl; |
| break; |
| case 'r': |
| if (!strcmp(s, "estart")) return K_restart; |
| if (!strcmp(s, "estorecon")) return K_restorecon; |
| if (!strcmp(s, "estorecon_recursive")) return K_restorecon_recursive; |
| if (!strcmp(s, "mdir")) return K_rmdir; |
| if (!strcmp(s, "m")) return K_rm; |
| break; |
| case 's': |
| if (!strcmp(s, "eclabel")) return K_seclabel; |
| if (!strcmp(s, "ervice")) return K_service; |
| if (!strcmp(s, "etenv")) return K_setenv; |
| if (!strcmp(s, "etprop")) return K_setprop; |
| if (!strcmp(s, "etrlimit")) return K_setrlimit; |
| if (!strcmp(s, "etusercryptopolicies")) return K_setusercryptopolicies; |
| if (!strcmp(s, "ocket")) return K_socket; |
| if (!strcmp(s, "tart")) return K_start; |
| if (!strcmp(s, "top")) return K_stop; |
| if (!strcmp(s, "wapon_all")) return K_swapon_all; |
| if (!strcmp(s, "ymlink")) return K_symlink; |
| if (!strcmp(s, "ysclktz")) return K_sysclktz; |
| break; |
| case 't': |
| if (!strcmp(s, "rigger")) return K_trigger; |
| break; |
| case 'u': |
| if (!strcmp(s, "ser")) return K_user; |
| break; |
| case 'v': |
| if (!strcmp(s, "erity_load_state")) return K_verity_load_state; |
| if (!strcmp(s, "erity_update_state")) return K_verity_update_state; |
| break; |
| case 'w': |
| if (!strcmp(s, "rite")) return K_write; |
| if (!strcmp(s, "ritepid")) return K_writepid; |
| if (!strcmp(s, "ait")) return K_wait; |
| break; |
| } |
| return K_UNKNOWN; |
| } |
| |
| static void parse_line_no_op(struct parse_state*, int, char**) { |
| } |
| |
| static int push_chars(char **dst, int *len, const char *chars, int cnt) |
| { |
| if (cnt > *len) |
| return -1; |
| |
| memcpy(*dst, chars, cnt); |
| *dst += cnt; |
| *len -= cnt; |
| |
| return 0; |
| } |
| |
| int expand_props(char *dst, const char *src, int dst_size) |
| { |
| char *dst_ptr = dst; |
| const char *src_ptr = src; |
| int ret = 0; |
| int left = dst_size - 1; |
| |
| if (!src || !dst || dst_size == 0) |
| return -1; |
| |
| /* - variables can either be $x.y or ${x.y}, in case they are only part |
| * of the string. |
| * - will accept $$ as a literal $. |
| * - no nested property expansion, i.e. ${foo.${bar}} is not supported, |
| * bad things will happen |
| */ |
| while (*src_ptr && left > 0) { |
| char *c; |
| char prop[PROP_NAME_MAX + 1]; |
| char prop_val[PROP_VALUE_MAX]; |
| int prop_len = 0; |
| int prop_val_len; |
| |
| c = strchr(src_ptr, '$'); |
| if (!c) { |
| while (left-- > 0 && *src_ptr) |
| *(dst_ptr++) = *(src_ptr++); |
| break; |
| } |
| |
| memset(prop, 0, sizeof(prop)); |
| |
| ret = push_chars(&dst_ptr, &left, src_ptr, c - src_ptr); |
| if (ret < 0) |
| goto err_nospace; |
| c++; |
| |
| if (*c == '$') { |
| *(dst_ptr++) = *(c++); |
| src_ptr = c; |
| left--; |
| continue; |
| } else if (*c == '\0') { |
| break; |
| } |
| |
| if (*c == '{') { |
| c++; |
| while (*c && *c != '}' && prop_len < PROP_NAME_MAX) |
| prop[prop_len++] = *(c++); |
| if (*c != '}') { |
| /* failed to find closing brace, abort. */ |
| if (prop_len == PROP_NAME_MAX) |
| ERROR("prop name too long during expansion of '%s'\n", |
| src); |
| else if (*c == '\0') |
| ERROR("unexpected end of string in '%s', looking for }\n", |
| src); |
| goto err; |
| } |
| prop[prop_len] = '\0'; |
| c++; |
| } else if (*c) { |
| while (*c && prop_len < PROP_NAME_MAX) |
| prop[prop_len++] = *(c++); |
| if (prop_len == PROP_NAME_MAX && *c != '\0') { |
| ERROR("prop name too long in '%s'\n", src); |
| goto err; |
| } |
| prop[prop_len] = '\0'; |
| ERROR("using deprecated syntax for specifying property '%s', use ${name} instead\n", |
| prop); |
| } |
| |
| if (prop_len == 0) { |
| ERROR("invalid zero-length prop name in '%s'\n", src); |
| goto err; |
| } |
| |
| prop_val_len = property_get(prop, prop_val); |
| if (!prop_val_len) { |
| ERROR("property '%s' doesn't exist while expanding '%s'\n", |
| prop, src); |
| goto err; |
| } |
| |
| ret = push_chars(&dst_ptr, &left, prop_val, prop_val_len); |
| if (ret < 0) |
| goto err_nospace; |
| src_ptr = c; |
| continue; |
| } |
| |
| *dst_ptr = '\0'; |
| return 0; |
| |
| err_nospace: |
| ERROR("destination buffer overflow while expanding '%s'\n", src); |
| err: |
| return -1; |
| } |
| |
| static void parse_import(struct parse_state *state, int nargs, char **args) |
| { |
| struct listnode *import_list = (listnode*) state->priv; |
| char conf_file[PATH_MAX]; |
| int ret; |
| |
| if (nargs != 2) { |
| ERROR("single argument needed for import\n"); |
| return; |
| } |
| |
| ret = expand_props(conf_file, args[1], sizeof(conf_file)); |
| if (ret) { |
| ERROR("error while handling import on line '%d' in '%s'\n", |
| state->line, state->filename); |
| return; |
| } |
| |
| struct import* import = (struct import*) calloc(1, sizeof(struct import)); |
| import->filename = strdup(conf_file); |
| list_add_tail(import_list, &import->list); |
| INFO("Added '%s' to import list\n", import->filename); |
| } |
| |
| static void parse_new_section(struct parse_state *state, int kw, |
| int nargs, char **args) |
| { |
| printf("[ %s %s ]\n", args[0], |
| nargs > 1 ? args[1] : ""); |
| switch(kw) { |
| case K_service: |
| state->context = parse_service(state, nargs, args); |
| if (state->context) { |
| state->parse_line = parse_line_service; |
| return; |
| } |
| break; |
| case K_on: |
| state->context = parse_action(state, nargs, args); |
| if (state->context) { |
| state->parse_line = parse_line_action; |
| return; |
| } |
| break; |
| case K_import: |
| parse_import(state, nargs, args); |
| break; |
| } |
| state->parse_line = parse_line_no_op; |
| } |
| |
| static void parse_config(const char *fn, const std::string& data) |
| { |
| struct listnode import_list; |
| struct listnode *node; |
| char *args[INIT_PARSER_MAXARGS]; |
| |
| int nargs = 0; |
| |
| parse_state state; |
| state.filename = fn; |
| state.line = 0; |
| state.ptr = strdup(data.c_str()); // TODO: fix this code! |
| state.nexttoken = 0; |
| state.parse_line = parse_line_no_op; |
| |
| list_init(&import_list); |
| state.priv = &import_list; |
| |
| for (;;) { |
| switch (next_token(&state)) { |
| case T_EOF: |
| state.parse_line(&state, 0, 0); |
| goto parser_done; |
| case T_NEWLINE: |
| state.line++; |
| if (nargs) { |
| int kw = lookup_keyword(args[0]); |
| if (kw_is(kw, SECTION)) { |
| state.parse_line(&state, 0, 0); |
| parse_new_section(&state, kw, nargs, args); |
| } else { |
| state.parse_line(&state, nargs, args); |
| } |
| nargs = 0; |
| } |
| break; |
| case T_TEXT: |
| if (nargs < INIT_PARSER_MAXARGS) { |
| args[nargs++] = state.text; |
| } |
| break; |
| } |
| } |
| |
| parser_done: |
| list_for_each(node, &import_list) { |
| struct import *import = node_to_item(node, struct import, list); |
| int ret; |
| |
| ret = init_parse_config_file(import->filename); |
| if (ret) |
| ERROR("could not import file '%s' from '%s'\n", |
| import->filename, fn); |
| } |
| } |
| |
| int init_parse_config_file(const char* path) { |
| INFO("Parsing %s...\n", path); |
| Timer t; |
| std::string data; |
| if (!read_file(path, &data)) { |
| return -1; |
| } |
| |
| data.push_back('\n'); // TODO: fix parse_config. |
| parse_config(path, data); |
| dump_parser_state(); |
| |
| NOTICE("(Parsing %s took %.2fs.)\n", path, t.duration()); |
| return 0; |
| } |
| |
| static int valid_name(const char *name) |
| { |
| if (strlen(name) > 16) { |
| return 0; |
| } |
| while (*name) { |
| if (!isalnum(*name) && (*name != '_') && (*name != '-')) { |
| return 0; |
| } |
| name++; |
| } |
| return 1; |
| } |
| |
| struct service *service_find_by_name(const char *name) |
| { |
| struct listnode *node; |
| struct service *svc; |
| list_for_each(node, &service_list) { |
| svc = node_to_item(node, struct service, slist); |
| if (!strcmp(svc->name, name)) { |
| return svc; |
| } |
| } |
| return 0; |
| } |
| |
| struct service *service_find_by_pid(pid_t pid) |
| { |
| struct listnode *node; |
| struct service *svc; |
| list_for_each(node, &service_list) { |
| svc = node_to_item(node, struct service, slist); |
| if (svc->pid == pid) { |
| return svc; |
| } |
| } |
| return 0; |
| } |
| |
| struct service *service_find_by_keychord(int keychord_id) |
| { |
| struct listnode *node; |
| struct service *svc; |
| list_for_each(node, &service_list) { |
| svc = node_to_item(node, struct service, slist); |
| if (svc->keychord_id == keychord_id) { |
| return svc; |
| } |
| } |
| return 0; |
| } |
| |
| void service_for_each(void (*func)(struct service *svc)) |
| { |
| struct listnode *node; |
| struct service *svc; |
| list_for_each(node, &service_list) { |
| svc = node_to_item(node, struct service, slist); |
| func(svc); |
| } |
| } |
| |
| void service_for_each_class(const char *classname, |
| void (*func)(struct service *svc)) |
| { |
| struct listnode *node; |
| struct service *svc; |
| list_for_each(node, &service_list) { |
| svc = node_to_item(node, struct service, slist); |
| if (!strcmp(svc->classname, classname)) { |
| func(svc); |
| } |
| } |
| } |
| |
| void service_for_each_flags(unsigned matchflags, |
| void (*func)(struct service *svc)) |
| { |
| struct listnode *node; |
| struct service *svc; |
| list_for_each(node, &service_list) { |
| svc = node_to_item(node, struct service, slist); |
| if (svc->flags & matchflags) { |
| func(svc); |
| } |
| } |
| } |
| |
| void action_for_each_trigger(const char *trigger, |
| void (*func)(struct action *act)) |
| { |
| struct listnode *node, *node2; |
| struct action *act; |
| struct trigger *cur_trigger; |
| |
| list_for_each(node, &action_list) { |
| act = node_to_item(node, struct action, alist); |
| list_for_each(node2, &act->triggers) { |
| cur_trigger = node_to_item(node2, struct trigger, nlist); |
| if (!strcmp(cur_trigger->name, trigger)) { |
| func(act); |
| } |
| } |
| } |
| } |
| |
| |
| void queue_property_triggers(const char *name, const char *value) |
| { |
| struct listnode *node, *node2; |
| struct action *act; |
| struct trigger *cur_trigger; |
| bool match; |
| int name_length; |
| |
| list_for_each(node, &action_list) { |
| act = node_to_item(node, struct action, alist); |
| match = !name; |
| list_for_each(node2, &act->triggers) { |
| cur_trigger = node_to_item(node2, struct trigger, nlist); |
| if (!strncmp(cur_trigger->name, "property:", strlen("property:"))) { |
| const char *test = cur_trigger->name + strlen("property:"); |
| if (!match) { |
| name_length = strlen(name); |
| if (!strncmp(name, test, name_length) && |
| test[name_length] == '=' && |
| (!strcmp(test + name_length + 1, value) || |
| !strcmp(test + name_length + 1, "*"))) { |
| match = true; |
| continue; |
| } |
| } |
| const char* equals = strchr(test, '='); |
| if (equals) { |
| char prop_name[PROP_NAME_MAX + 1]; |
| char value[PROP_VALUE_MAX]; |
| int length = equals - test; |
| if (length <= PROP_NAME_MAX) { |
| int ret; |
| memcpy(prop_name, test, length); |
| prop_name[length] = 0; |
| |
| /* does the property exist, and match the trigger value? */ |
| ret = property_get(prop_name, value); |
| if (ret > 0 && (!strcmp(equals + 1, value) || |
| !strcmp(equals + 1, "*"))) { |
| continue; |
| } |
| } |
| } |
| } |
| match = false; |
| break; |
| } |
| if (match) { |
| action_add_queue_tail(act); |
| } |
| } |
| } |
| |
| void queue_all_property_triggers() |
| { |
| queue_property_triggers(NULL, NULL); |
| } |
| |
| void queue_builtin_action(int (*func)(int nargs, char **args), const char *name) |
| { |
| action* act = (action*) calloc(1, sizeof(*act)); |
| trigger* cur_trigger = (trigger*) calloc(1, sizeof(*cur_trigger)); |
| cur_trigger->name = name; |
| list_init(&act->triggers); |
| list_add_tail(&act->triggers, &cur_trigger->nlist); |
| list_init(&act->commands); |
| list_init(&act->qlist); |
| |
| command* cmd = (command*) calloc(1, sizeof(*cmd)); |
| cmd->func = func; |
| cmd->args[0] = const_cast<char*>(name); |
| cmd->nargs = 1; |
| list_add_tail(&act->commands, &cmd->clist); |
| |
| list_add_tail(&action_list, &act->alist); |
| action_add_queue_tail(act); |
| } |
| |
| void action_add_queue_tail(struct action *act) |
| { |
| if (list_empty(&act->qlist)) { |
| list_add_tail(&action_queue, &act->qlist); |
| } |
| } |
| |
| struct action *action_remove_queue_head(void) |
| { |
| if (list_empty(&action_queue)) { |
| return 0; |
| } else { |
| struct listnode *node = list_head(&action_queue); |
| struct action *act = node_to_item(node, struct action, qlist); |
| list_remove(node); |
| list_init(node); |
| return act; |
| } |
| } |
| |
| int action_queue_empty() |
| { |
| return list_empty(&action_queue); |
| } |
| |
| service* make_exec_oneshot_service(int nargs, char** args) { |
| // Parse the arguments: exec [SECLABEL [UID [GID]*] --] COMMAND ARGS... |
| // SECLABEL can be a - to denote default |
| int command_arg = 1; |
| for (int i = 1; i < nargs; ++i) { |
| if (strcmp(args[i], "--") == 0) { |
| command_arg = i + 1; |
| break; |
| } |
| } |
| if (command_arg > 4 + NR_SVC_SUPP_GIDS) { |
| ERROR("exec called with too many supplementary group ids\n"); |
| return NULL; |
| } |
| |
| int argc = nargs - command_arg; |
| char** argv = (args + command_arg); |
| if (argc < 1) { |
| ERROR("exec called without command\n"); |
| return NULL; |
| } |
| |
| service* svc = (service*) calloc(1, sizeof(*svc) + sizeof(char*) * argc); |
| if (svc == NULL) { |
| ERROR("Couldn't allocate service for exec of '%s': %s", argv[0], strerror(errno)); |
| return NULL; |
| } |
| |
| if ((command_arg > 2) && strcmp(args[1], "-")) { |
| svc->seclabel = args[1]; |
| } |
| if (command_arg > 3) { |
| svc->uid = decode_uid(args[2]); |
| } |
| if (command_arg > 4) { |
| svc->gid = decode_uid(args[3]); |
| svc->nr_supp_gids = command_arg - 1 /* -- */ - 4 /* exec SECLABEL UID GID */; |
| for (size_t i = 0; i < svc->nr_supp_gids; ++i) { |
| svc->supp_gids[i] = decode_uid(args[4 + i]); |
| } |
| } |
| |
| static int exec_count; // Every service needs a unique name. |
| char* name = NULL; |
| asprintf(&name, "exec %d (%s)", exec_count++, argv[0]); |
| if (name == NULL) { |
| ERROR("Couldn't allocate name for exec service '%s'\n", argv[0]); |
| free(svc); |
| return NULL; |
| } |
| svc->name = name; |
| svc->classname = "default"; |
| svc->flags = SVC_EXEC | SVC_ONESHOT; |
| svc->nargs = argc; |
| memcpy(svc->args, argv, sizeof(char*) * svc->nargs); |
| svc->args[argc] = NULL; |
| list_add_tail(&service_list, &svc->slist); |
| return svc; |
| } |
| |
| static void *parse_service(struct parse_state *state, int nargs, char **args) |
| { |
| if (nargs < 3) { |
| parse_error(state, "services must have a name and a program\n"); |
| return 0; |
| } |
| if (!valid_name(args[1])) { |
| parse_error(state, "invalid service name '%s'\n", args[1]); |
| return 0; |
| } |
| |
| service* svc = (service*) service_find_by_name(args[1]); |
| if (svc) { |
| parse_error(state, "ignored duplicate definition of service '%s'\n", args[1]); |
| return 0; |
| } |
| |
| nargs -= 2; |
| svc = (service*) calloc(1, sizeof(*svc) + sizeof(char*) * nargs); |
| if (!svc) { |
| parse_error(state, "out of memory\n"); |
| return 0; |
| } |
| svc->name = strdup(args[1]); |
| svc->classname = "default"; |
| memcpy(svc->args, args + 2, sizeof(char*) * nargs); |
| trigger* cur_trigger = (trigger*) calloc(1, sizeof(*cur_trigger)); |
| svc->args[nargs] = 0; |
| svc->nargs = nargs; |
| list_init(&svc->onrestart.triggers); |
| cur_trigger->name = "onrestart"; |
| list_add_tail(&svc->onrestart.triggers, &cur_trigger->nlist); |
| list_init(&svc->onrestart.commands); |
| list_add_tail(&service_list, &svc->slist); |
| return svc; |
| } |
| |
| static void parse_line_service(struct parse_state *state, int nargs, char **args) |
| { |
| struct service *svc = (service*) state->context; |
| struct command *cmd; |
| int i, kw, kw_nargs; |
| |
| if (nargs == 0) { |
| return; |
| } |
| |
| svc->ioprio_class = IoSchedClass_NONE; |
| |
| kw = lookup_keyword(args[0]); |
| switch (kw) { |
| case K_class: |
| if (nargs != 2) { |
| parse_error(state, "class option requires a classname\n"); |
| } else { |
| svc->classname = args[1]; |
| } |
| break; |
| case K_console: |
| svc->flags |= SVC_CONSOLE; |
| break; |
| case K_disabled: |
| svc->flags |= SVC_DISABLED; |
| svc->flags |= SVC_RC_DISABLED; |
| break; |
| case K_ioprio: |
| if (nargs != 3) { |
| parse_error(state, "ioprio optin usage: ioprio <rt|be|idle> <ioprio 0-7>\n"); |
| } else { |
| svc->ioprio_pri = strtoul(args[2], 0, 8); |
| |
| if (svc->ioprio_pri < 0 || svc->ioprio_pri > 7) { |
| parse_error(state, "priority value must be range 0 - 7\n"); |
| break; |
| } |
| |
| if (!strcmp(args[1], "rt")) { |
| svc->ioprio_class = IoSchedClass_RT; |
| } else if (!strcmp(args[1], "be")) { |
| svc->ioprio_class = IoSchedClass_BE; |
| } else if (!strcmp(args[1], "idle")) { |
| svc->ioprio_class = IoSchedClass_IDLE; |
| } else { |
| parse_error(state, "ioprio option usage: ioprio <rt|be|idle> <0-7>\n"); |
| } |
| } |
| break; |
| case K_group: |
| if (nargs < 2) { |
| parse_error(state, "group option requires a group id\n"); |
| } else if (nargs > NR_SVC_SUPP_GIDS + 2) { |
| parse_error(state, "group option accepts at most %d supp. groups\n", |
| NR_SVC_SUPP_GIDS); |
| } else { |
| int n; |
| svc->gid = decode_uid(args[1]); |
| for (n = 2; n < nargs; n++) { |
| svc->supp_gids[n-2] = decode_uid(args[n]); |
| } |
| svc->nr_supp_gids = n - 2; |
| } |
| break; |
| case K_keycodes: |
| if (nargs < 2) { |
| parse_error(state, "keycodes option requires atleast one keycode\n"); |
| } else { |
| svc->keycodes = (int*) malloc((nargs - 1) * sizeof(svc->keycodes[0])); |
| if (!svc->keycodes) { |
| parse_error(state, "could not allocate keycodes\n"); |
| } else { |
| svc->nkeycodes = nargs - 1; |
| for (i = 1; i < nargs; i++) { |
| svc->keycodes[i - 1] = atoi(args[i]); |
| } |
| } |
| } |
| break; |
| case K_oneshot: |
| svc->flags |= SVC_ONESHOT; |
| break; |
| case K_onrestart: |
| nargs--; |
| args++; |
| kw = lookup_keyword(args[0]); |
| if (!kw_is(kw, COMMAND)) { |
| parse_error(state, "invalid command '%s'\n", args[0]); |
| break; |
| } |
| kw_nargs = kw_nargs(kw); |
| if (nargs < kw_nargs) { |
| parse_error(state, "%s requires %d %s\n", args[0], kw_nargs - 1, |
| kw_nargs > 2 ? "arguments" : "argument"); |
| break; |
| } |
| |
| cmd = (command*) malloc(sizeof(*cmd) + sizeof(char*) * nargs); |
| cmd->func = kw_func(kw); |
| cmd->nargs = nargs; |
| memcpy(cmd->args, args, sizeof(char*) * nargs); |
| list_add_tail(&svc->onrestart.commands, &cmd->clist); |
| break; |
| case K_critical: |
| svc->flags |= SVC_CRITICAL; |
| break; |
| case K_setenv: { /* name value */ |
| if (nargs < 3) { |
| parse_error(state, "setenv option requires name and value arguments\n"); |
| break; |
| } |
| svcenvinfo* ei = (svcenvinfo*) calloc(1, sizeof(*ei)); |
| if (!ei) { |
| parse_error(state, "out of memory\n"); |
| break; |
| } |
| ei->name = args[1]; |
| ei->value = args[2]; |
| ei->next = svc->envvars; |
| svc->envvars = ei; |
| break; |
| } |
| case K_socket: {/* name type perm [ uid gid context ] */ |
| if (nargs < 4) { |
| parse_error(state, "socket option requires name, type, perm arguments\n"); |
| break; |
| } |
| if (strcmp(args[2],"dgram") && strcmp(args[2],"stream") |
| && strcmp(args[2],"seqpacket")) { |
| parse_error(state, "socket type must be 'dgram', 'stream' or 'seqpacket'\n"); |
| break; |
| } |
| socketinfo* si = (socketinfo*) calloc(1, sizeof(*si)); |
| if (!si) { |
| parse_error(state, "out of memory\n"); |
| break; |
| } |
| si->name = args[1]; |
| si->type = args[2]; |
| si->perm = strtoul(args[3], 0, 8); |
| if (nargs > 4) |
| si->uid = decode_uid(args[4]); |
| if (nargs > 5) |
| si->gid = decode_uid(args[5]); |
| if (nargs > 6) |
| si->socketcon = args[6]; |
| si->next = svc->sockets; |
| svc->sockets = si; |
| break; |
| } |
| case K_user: |
| if (nargs != 2) { |
| parse_error(state, "user option requires a user id\n"); |
| } else { |
| svc->uid = decode_uid(args[1]); |
| } |
| break; |
| case K_seclabel: |
| if (nargs != 2) { |
| parse_error(state, "seclabel option requires a label string\n"); |
| } else { |
| svc->seclabel = args[1]; |
| } |
| break; |
| case K_writepid: |
| if (nargs < 2) { |
| parse_error(state, "writepid option requires at least one filename\n"); |
| break; |
| } |
| svc->writepid_files_ = new std::vector<std::string>; |
| for (int i = 1; i < nargs; ++i) { |
| svc->writepid_files_->push_back(args[i]); |
| } |
| break; |
| |
| default: |
| parse_error(state, "invalid option '%s'\n", args[0]); |
| } |
| } |
| |
| static void *parse_action(struct parse_state *state, int nargs, char **args) |
| { |
| struct trigger *cur_trigger; |
| int i; |
| if (nargs < 2) { |
| parse_error(state, "actions must have a trigger\n"); |
| return 0; |
| } |
| |
| action* act = (action*) calloc(1, sizeof(*act)); |
| list_init(&act->triggers); |
| |
| for (i = 1; i < nargs; i++) { |
| if (!(i % 2)) { |
| if (strcmp(args[i], "&&")) { |
| struct listnode *node; |
| struct listnode *node2; |
| parse_error(state, "& is the only symbol allowed to concatenate actions\n"); |
| list_for_each_safe(node, node2, &act->triggers) { |
| struct trigger *trigger = node_to_item(node, struct trigger, nlist); |
| free(trigger); |
| } |
| free(act); |
| return 0; |
| } else |
| continue; |
| } |
| cur_trigger = (trigger*) calloc(1, sizeof(*cur_trigger)); |
| cur_trigger->name = args[i]; |
| list_add_tail(&act->triggers, &cur_trigger->nlist); |
| } |
| |
| list_init(&act->commands); |
| list_init(&act->qlist); |
| list_add_tail(&action_list, &act->alist); |
| /* XXX add to hash */ |
| return act; |
| } |
| |
| static void parse_line_action(struct parse_state* state, int nargs, char **args) |
| { |
| struct action *act = (action*) state->context; |
| int kw, n; |
| |
| if (nargs == 0) { |
| return; |
| } |
| |
| kw = lookup_keyword(args[0]); |
| if (!kw_is(kw, COMMAND)) { |
| parse_error(state, "invalid command '%s'\n", args[0]); |
| return; |
| } |
| |
| n = kw_nargs(kw); |
| if (nargs < n) { |
| parse_error(state, "%s requires %d %s\n", args[0], n - 1, |
| n > 2 ? "arguments" : "argument"); |
| return; |
| } |
| command* cmd = (command*) malloc(sizeof(*cmd) + sizeof(char*) * nargs); |
| cmd->func = kw_func(kw); |
| cmd->line = state->line; |
| cmd->filename = state->filename; |
| cmd->nargs = nargs; |
| memcpy(cmd->args, args, sizeof(char*) * nargs); |
| list_add_tail(&act->commands, &cmd->clist); |
| } |
