src/launchpad.c

   1 /*
   2  *  debug-launchpad
   3  *
   4  * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Contact: Jungmin Cho <chivalry.cho@samsung.com>, Gwangho Hwang <gwang.hwang@samsung.com>
   7  *
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  * http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  *
  20  */
  21
  22 /*
  23  * simple AUL daemon - launchpad
  24  */
  25
  26 #include <stdio.h>
  27 #include <string.h>
  28 #include <dlfcn.h>
  29 #include <X11/Xlib.h>
  30 #include <sys/types.h>
  31 #include <signal.h>
  32 #include <dirent.h>
  33 #include <fcntl.h>
  34 #include <stdlib.h>
  35 #include <sys/wait.h>
  36 #include <poll.h>
  37 #include <sys/prctl.h>
  38 #include <malloc.h>
  39
  40 #include "app_sock.h"
  41 #include "aul.h"
  42
  43 #include "config.h"
  44
  45 #include "menu_db_util.h"
  46 #include "simple_util.h"
  47 #include "access_control.h"
  48 #include "preload.h"
  49 #include "preexec.h"
  50 #include "perf.h"
  51 #include "sigchild.h"
  52 #include "aul_util.h"
  53
  54 #include "heap_dbg.h"
  55
  56 #include "gl.h"
  57
  58 #include <sqlite3.h>
  59 #include <sys/smack.h>
  60 #include "fileutils.h"
  61 #include <sys/capability.h>
  62
  63 #define _static_ static inline
  64 #define POLLFD_MAX 1
  65 #define SQLITE_FLUSH_MAX        (1048576)       /* (1024*1024) */
  66 #define AUL_POLL_CNT            15
  67 #define AUL_PR_NAME                     16
  68 #define APPID_LEN       10
  69 #define PATH_TMP "/tmp"
  70 #define PATH_DATA "/data"
  71
  72 #define SDK_CODE_COVERAGE "CODE_COVERAGE"
  73 #define SDK_DEBUG "DEBUG"
  74 #define SDK_DYNAMIC_ANALYSIS "DYNAMIC_ANALYSIS"
  75 #define SDK_UNIT_TEST "UNIT_TEST"
  76 #define SDK_VALGRIND "VALGRIND"
  77
  78 /* DLP is short for debug-launchpad */
  79 #define DLP_K_DEBUG_ARG "__DLP_DEBUG_ARG__"
  80 #define DLP_K_UNIT_TEST_ARG "__DLP_UNIT_TEST_ARG__"
  81 #define DLP_K_VALGRIND_ARG "__DLP_VALGRIND_ARG__"
  82
  83 #define PATH_GDBSERVER  "/home/developer/sdk_tools/gdbserver/gdbserver"
  84 #define PATH_VALGRIND   "/home/developer/sdk_tools/valgrind/usr/bin/valgrind"
  85 #define PATH_DA_SO      "/usr/lib/da_probe_osp.so"
  86 #define PATH_NATIVE_APP "/opt/apps/"
  87
  88 #define OPT_VALGRIND_LOGFILE            "--log-file="
  89 #define OPT_VALGRIND_LOGFILE_FIXED      "--log-file=/tmp/valgrind_result.txt"
  90 #define PATH_VALGRIND_LOGFILE           "/tmp/valgrind_result.txt"
  91 #define OPT_VALGRIND_XMLFILE            "--xml-file="
  92 #define OPT_VALGRIND_XMLFILE_FIXED      "--xml-file=/tmp/valgrind_result.xml"
  93 #define PATH_VALGRIND_XMLFILE           "/tmp/valgrind_result.xml"
  94
  95 #if (ARCH==arm)
  96 #define PATH_MEMCHECK   "/opt/home/developer/sdk_tools/valgrind/usr/lib/valgrind/memcheck-arm-linux"
  97 #elif (ARCH==x86)
  98 #define PATH_MEMCHECK   "/opt/home/developer/sdk_tools/valgrind/usr/lib/valgrind/memcheck-x86-linux"
  99 #endif
 100
 101 #define POLL_VALGRIND_LOGFILE           0x00000001
 102 #define POLL_VALGRIND_XMLFILE           0x00000002
 103
 104 #define CAPABILITY_SET_ORIGINAL         0
 105 #define CAPABILITY_SET_INHERITABLE      1
 106
 107 static int need_to_set_inh_cap_after_fork = 0;
 108 static char *launchpad_cmdline;
 109 static int initialized = 0;
 110
 111 static int poll_outputfile = 0;
 112
 113 void __set_oom();
 114 void __set_env(app_info_from_db * menu_info, bundle * kb);
 115 int __prepare_exec(const char *pkg_name,
 116                             const char *app_path, app_info_from_db * menu_info,
 117                             bundle * kb);
 118 int __fake_launch_app(int cmd, int pid, bundle * kb);
 119 char **__create_argc_argv(bundle * kb, int *margc, const char *app_path);
 120 int __normal_fork_exec(int argc, char **argv);
 121 void __real_launch(const char *app_path, bundle * kb);
 122 static inline int __parser(const char *arg, char *out, int out_size);
 123 void __modify_bundle(bundle * kb, int caller_pid,
 124                             app_info_from_db * menu_info, int cmd);
 125 int __send_to_sigkill(int pid);
 126 int __term_app(int pid);
 127 void __real_send(int clifd, int ret);
 128 void __send_result_to_caller(int clifd, int ret);
 129 void __launchpad_main_loop(int main_fd);
 130 int __launchpad_pre_init(int argc, char **argv);
 131 int __launchpad_post_init();
 132
 133 extern ail_error_e ail_db_close(void);
 134
 135
 136
 137 void __set_oom()
 138 {
 139         char buf[MAX_LOCAL_BUFSZ];
 140         FILE *fp;
 141
 142         /* we should reset oomadj value as default because child
 143         inherits from parent oom_adj*/
 144         snprintf(buf, MAX_LOCAL_BUFSZ, "/proc/%d/oom_adj", getpid());
 145         fp = fopen(buf, "w");
 146         if (fp == NULL)
 147                 return;
 148         fprintf(fp, "%d", -16);
 149         fclose(fp);
 150 }
 151
 152 void __set_sdk_env(app_info_from_db* menu_info, char* str) {
 153         char buf_pkgname[MAX_LOCAL_BUFSZ];
 154         char buf[MAX_LOCAL_BUFSZ];
 155         int ret;
 156
 157         _D("key : %s / value : %s", AUL_K_SDK, str);
 158         /* http://gcc.gnu.org/onlinedocs/gcc/Cross_002dprofiling.html*/
 159         /* GCOV_PREFIX contains the prefix to add to the absolute paths */
 160         /*      in the object file. Prefix can be absolute, or relative.*/
 161         /*      The default is no prefix.  */
 162         /* GCOV_PREFIX_STRIP indicates the how many initial directory names */
 163         /*      to stripoff the hardwired absolute paths. Default value is 0. */
 164         if (strncmp(str, SDK_CODE_COVERAGE, strlen(str)) == 0) {
 165                 strncpy(buf_pkgname,_get_pkgname(menu_info),MAX_LOCAL_BUFSZ-1);
 166                 buf_pkgname[MAX_LOCAL_BUFSZ-1]='\0';
 167                 snprintf(buf, MAX_LOCAL_BUFSZ, PATH_TMP"/%s"PATH_DATA
 168                         , strtok(buf_pkgname,"."));
 169                 ret = setenv("GCOV_PREFIX", buf, 1);
 170                 _D("GCOV_PREFIX : %d", ret);
 171                 ret = setenv("GCOV_PREFIX_STRIP", "0", 1);
 172                 _D("GCOV_PREFIX_STRIP : %d", ret);
 173         } else if (strncmp(str, SDK_DYNAMIC_ANALYSIS, strlen(str)) == 0) {
 174                 ret = setenv("LD_PRELOAD", PATH_DA_SO, 1);
 175                 _D("LD_PRELOAD : %d", ret);
 176         }
 177 }
 178
 179
 180 void __set_env(app_info_from_db * menu_info, bundle * kb)
 181 {
 182         const char *str;
 183         const char **str_array;
 184         int len;
 185         int i;
 186
 187         setenv("PKG_NAME", _get_pkgname(menu_info), 1);
 188
 189         USE_ENGINE("gl")
 190
 191         str = bundle_get_val(kb, AUL_K_STARTTIME);
 192         if (str != NULL)
 193                 setenv("APP_START_TIME", str, 1);
 194
 195         if(bundle_get_type(kb, AUL_K_SDK) & BUNDLE_TYPE_ARRAY) {
 196                 str_array = bundle_get_str_array(kb, AUL_K_SDK, &len);
 197                 if(str_array != NULL) {
 198                         for (i = 0; i < len; i++) {
 199                                 _D("index : [%d]", i);
 200                                 __set_sdk_env(menu_info, (char *)str_array[i]);
 201                         }
 202                 }
 203         } else {
 204                 str = bundle_get_val(kb, AUL_K_SDK);
 205                 if(str != NULL) {
 206                         __set_sdk_env(menu_info, (char *)str);
 207                 }
 208         }
 209         if (menu_info->hwacc != NULL)
 210                 setenv("HWACC", menu_info->hwacc, 1);
 211 }
 212
 213 int __prepare_exec(const char *pkg_name,
 214                             const char *app_path, app_info_from_db * menu_info,
 215                             bundle * kb)
 216 {
 217         char *file_name;
 218         char process_name[AUL_PR_NAME];
 219         int ret;
 220
 221         /* Set new session ID & new process group ID*/
 222         /* In linux, child can set new session ID without check permission */
 223         /* TODO : should be add to check permission in the kernel*/
 224         setsid();
 225
 226         __preexec_run(menu_info->pkg_type, pkg_name, app_path);
 227
 228         /* SET OOM*/
 229         __set_oom();
 230
 231         /* SET PRIVILEGES*/
 232         if(bundle_get_val(kb, AUL_K_PRIVACY_APPID) == NULL) {
 233                 _D("pkg_name : %s / pkg_type : %s / app_path : %s ", pkg_name
 234                         , menu_info->pkg_type, app_path);
 235                 if ((ret = __set_access(pkg_name, menu_info->pkg_type
 236                         , app_path)) < 0)
 237                 {
 238                          _D("fail to set privileges - check your package's credential : %d\n"
 239                                 , ret);
 240                         return -1;
 241                 }
 242         }
 243         /* SET DUMPABLE - for coredump*/
 244         prctl(PR_SET_DUMPABLE, 1);
 245
 246         /* SET PROCESS NAME*/
 247         if (app_path == NULL) {
 248                 _D("app_path should not be NULL - check menu db");
 249                 return -1;
 250         }
 251         file_name = strrchr(app_path, '/') + 1;
 252         if (file_name == NULL) {
 253                 _D("can't locate file name to execute");
 254                 return -1;
 255         }
 256         memset(process_name, '\0', AUL_PR_NAME);
 257         snprintf(process_name, AUL_PR_NAME, "%s", file_name);
 258         prctl(PR_SET_NAME, process_name);
 259
 260         /* SET ENVIROMENT*/
 261         __set_env(menu_info, kb);
 262
 263         return 0;
 264 }
 265
 266 int __fake_launch_app(int cmd, int pid, bundle * kb)
 267 {
 268         int datalen;
 269         int ret;
 270         bundle_raw *kb_data;
 271
 272         bundle_encode(kb, &kb_data, &datalen);
 273         if ((ret = __app_send_raw(pid, cmd, kb_data, datalen)) < 0)
 274                 _E("error request fake launch - error code = %d", ret);
 275         free(kb_data);
 276         return ret;
 277 }
 278
 279 char** __add_arg(bundle * kb, char **argv, int *margc, const char *key)
 280 {
 281         const char *str = NULL;
 282         const char **str_array = NULL;
 283         int len = 0;
 284         int i;
 285         char ** new_argv = NULL;
 286
 287         if(bundle_get_type(kb, key) & BUNDLE_TYPE_ARRAY) {
 288                 str_array = bundle_get_str_array(kb, key, &len);
 289         } else {
 290                 str = bundle_get_val(kb, key);
 291                 if(str) {
 292                         str_array = &str;
 293                         len = 1;
 294                 }
 295         }
 296         if(str_array != NULL) {
 297                 if(strncmp(key, DLP_K_DEBUG_ARG, strlen(key)) == 0
 298                         || strncmp(key, DLP_K_VALGRIND_ARG, strlen(key)) == 0)
 299                 {
 300                         new_argv = (char **) realloc(argv
 301                                 , sizeof(char *) * (*margc+len+2));
 302                         if(!new_argv) {
 303                                 _E("realloc fail (key = %s)", key);
 304                                 exit(-1);
 305                         }
 306                         for(i=*margc+len+1; i-(len+1)>=0; i--) {
 307                                 new_argv[i] = new_argv[i-(len+1)];
 308                         }
 309                         // need to add new_argv[0]
 310                         for(i=0; i<len; i++) {
 311                                 new_argv[1+i] = strdup(str_array[i]);
 312                         }
 313                         len++;  /* gdbserver or valgrind */
 314                         _D("uid : %d", getuid());
 315                         _D("euid : %d", geteuid());
 316                         _D("gid : %d", getgid());
 317                         _D("egid : %d", getegid());
 318                 } else {
 319                         new_argv = (char **) realloc(argv
 320                                 , sizeof(char *) * (*margc+len+1));
 321                         if(!new_argv) {
 322                                 _E("realloc fail (key = %s)", key);
 323                                 exit(-1);
 324                         }
 325                         for(i=0; i<len; i++) {
 326                                 new_argv[*margc+i] = strdup(str_array[i]);
 327                         }
 328                 }
 329                 new_argv[*margc+len] = NULL;
 330                 *margc += len;
 331         } else {
 332                 if(strncmp(key, DLP_K_DEBUG_ARG, strlen(key)) == 0
 333                         || strncmp(key, DLP_K_VALGRIND_ARG, strlen(key)) == 0)
 334                 {
 335                         new_argv = (char **) realloc(argv
 336                                 , sizeof(char *) * (*margc+2));
 337                         if(!new_argv) {
 338                                 _E("realloc fail (key = %s)", key);
 339                                 exit(-1);
 340                         }
 341                         for(i=*margc+1; i-1>=0; i--) {
 342                                 new_argv[i] = new_argv[i-1];
 343                         }
 344                         // need to add new_argv[0]
 345                         (*margc)++;
 346                 }
 347         }
 348
 349         if(new_argv==NULL) return argv;
 350         return new_argv;
 351 }
 352
 353 char **__create_argc_argv(bundle * kb, int *margc, const char *app_path)
 354 {
 355         char **argv = NULL;
 356         char **new_argv = NULL;
 357         int argc;
 358
 359         const char *str = NULL;
 360         const char **str_array = NULL;
 361         int len = 0;
 362         int i;
 363
 364         argc = bundle_export_to_argv(kb, &argv);
 365         if (argv) {
 366                 for(i=1; i<argc; i++) {
 367                         argv[i] = strdup(argv[i]);
 368                 }
 369                 argv[0] = strdup(app_path);
 370         } else {
 371                 _E("bundle_export_to_argv error");
 372                 exit(-1);
 373         }
 374
 375         if(bundle_get_type(kb, AUL_K_SDK) & BUNDLE_TYPE_ARRAY) {
 376                 str_array = bundle_get_str_array(kb, AUL_K_SDK, &len);
 377         } else {
 378                 str = bundle_get_val(kb, AUL_K_SDK);
 379                 if(str) {
 380                         str_array = &str;
 381                         len = 1;
 382                 }
 383         }
 384         if(str_array == NULL) {
 385                 *margc = argc;
 386                 return argv;
 387         }
 388
 389         for (i = 0; i < len; i++) {
 390                 if(str_array[i] == NULL) break;
 391                 _D("index : [%d]", i);
 392                 /* gdbserver */
 393                 if (strncmp(str_array[i], SDK_DEBUG, strlen(str_array[i])) == 0)
 394                 {
 395                         char buf[MAX_LOCAL_BUFSZ];
 396                         if (argv[0]) free(argv[0]);
 397                         snprintf(buf,MAX_LOCAL_BUFSZ,"%s.exe",app_path);
 398                         argv[0] = strdup(buf);
 399                         new_argv = __add_arg(kb, argv, &argc, DLP_K_DEBUG_ARG);
 400                         new_argv[0] = strdup(PATH_GDBSERVER);
 401                         argv = new_argv;
 402                 }
 403                 /* valgrind */
 404                 else if (strncmp(str_array[i], SDK_VALGRIND
 405                         , strlen(str_array[i])) == 0)
 406                 {
 407                         new_argv = __add_arg(kb, argv, &argc
 408                                 , DLP_K_VALGRIND_ARG);
 409                         new_argv[0] = strdup(PATH_VALGRIND);
 410                         argv = new_argv;
 411                 }
 412                 /* unit test */
 413                 else if (strncmp(str_array[i], SDK_UNIT_TEST
 414                         , strlen(str_array[i])) == 0)
 415                 {
 416                         new_argv = __add_arg(kb, argv, &argc
 417                                 , DLP_K_UNIT_TEST_ARG);
 418                         argv = new_argv;
 419                 }
 420         }
 421
 422         *margc = argc;
 423         if(new_argv==NULL) return argv;
 424         return new_argv;
 425 }
 426
 427 int __normal_fork_exec(int argc, char **argv)
 428 {
 429         _D("start real fork and exec\n");
 430
 431         if (execv(argv[0], argv) < 0) { /* Flawfinder: ignore */
 432                 if (errno == EACCES) {
 433                         _E("such a file is no executable - %s", argv[0]);
 434                 } else {
 435                         _E("unknown executable error - %s", argv[0]);
 436                 }
 437                 return -1;
 438         }
 439         /* never reach */
 440         return 0;
 441 }
 442
 443 void __real_launch(const char *app_path, bundle * kb)
 444 {
 445         int app_argc;
 446         char **app_argv;
 447         int i;
 448
 449         app_argv = __create_argc_argv(kb, &app_argc, app_path);
 450
 451         for (i = 0; i < app_argc; i++)
 452                 _D("input argument %d : %s##", i, app_argv[i]);
 453
 454         PERF("setup argument done");
 455         _D("lock up test log(no error) : setup argument done");
 456
 457         /* Temporary log: launch time checking */
 458         LOG(LOG_DEBUG, "LAUNCH", "[%s:Platform:launchpad:done]", app_path);
 459
 460         __normal_fork_exec(app_argc, app_argv);
 461
 462         for(i=0; i<app_argc; i++) {
 463                 if(app_argv[i]) free(app_argv[i]);
 464         }
 465         free(app_argv);
 466 }
 467
 468
 469 /*
 470  * Parsing original app path to retrieve default bundle
 471  *
 472  * -1 : Invalid sequence
 473  * -2 : Buffer overflow
 474  *
 475  */
 476 static inline int __parser(const char *arg, char *out, int out_size)
 477 {
 478         register int i;
 479         int state = 1;
 480         char *start_out = out;
 481
 482         if (arg == NULL || out == NULL) {
 483                 /* Handles null buffer*/
 484                 return 0;
 485         }
 486
 487         for (i = 0; out_size > 1; i++) {
 488                 switch (state) {
 489                 case 1:
 490                         switch (arg[i]) {
 491                         case ' ':
 492                         case '\t':
 493                                 state = 5;
 494                                 break;
 495                         case '\0':
 496                                 state = 7;
 497                                 break;
 498                         case '\"':
 499                                 state = 2;
 500                                 break;
 501                         case '\\':
 502                                 state = 4;
 503                                 break;
 504                         default:
 505                                 *out = arg[i];
 506                                 out++;
 507                                 out_size--;
 508                                 break;
 509                         }
 510                         break;
 511                 case 2: /* escape start*/
 512                         switch (arg[i]) {
 513                         case '\0':
 514                                 state = 6;
 515                                 break;
 516                         case '\"':
 517                                 state = 1;
 518                                 break;
 519                         default:
 520                                 *out = arg[i];
 521                                 out++;
 522                                 out_size--;
 523                                 break;
 524                         }
 525                         break;
 526                 case 4: /* character escape*/
 527                         if (arg[i] == '\0') {
 528                                 state = 6;
 529                         } else {
 530                                 *out = arg[i];
 531                                 out++;
 532                                 out_size--;
 533                                 state = 1;
 534                         }
 535                         break;
 536                 case 5: /* token*/
 537                         if (out != start_out) {
 538                                 *out = '\0';
 539                                 out_size--;
 540                                 return i;
 541                         }
 542                         i--;
 543                         state = 1;
 544                         break;
 545                 case 6:
 546                         return -1;      /* error*/
 547                 case 7: /* terminate*/
 548                         *out = '\0';
 549                         out_size--;
 550                         return 0;
 551                 default:
 552                         state = 6;
 553                         break;  /* error*/
 554                 }
 555         }
 556
 557         if (out_size == 1) {
 558                 *out = '\0';
 559         }
 560         /* Buffer overflow*/
 561         return -2;
 562 }
 563
 564 void __modify_bundle(bundle * kb, int caller_pid,
 565                             app_info_from_db * menu_info, int cmd)
 566 {
 567         bundle_del(kb, AUL_K_PKG_NAME);
 568         bundle_del(kb, AUL_K_EXEC);
 569         bundle_del(kb, AUL_K_PACKAGETYPE);
 570         bundle_del(kb, AUL_K_HWACC);
 571
 572         /* Parse app_path to retrieve default bundle*/
 573         if (cmd == APP_START || cmd == APP_START_RES || cmd == APP_OPEN
 574                 || cmd == APP_RESUME)
 575         {
 576                 char *ptr;
 577                 char exe[MAX_PATH_LEN];
 578                 int flag;
 579
 580                 ptr = _get_original_app_path(menu_info);
 581
 582                 flag = __parser(ptr, exe, sizeof(exe));
 583                 if (flag > 0) {
 584                         char key[256];
 585                         char value[256];
 586
 587                         ptr += flag;
 588                         _D("parsing app_path: EXEC - %s\n", exe);
 589
 590                         do {
 591                                 flag = __parser(ptr, key, sizeof(key));
 592                                 if (flag <= 0)
 593                                         break;
 594                                 ptr += flag;
 595
 596                                 flag = __parser(ptr, value, sizeof(value));
 597                                 if (flag < 0)
 598                                         break;
 599                                 ptr += flag;
 600
 601                                 /*bundle_del(kb, key);*/
 602                                 bundle_add(kb, key, value);
 603                         } while (flag > 0);
 604                 } else if (flag == 0) {
 605                         _D("parsing app_path: No arguments\n");
 606                 } else {
 607                         _D("parsing app_path: Invalid argument\n");
 608                 }
 609         }
 610 }
 611
 612 int __send_to_sigkill(int pid)
 613 {
 614         int pgid;
 615
 616         pgid = getpgid(pid);
 617         if (pgid <= 1)
 618                 return -1;
 619
 620         if (killpg(pgid, SIGKILL) < 0)
 621                 return -1;
 622
 623         return 0;
 624 }
 625
 626 int __term_app(int pid)
 627 {
 628         int dummy;
 629         if (__app_send_raw
 630             (pid, APP_TERM_BY_PID, (unsigned char *)&dummy, sizeof(int)) < 0) {
 631                 _D("terminate packet send error - use SIGKILL");
 632                 if (__send_to_sigkill(pid) < 0) {
 633                         _E("fail to killing - %d\n", pid);
 634                         return -1;
 635                 }
 636         }
 637         _D("term done\n");
 638         return 0;
 639 }
 640
 641 static int __get_caller_pid(bundle *kb)
 642 {
 643         const char *pid_str;
 644         int pid;
 645
 646         pid_str = bundle_get_val(kb, AUL_K_ORG_CALLER_PID);
 647         if(pid_str)
 648                 goto end;
 649
 650         pid_str = bundle_get_val(kb, AUL_K_CALLER_PID);
 651         if (pid_str == NULL)
 652                 return -1;
 653
 654 end:
 655         pid = atoi(pid_str);
 656         if (pid <= 1)
 657                 return -1;
 658
 659         return pid;
 660 }
 661
 662 int __foward_cmd(int cmd, bundle *kb, int cr_pid)
 663 {
 664         int pid;
 665         char tmp_pid[MAX_PID_STR_BUFSZ];
 666         int datalen;
 667         bundle_raw *kb_data;
 668         int res;
 669
 670         if ((pid = __get_caller_pid(kb)) < 0)
 671                         return AUL_R_ERROR;
 672
 673         snprintf(tmp_pid, MAX_PID_STR_BUFSZ, "%d", cr_pid);
 674
 675         bundle_add(kb, AUL_K_CALLEE_PID, tmp_pid);
 676
 677         bundle_encode(kb, &kb_data, &datalen);
 678         if ((res = __app_send_raw_with_noreply(pid, cmd, kb_data, datalen)) < 0)
 679                 res = AUL_R_ERROR;
 680
 681         free(kb_data);
 682
 683         return res;
 684 }
 685
 686 void __real_send(int clifd, int ret)
 687 {
 688         if (send(clifd, &ret, sizeof(int), MSG_NOSIGNAL) < 0) {
 689                 if (errno == EPIPE) {
 690                         _E("send failed due to EPIPE.\n");
 691                 }
 692                 _E("send fail to client");
 693         }
 694
 695         close(clifd);
 696 }
 697
 698 void __send_result_to_caller(int clifd, int ret)
 699 {
 700         char *cmdline;
 701         int wait_count;
 702         int cmdline_changed = 0;
 703         int cmdline_exist = 0;
 704
 705         if (clifd == -1)
 706                 return;
 707
 708         if (ret <= 1) {
 709                 __real_send(clifd, ret);
 710                 return;
 711         }
 712         /* check normally was launched?*/
 713         wait_count = 1;
 714         do {
 715                 cmdline = __proc_get_cmdline_bypid(ret);
 716                 if (cmdline == NULL) {
 717                         _E("error founded when being launched with %d", ret);
 718
 719                 } else if (strcmp(cmdline, launchpad_cmdline)) {
 720                         free(cmdline);
 721                         cmdline_changed = 1;
 722                         break;
 723                 } else {
 724                         cmdline_exist = 1;
 725                         free(cmdline);
 726                 }
 727
 728                 _D("-- now wait to change cmdline --");
 729                 usleep(50 * 1000);      /* 50ms sleep*/
 730                 wait_count++;
 731         } while (wait_count <= 20);     /* max 50*20ms will be sleep*/
 732
 733         if ((!cmdline_exist) && (!cmdline_changed)) {
 734                 _E("abnormally launched");
 735                 __real_send(clifd, -1); /* abnormally launched*/
 736                 return;
 737         }
 738
 739         if (!cmdline_changed)
 740                 _E("process launched, but cmdline not changed");
 741
 742         __real_send(clifd, ret);
 743         return;
 744 }
 745
 746 static app_info_from_db *_get_app_info_from_bundle_by_pkgname(
 747         const char *pkgname, bundle *kb)
 748 {
 749         app_info_from_db *menu_info;
 750
 751         menu_info = calloc(1, sizeof(app_info_from_db));
 752         if (menu_info == NULL) {
 753                 return NULL;
 754         }
 755
 756         menu_info->pkg_name = strdup(pkgname);
 757         menu_info->app_path = strdup(bundle_get_val(kb, AUL_K_EXEC));
 758         if (menu_info->app_path != NULL)
 759                 menu_info->original_app_path = strdup(menu_info->app_path);
 760         menu_info->pkg_type = strdup(bundle_get_val(kb, AUL_K_PACKAGETYPE));
 761         menu_info->hwacc = strdup(bundle_get_val(kb, AUL_K_HWACC));
 762
 763         if (!_get_app_path(menu_info)) {
 764                 _free_app_info_from_db(menu_info);
 765                 return NULL;
 766         }
 767
 768         return menu_info;
 769 }
 770
 771 /**
 772  * free after use it
 773  */
 774 int get_native_appid(const char* app_path, char** appid) {
 775         int rc = smack_lgetlabel(app_path, appid, SMACK_LABEL_ACCESS);
 776
 777         if (rc != 0 || *appid == NULL) {
 778                 _E("smack_lgetlabel fail");
 779                 return -1;
 780         }
 781
 782         if (strlen(*appid) != APPID_LEN) {
 783                 _E("wrong native appid : %s", *appid);
 784                 return -1;
 785         }
 786
 787         if (strlen(app_path) < sizeof(PATH_NATIVE_APP)+APPID_LEN-1) {
 788                 _E("wrong native app_path : %s", app_path);
 789                 return -1;
 790         }
 791         else if ( strncmp(app_path, PATH_NATIVE_APP, sizeof(PATH_NATIVE_APP)-1)
 792                 || strncmp(&app_path[sizeof(PATH_NATIVE_APP)-1]
 793                 , *appid,APPID_LEN) )
 794         {
 795                 _E("wrong native app_path : %s", app_path);
 796                 return -1;
 797         }
 798
 799         _D("get_appid return : %s", *appid);
 800         return 0;
 801 }
 802
 803 int apply_smack_rules(const char* subject, const char* object
 804         , const char* access_type)
 805 {
 806         struct smack_accesses *rules = NULL;
 807
 808         _D("apply_smack_rules : %s %s %s", subject, object, access_type);
 809
 810         if (smack_accesses_new(&rules)) {
 811                 _E("smack_accesses_new fail");
 812                 return -1;
 813         }
 814
 815         if (smack_accesses_add(rules, subject, object, access_type)) {
 816                 smack_accesses_free(rules);
 817                 _E("smack_accesses_add fail");
 818                 return -1;
 819         }
 820
 821         if (smack_accesses_apply(rules)) {
 822                 smack_accesses_free(rules);
 823                 _E("smack_accesses_apply fail");
 824                 return -1;
 825         }
 826
 827         smack_accesses_free(rules);
 828
 829         return 0;
 830 }
 831
 832 int __prepare_valgrind_outputfile(bundle *kb)
 833 {
 834         const char *str = NULL;
 835         const char **str_array = NULL;
 836         int len = 0;
 837         int i;
 838
 839         if(bundle_get_type(kb, DLP_K_VALGRIND_ARG) & BUNDLE_TYPE_ARRAY) {
 840                 str_array = bundle_get_str_array(kb, DLP_K_VALGRIND_ARG, &len);
 841         } else {
 842                 str = bundle_get_val(kb, DLP_K_VALGRIND_ARG);
 843                 if(str) {
 844                         str_array = &str;
 845                         len = 1;
 846                 }
 847         }
 848         if(str_array == NULL) return 0;
 849
 850         for (i = 0; i < len; i++) {
 851                 if(str_array[i] == NULL) break;
 852                 /* valgrind log file option */
 853                 if (strncmp(str_array[i], OPT_VALGRIND_LOGFILE
 854                         , strlen(OPT_VALGRIND_LOGFILE)) == 0)
 855                 {
 856                         if(strncmp(str_array[i], OPT_VALGRIND_LOGFILE_FIXED
 857                                 , strlen(str_array[i])))
 858                         {
 859                                 _E("wrong valgrind option(%s). It should be %s"
 860                                         , str_array[i]
 861                                         , OPT_VALGRIND_LOGFILE_FIXED);
 862                                 return 1;
 863                         }else{
 864                                 poll_outputfile |= POLL_VALGRIND_LOGFILE;
 865                                 if(remove(PATH_VALGRIND_LOGFILE)){
 866                                         _D("cannot remove %s"
 867                                                 , PATH_VALGRIND_LOGFILE);
 868                                 }
 869                         }
 870                 }
 871                 /* valgrind xml file option */
 872                 else if (strncmp(str_array[i], OPT_VALGRIND_XMLFILE
 873                         , strlen(OPT_VALGRIND_XMLFILE)) == 0)
 874                 {
 875                         if(strncmp(str_array[i], OPT_VALGRIND_XMLFILE_FIXED
 876                                 , strlen(str_array[i])))
 877                         {
 878                                 _E("wrong valgrind option(%s). It should be %s"
 879                                         , str_array[i]
 880                                         , OPT_VALGRIND_XMLFILE_FIXED);
 881                                 return 1;
 882                         }else{
 883                                 poll_outputfile |= POLL_VALGRIND_XMLFILE;
 884                                 if(remove(PATH_VALGRIND_XMLFILE)){
 885                                         _D("cannot remove %s"
 886                                                 , PATH_VALGRIND_XMLFILE);
 887                                 }
 888                         }
 889                 }
 890         }
 891         return 0;
 892 }
 893
 894 extern int capset(cap_user_header_t hdrp, const cap_user_data_t datap);
 895
 896 int __adjust_process_capability(int sv)
 897 {
 898         static struct __user_cap_header_struct h;
 899         static struct __user_cap_data_struct ori_d[_LINUX_CAPABILITY_U32S_2];
 900         static struct __user_cap_data_struct inh_d[_LINUX_CAPABILITY_U32S_2];
 901         static int isinit = 0;
 902
 903         if(isinit==0) {
 904                 h.version = _LINUX_CAPABILITY_VERSION_2;
 905                 h.pid = getpid();
 906
 907                 capget(&h, ori_d);
 908                 capget(&h, inh_d);
 909
 910                 inh_d[CAP_TO_INDEX(CAP_NET_RAW)].inheritable |=
 911                         CAP_TO_MASK(CAP_NET_RAW);
 912                 inh_d[CAP_TO_INDEX(CAP_SYS_CHROOT)].inheritable |=
 913                         CAP_TO_MASK(CAP_SYS_CHROOT);
 914
 915                 isinit++;
 916
 917                 if(sv == CAPABILITY_SET_ORIGINAL) return 0;
 918         }
 919
 920         if(isinit==0) {
 921                 _E("__adjust_process_capability init failed");
 922                 return -1;
 923         }
 924
 925         if(sv == CAPABILITY_SET_ORIGINAL) {
 926                 h.pid = getpid();
 927                 if (capset(&h, ori_d) < 0) {
 928                         _E("Capability setting error");
 929                         return -1;
 930                 }
 931         }
 932         else if (sv == CAPABILITY_SET_INHERITABLE) {
 933                 h.pid = getpid();
 934                 if (capset(&h, inh_d) < 0) {
 935                         _E("Capability setting error");
 936                         return -1;
 937                 }
 938         }
 939
 940         return 0;
 941 }
 942
 943 int __adjust_file_capability(const char * path)
 944 {
 945         if(cap_set_file(path,cap_from_text("CAP_NET_RAW,CAP_SYS_CHROOT+i"))) {
 946                 _E("cap_set_file failed : %s", path);
 947                 return -1;
 948         }
 949         return 0;
 950 }
 951
 952 int __prepare_fork(bundle *kb, char *appid)
 953 {
 954         const char *str = NULL;
 955         const char **str_array = NULL;
 956         int len = 0;
 957         int i;
 958
 959         need_to_set_inh_cap_after_fork=0;
 960         poll_outputfile = 0;
 961         if(bundle_get_type(kb, AUL_K_SDK) & BUNDLE_TYPE_ARRAY) {
 962                 str_array = bundle_get_str_array(kb, AUL_K_SDK, &len);
 963         } else {
 964                 str = bundle_get_val(kb, AUL_K_SDK);
 965                 if(str) {
 966                         str_array = &str;
 967                         len = 1;
 968                 }
 969         }
 970         if(str_array == NULL) return 0;
 971
 972         for (i = 0; i < len; i++) {
 973                 if(str_array[i] == NULL) break;
 974                 /* gdbserver */
 975                 if (strncmp(str_array[i], SDK_DEBUG, strlen(str_array[i])) == 0)
 976                 {
 977                         if(apply_smack_rules("sdbd",appid,"w")) {
 978                                 _E("unable to set sdbd rules");
 979                                 return 1;
 980                         }
 981
 982                         // FIXME: set gdbfolder to 755 also
 983                         if(dlp_chmod(PATH_GDBSERVER
 984                                 , S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP
 985                                 |S_IROTH|S_IXOTH
 986                                 , 1))
 987                         {
 988                                 _D("unable to set 755 to %s", PATH_GDBSERVER);
 989                         }
 990                         __adjust_file_capability(PATH_GDBSERVER);
 991                         need_to_set_inh_cap_after_fork++;
 992                 }
 993                 /* valgrind */
 994                 else if (strncmp(str_array[i], SDK_VALGRIND
 995                         , strlen(str_array[i])) == 0)
 996                 {
 997                         if (__prepare_valgrind_outputfile(kb)) return 1;
 998                         __adjust_file_capability(PATH_MEMCHECK);
 999                 }
1000         }
1001         return 0;
1002 }
1003
1004 /* chmod and chsmack to read file without root privilege */
1005 void __chmod_chsmack_toread(const char * path)
1006 {
1007         /* chmod */
1008         if(dlp_chmod(path, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH, 0))
1009         {
1010                 _E("unable to set 644 to %s", path);
1011         }else{
1012                 _D("set 644 to %s", path);
1013         }
1014
1015         /* chsmack */
1016         if(smack_setlabel(path, "*", SMACK_LABEL_ACCESS))
1017         {
1018                 _E("failed chsmack -a \"*\" %s", path);
1019         }else{
1020                 _D("chsmack -a \"*\" %s", path);
1021         }
1022
1023         return;
1024 }
1025
1026 /* waiting for creating outputfile by child process */
1027 void __waiting_outputfile()
1028 {
1029         int wait_count = 0;
1030         while(poll_outputfile && wait_count<10) {
1031                 /* valgrind log file */
1032                 if( (poll_outputfile & POLL_VALGRIND_LOGFILE)
1033                         && (access(PATH_VALGRIND_LOGFILE,F_OK)==0) )
1034                 {
1035                         __chmod_chsmack_toread(PATH_VALGRIND_LOGFILE);
1036                         poll_outputfile &= ~POLL_VALGRIND_LOGFILE;
1037                 }
1038
1039                 /* valgrind xml file */
1040                 if( (poll_outputfile & POLL_VALGRIND_XMLFILE)
1041                         && (access(PATH_VALGRIND_XMLFILE,F_OK)==0) )
1042                 {
1043                         __chmod_chsmack_toread(PATH_VALGRIND_XMLFILE);
1044                         poll_outputfile &= ~POLL_VALGRIND_XMLFILE;
1045                 }
1046
1047                 if(poll_outputfile) {
1048                         _D("-- now wait for creating the file --");
1049                         usleep(50 * 1000);      /* 50ms sleep*/
1050                         wait_count++;
1051                 }
1052         }
1053
1054         if(wait_count==10) _E("faild to waiting");
1055         return;
1056 }
1057
1058 int __stdout_stderr_redirection(int defpid)
1059 {
1060         char defpath[UNIX_PATH_MAX];
1061         int deffd, result=0;
1062
1063         /* stdout */
1064         snprintf(defpath, UNIX_PATH_MAX, "/proc/%d/fd/1", defpid);
1065         deffd = open(defpath,O_WRONLY);
1066         if(deffd < 0) {
1067                 _E("opening caller(%d) stdout failed due to %s"
1068                         , defpid, strerror(errno));
1069                 result++;
1070         }else{
1071                 dup2(deffd, 1);
1072                 close(deffd);
1073         }
1074
1075         /* stderr */
1076         snprintf(defpath, UNIX_PATH_MAX, "/proc/%d/fd/2", defpid);
1077         deffd = open(defpath,O_WRONLY);
1078         if(deffd < 0) {
1079                 _E("opening caller(%d) stderr failed due to %s"
1080                         , defpid,strerror(errno));
1081                 result+=2;
1082         }else{
1083                 dup2(deffd, 2);
1084                 close(deffd);
1085         }
1086
1087         return result;
1088 }
1089
1090 void __launchpad_main_loop(int main_fd)
1091 {
1092         bundle *kb = NULL;
1093         app_pkt_t *pkt = NULL;
1094         app_info_from_db *menu_info = NULL;
1095
1096         const char *pkg_name = NULL;
1097         const char *app_path = NULL;
1098         int pid = -1;
1099         int clifd = -1;
1100         struct ucred cr;
1101         int is_real_launch = 0;
1102
1103         char sock_path[UNIX_PATH_MAX] = {0,};
1104         char * appid = NULL;
1105
1106         pkt = __app_recv_raw(main_fd, &clifd, &cr);
1107         if (!pkt) {
1108                 _D("packet is NULL");
1109                 goto end;
1110         }
1111
1112         kb = bundle_decode(pkt->data, pkt->len);
1113         if (!kb) {
1114                 _D("bundle decode error");
1115                 goto end;
1116         }
1117
1118         INIT_PERF(kb);
1119         PERF("packet processing start");
1120
1121         pkg_name = bundle_get_val(kb, AUL_K_PKG_NAME);
1122         _D("pkg name : %s\n", pkg_name);
1123
1124         menu_info = _get_app_info_from_bundle_by_pkgname(pkg_name, kb);
1125         if (menu_info == NULL) {
1126                 _D("such pkg no found");
1127                 goto end;
1128         }
1129
1130         app_path = _get_app_path(menu_info);
1131         if(app_path == NULL) {
1132                 _E("app_path is NULL");
1133                 goto end;
1134         }
1135         if (app_path[0] != '/') {
1136                 _D("app_path is not absolute path");
1137                 goto end;
1138         }
1139
1140         {
1141                 int rc = get_native_appid(app_path,&appid);
1142                 if(rc!=0 || appid==NULL) {
1143                         _E("unable to get native appid");
1144                         if(appid){
1145                                 free(appid);
1146                                 appid = NULL;
1147                         }
1148                         goto end;
1149                 }
1150         }
1151
1152         __modify_bundle(kb, cr.pid, menu_info, pkt->cmd);
1153         pkg_name = _get_pkgname(menu_info);
1154
1155         PERF("get package information & modify bundle done");
1156
1157         if(__prepare_fork(kb,appid)) goto end;
1158
1159         pid = fork();
1160         if (pid == 0) {
1161                 if(need_to_set_inh_cap_after_fork) {
1162                         __adjust_process_capability(CAPABILITY_SET_INHERITABLE);
1163                 }
1164                 PERF("fork done");
1165                 _D("lock up test log(no error) : fork done");
1166
1167                 close(clifd);
1168                 close(main_fd);
1169                 __signal_unset_sigchld();
1170                 __signal_fini();
1171
1172                 snprintf(sock_path, UNIX_PATH_MAX, "%s/%d", AUL_SOCK_PREFIX
1173                         , getpid());
1174                 unlink(sock_path);
1175
1176                 if(__stdout_stderr_redirection(__get_caller_pid(kb))) {
1177                         _E("__stdout_stderr_redirection fail");
1178                 }
1179
1180                 PERF("prepare exec - first done");
1181                 _D("lock up test log(no error) : prepare exec - first done");
1182
1183                 if (__prepare_exec(pkg_name, app_path,
1184                                    menu_info, kb) < 0) {
1185                         _E("preparing work fail to launch - "
1186                            "can not launch %s\n", pkg_name);
1187                         exit(-1);
1188                 }
1189
1190                 PERF("prepare exec - second done");
1191                 _D("lock up test log(no error) : prepare exec - second done");
1192
1193                 __real_launch(app_path, kb);
1194
1195                 exit(-1);
1196         }
1197
1198         _D("==> real launch pid : %d %s\n", pid, app_path);
1199         is_real_launch = 1;
1200
1201  end:
1202         __send_result_to_caller(clifd, pid);
1203
1204         if (pid > 0) {
1205                 if (is_real_launch) {
1206                         /*TODO: retry*/
1207                         __signal_block_sigchld();
1208                         __send_app_launch_signal(pid);
1209                         __signal_unblock_sigchld();
1210                 }
1211         }
1212
1213         if (menu_info != NULL)
1214                 _free_app_info_from_db(menu_info);
1215
1216         if (kb != NULL)
1217                 bundle_free(kb);
1218         if (pkt != NULL)
1219                 free(pkt);
1220         if (appid != NULL)
1221                 free(appid);
1222
1223         /* Active Flusing for Daemon */
1224         if (initialized > AUL_POLL_CNT) {
1225                 sqlite3_release_memory(SQLITE_FLUSH_MAX);
1226                 malloc_trim(0);
1227                 initialized = 1;
1228         }
1229
1230         if(poll_outputfile) __waiting_outputfile();
1231 }
1232
1233 int __launchpad_pre_init(int argc, char **argv)
1234 {
1235         int fd;
1236
1237         /* signal init*/
1238         __signal_init();
1239
1240         /* get my(launchpad) command line*/
1241         launchpad_cmdline = __proc_get_cmdline_bypid(getpid());
1242         if (launchpad_cmdline == NULL) {
1243                 _E("launchpad cmdline fail to get");
1244                 return -1;
1245         }
1246         _D("launchpad cmdline = %s", launchpad_cmdline);
1247
1248         /* create launchpad sock        */
1249         fd = __create_server_sock(DEBUG_LAUNCHPAD_PID);
1250         if (fd < 0) {
1251                 _E("server sock error");
1252                 return -1;
1253         }
1254
1255         __preload_init(argc, argv);
1256
1257         __preexec_init(argc, argv);
1258
1259         return fd;
1260 }
1261
1262 int __launchpad_post_init()
1263 {
1264         /* Setting this as a global variable to keep track
1265         of launchpad poll cnt */
1266         /* static int initialized = 0;*/
1267
1268         if (initialized) {
1269                 initialized++;
1270                 return 0;
1271         }
1272
1273         if (__signal_set_sigchld() < 0)
1274                 return -1;
1275
1276         initialized++;
1277
1278         return 0;
1279 }
1280
1281 int main(int argc, char **argv)
1282 {
1283         int main_fd;
1284         struct pollfd pfds[POLLFD_MAX];
1285         int i;
1286
1287         __adjust_process_capability(CAPABILITY_SET_ORIGINAL);
1288
1289         /* init without concerning X & EFL*/
1290         main_fd = __launchpad_pre_init(argc, argv);
1291         if (main_fd < 0) {
1292                 _E("launchpad pre init failed");
1293                 exit(-1);
1294         }
1295
1296         pfds[0].fd = main_fd;
1297         pfds[0].events = POLLIN;
1298         pfds[0].revents = 0;
1299
1300         while (1) {
1301                 if (poll(pfds, POLLFD_MAX, -1) < 0)
1302                         continue;
1303
1304                 /* init with concerning X & EFL (because of booting
1305                 sequence problem)*/
1306                 if (__launchpad_post_init() < 0) {
1307                         _E("launcpad post init failed");
1308                         exit(-1);
1309                 }
1310
1311                 for (i = 0; i < POLLFD_MAX; i++) {
1312                         if ((pfds[i].revents & POLLIN) != 0) {
1313                                 __launchpad_main_loop(pfds[i].fd);
1314                         }
1315                 }
1316         }
1317 }
1318