--- /dev/null
+mount_root
+board
+kmodloader
+lsbloader
+.*
+Makefile
+CMakeCache.txt
+CMakeFiles
+*.cmake
+install_manifest.txt
--- /dev/null
+cmake_minimum_required(VERSION 2.6)
+
+PROJECT(procd C)
+ADD_DEFINITIONS(-Os -ggdb -Wall -Werror --std=gnu99 -Wmissing-declarations)
+
+SET(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "")
+
+IF(APPLE)
+ INCLUDE_DIRECTORIES(/opt/local/include)
+ LINK_DIRECTORIES(/opt/local/lib)
+ENDIF()
+
+find_library(json NAMES json-c json)
+SET(LIBS ubox ubus ${json} blobmsg_json)
+
+IF(DEBUG)
+ ADD_DEFINITIONS(-DDEBUG -g3)
+ENDIF()
+
+ADD_EXECUTABLE(mount_root mount_root.c)
+TARGET_LINK_LIBRARIES(mount_root ${LIBS})
+
+INSTALL(TARGETS mount_root
+ RUNTIME DESTINATION sbin
+)
+
+ADD_EXECUTABLE(kmodloader kmodloader.c)
+TARGET_LINK_LIBRARIES(kmodloader ${LIBS})
+
+INSTALL(TARGETS kmodloader
+ RUNTIME DESTINATION sbin
+)
+
+ADD_EXECUTABLE(board board.c)
+TARGET_LINK_LIBRARIES(board ${LIBS})
+
+INSTALL(TARGETS board
+ RUNTIME DESTINATION sbin
+)
+
+ADD_EXECUTABLE(lsbloader lsbloader.c)
+TARGET_LINK_LIBRARIES(lsbloader ${LIBS})
+
+INSTALL(TARGETS lsbloader
+ RUNTIME DESTINATION sbin
+)
--- /dev/null
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+
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+
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+
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+
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+
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+
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+.PHONY : install/strip
+
+# Special rule for the target install/strip
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+.PHONY : rebuild_cache
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+# Special rule for the target rebuild_cache
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+.PHONY : rebuild_cache/fast
+
+# The main all target
+all: cmake_check_build_system
+ $(CMAKE_COMMAND) -E cmake_progress_start /openwrt/ubox/CMakeFiles /openwrt/ubox/CMakeFiles/progress.marks
+ $(MAKE) -f CMakeFiles/Makefile2 all
+ $(CMAKE_COMMAND) -E cmake_progress_start /openwrt/ubox/CMakeFiles 0
+.PHONY : all
+
+# The main clean target
+clean:
+ $(MAKE) -f CMakeFiles/Makefile2 clean
+.PHONY : clean
+
+# The main clean target
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+# Prepare targets for installation.
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+ $(MAKE) -f CMakeFiles/Makefile2 preinstall
+.PHONY : preinstall
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+ $(MAKE) -f CMakeFiles/Makefile2 preinstall
+.PHONY : preinstall/fast
+
+# clear depends
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+ $(CMAKE_COMMAND) -H$(CMAKE_SOURCE_DIR) -B$(CMAKE_BINARY_DIR) --check-build-system CMakeFiles/Makefile.cmake 1
+.PHONY : depend
+
+#=============================================================================
+# Target rules for targets named board
+
+# Build rule for target.
+board: cmake_check_build_system
+ $(MAKE) -f CMakeFiles/Makefile2 board
+.PHONY : board
+
+# fast build rule for target.
+board/fast:
+ $(MAKE) -f CMakeFiles/board.dir/build.make CMakeFiles/board.dir/build
+.PHONY : board/fast
+
+#=============================================================================
+# Target rules for targets named kmodloader
+
+# Build rule for target.
+kmodloader: cmake_check_build_system
+ $(MAKE) -f CMakeFiles/Makefile2 kmodloader
+.PHONY : kmodloader
+
+# fast build rule for target.
+kmodloader/fast:
+ $(MAKE) -f CMakeFiles/kmodloader.dir/build.make CMakeFiles/kmodloader.dir/build
+.PHONY : kmodloader/fast
+
+#=============================================================================
+# Target rules for targets named lsbloader
+
+# Build rule for target.
+lsbloader: cmake_check_build_system
+ $(MAKE) -f CMakeFiles/Makefile2 lsbloader
+.PHONY : lsbloader
+
+# fast build rule for target.
+lsbloader/fast:
+ $(MAKE) -f CMakeFiles/lsbloader.dir/build.make CMakeFiles/lsbloader.dir/build
+.PHONY : lsbloader/fast
+
+#=============================================================================
+# Target rules for targets named mount_root
+
+# Build rule for target.
+mount_root: cmake_check_build_system
+ $(MAKE) -f CMakeFiles/Makefile2 mount_root
+.PHONY : mount_root
+
+# fast build rule for target.
+mount_root/fast:
+ $(MAKE) -f CMakeFiles/mount_root.dir/build.make CMakeFiles/mount_root.dir/build
+.PHONY : mount_root/fast
+
+board.o: board.c.o
+.PHONY : board.o
+
+# target to build an object file
+board.c.o:
+ $(MAKE) -f CMakeFiles/board.dir/build.make CMakeFiles/board.dir/board.c.o
+.PHONY : board.c.o
+
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+.PHONY : board.i
+
+# target to preprocess a source file
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+ $(MAKE) -f CMakeFiles/board.dir/build.make CMakeFiles/board.dir/board.c.i
+.PHONY : board.c.i
+
+board.s: board.c.s
+.PHONY : board.s
+
+# target to generate assembly for a file
+board.c.s:
+ $(MAKE) -f CMakeFiles/board.dir/build.make CMakeFiles/board.dir/board.c.s
+.PHONY : board.c.s
+
+kmodloader.o: kmodloader.c.o
+.PHONY : kmodloader.o
+
+# target to build an object file
+kmodloader.c.o:
+ $(MAKE) -f CMakeFiles/kmodloader.dir/build.make CMakeFiles/kmodloader.dir/kmodloader.c.o
+.PHONY : kmodloader.c.o
+
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+.PHONY : kmodloader.i
+
+# target to preprocess a source file
+kmodloader.c.i:
+ $(MAKE) -f CMakeFiles/kmodloader.dir/build.make CMakeFiles/kmodloader.dir/kmodloader.c.i
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+.PHONY : kmodloader.s
+
+# target to generate assembly for a file
+kmodloader.c.s:
+ $(MAKE) -f CMakeFiles/kmodloader.dir/build.make CMakeFiles/kmodloader.dir/kmodloader.c.s
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+
+lsbloader.o: lsbloader.c.o
+.PHONY : lsbloader.o
+
+# target to build an object file
+lsbloader.c.o:
+ $(MAKE) -f CMakeFiles/lsbloader.dir/build.make CMakeFiles/lsbloader.dir/lsbloader.c.o
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+
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+# target to preprocess a source file
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+# target to generate assembly for a file
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+
+mount_root.o: mount_root.c.o
+.PHONY : mount_root.o
+
+# target to build an object file
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+ $(MAKE) -f CMakeFiles/mount_root.dir/build.make CMakeFiles/mount_root.dir/mount_root.c.o
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+
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+.PHONY : mount_root.i
+
+# target to preprocess a source file
+mount_root.c.i:
+ $(MAKE) -f CMakeFiles/mount_root.dir/build.make CMakeFiles/mount_root.dir/mount_root.c.i
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+
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+.PHONY : mount_root.s
+
+# target to generate assembly for a file
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+ $(MAKE) -f CMakeFiles/mount_root.dir/build.make CMakeFiles/mount_root.dir/mount_root.c.s
+.PHONY : mount_root.c.s
+
+# Help Target
+help:
+ @echo "The following are some of the valid targets for this Makefile:"
+ @echo "... all (the default if no target is provided)"
+ @echo "... clean"
+ @echo "... depend"
+ @echo "... board"
+ @echo "... edit_cache"
+ @echo "... install"
+ @echo "... install/local"
+ @echo "... install/strip"
+ @echo "... kmodloader"
+ @echo "... list_install_components"
+ @echo "... lsbloader"
+ @echo "... mount_root"
+ @echo "... rebuild_cache"
+ @echo "... board.o"
+ @echo "... board.i"
+ @echo "... board.s"
+ @echo "... kmodloader.o"
+ @echo "... kmodloader.i"
+ @echo "... kmodloader.s"
+ @echo "... lsbloader.o"
+ @echo "... lsbloader.i"
+ @echo "... lsbloader.s"
+ @echo "... mount_root.o"
+ @echo "... mount_root.i"
+ @echo "... mount_root.s"
+.PHONY : help
+
+
+
+#=============================================================================
+# Special targets to cleanup operation of make.
+
+# Special rule to run CMake to check the build system integrity.
+# No rule that depends on this can have commands that come from listfiles
+# because they might be regenerated.
+cmake_check_build_system:
+ $(CMAKE_COMMAND) -H$(CMAKE_SOURCE_DIR) -B$(CMAKE_BINARY_DIR) --check-build-system CMakeFiles/Makefile.cmake 0
+.PHONY : cmake_check_build_system
+
--- /dev/null
+/*
+ * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 2.1
+ * as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include <libubox/blobmsg_json.h>
+
+#define CONFIG_FILE "/etc/boards.json"
+#define MODEL_FILE "/proc/devicetree/model"
+#define CPU_INFO "/proc/cpuinfo"
+
+enum {
+ BOARD_ID,
+ __BOARD_MAX
+};
+
+static struct blob_buf b;
+
+static const struct blobmsg_policy board_policy[__BOARD_MAX] = {
+ [BOARD_ID] = { .name = "id", .type = BLOBMSG_TYPE_STRING },
+};
+
+static char* detect_mips_machine(void)
+{
+ FILE *fp;
+ static char line[64];
+ char *ret = NULL;
+
+ fp = fopen(CPU_INFO, "r");
+ if (!fp) {
+ perror("fopen");
+ return NULL;
+ }
+
+ while (fgets(line, sizeof(line), fp)) {
+ if (!strncmp(line, "machine", 7)) {
+ char *machine = strstr(line, ": ");
+
+ if (!machine)
+ continue;
+
+ machine[strlen(machine) - 1] = '\0';
+
+ ret = &machine[2];
+ break;
+ }
+ }
+
+ fclose(fp);
+
+ return ret;
+}
+
+static char* detect_devicetree_model(void)
+{
+ FILE *fp;
+ static char line[64];
+ char *ret = NULL;
+ struct stat s;
+
+ if (stat(MODEL_FILE, &s) || !S_ISREG(s.st_mode))
+ return NULL;
+
+ fp = fopen(MODEL_FILE, "r");
+ if (!fp) {
+ perror("fopen");
+ return NULL;
+ }
+
+ if (!fgets(line, sizeof(line), fp))
+ ret = line;
+
+ fclose(fp);
+
+ return ret;
+}
+
+static char* board_id(struct blob_attr *msg)
+{
+ struct blob_attr *tb[__BOARD_MAX];
+
+ blobmsg_parse(board_policy, __BOARD_MAX, tb, blobmsg_data(msg), blobmsg_data_len(msg));
+ if (tb[BOARD_ID])
+ return blobmsg_data(tb[BOARD_ID]);
+
+ return NULL;
+}
+
+static void write_file(char *file, char *val)
+{
+ FILE *fp;
+
+ fp = fopen(file, "w");
+ if (fp) {
+ fprintf(fp, val);
+ fclose(fp);
+ } else {
+ perror("fopen");
+ }
+
+}
+
+static int set_board(char *board, char *boardid)
+{
+ if (!boardid) {
+ fprintf(stderr, "failed to detect board %s\n", board);
+ return -1;
+ }
+ printf("detected %s - %s\n", board, boardid);
+
+ mkdir("/tmp/sysinfo", 0755);
+
+ write_file("/tmp/sysinfo/model", board);
+ write_file("/tmp/sysinfo/board_name", boardid);
+
+ return 0;
+}
+
+static int load_json(char *file)
+{
+ struct stat s;
+ int fd;
+ char *buf;
+
+ if (stat(file, &s) || !S_ISREG(s.st_mode)) {
+ fprintf(stderr, "failed to open %s\n", file);
+ return -1;
+ }
+
+ buf = malloc(s.st_size + 1);
+ if (!buf) {
+ perror("malloc");
+ return -1;
+ }
+
+ fd = open(file, O_RDONLY);
+ if (!fd) {
+ perror("open");
+ return -1;
+ }
+
+ if (read(fd, buf, s.st_size) != s.st_size) {
+ fprintf(stderr, "failed to read %s - %d bytes\n", file, (int)s.st_size);
+ close(fd);
+ return -1;
+ }
+ close(fd);
+ buf[s.st_size] = '\0';
+
+ blob_buf_init(&b, 0);
+ if (!blobmsg_add_json_from_string(&b, buf)) {
+ fprintf(stderr, "Failed to read json\n");
+ return - 1;
+ }
+ free(buf);
+
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ struct blob_attr *cur;
+ char *board;
+ int rem;
+
+ board = detect_mips_machine();
+ if (!board)
+ detect_devicetree_model();
+ if (!board) {
+ fprintf(stderr, "failed to detect board\n");
+ return -1;
+ }
+
+ if (load_json(CONFIG_FILE))
+ return -1;
+
+ blob_for_each_attr(cur, b.head, rem) {
+ if (blobmsg_type(cur) != BLOBMSG_TYPE_TABLE)
+ continue;
+ if (!strcmp(blobmsg_name(cur), board)) {
+ char *id = board_id(cur);
+
+ if (id)
+ return set_board(board, id);
+ }
+ }
+
+ fprintf(stderr, "failed to identify %s\n", board);
+
+ return -1;
+}
--- /dev/null
+/*
+ * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 2.1
+ * as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#define _GNU_SOURCE
+#include <sys/syscall.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <values.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <syslog.h>
+#include <glob.h>
+#include <sys/utsname.h>
+
+#define DEF_MOD_PATH "/lib/modules/%s/%s.ko"
+static int insmod(char *module, const char *options)
+{
+ struct utsname ver;
+ char path[256];
+ void *data = 0;
+ struct stat s;
+ int fd, ret = -1;
+
+ uname(&ver);
+ snprintf(path, 256, DEF_MOD_PATH, ver.release, module);
+
+ if (stat(path, &s)) {
+ fprintf(stderr, "missing module %s\n", path);
+ return ret;
+ }
+
+ fd = open(path, O_RDONLY);
+ if (!fd) {
+ fprintf(stderr, "cannot open %s\n", path);
+ return ret;
+ }
+
+ data = malloc(s.st_size);
+ if (read(fd, data, s.st_size) == s.st_size) {
+ ret = syscall(__NR_init_module, data, s.st_size, options);
+ if (ret)
+ fprintf(stderr, "failed insert %s\n", module);
+ } else {
+ fprintf(stderr, "failed to read full module %s\n", path);
+ }
+
+ close(fd);
+ free(data);
+
+ return ret;
+}
+
+/*static void rmmod(char *module)
+{
+ syscall(__NR_delete_module, module, 0);
+}*/
+
+int main(int argc, char **argv)
+{
+ glob_t gl;
+ int gl_flags = GLOB_NOESCAPE | GLOB_MARK;
+ char *tmp = malloc(256);
+ char *dir = "/etc/modules.d/*";
+
+ if (argc > 1)
+ dir = argv[1];
+
+ syslog(0, "kmodloader: loading kernel modules from %s\n", dir);
+
+ if (glob(dir, gl_flags, NULL, &gl) >= 0) {
+ int j;
+
+ for (j = 0; j < gl.gl_pathc; j++) {
+ FILE *fp = fopen(gl.gl_pathv[j], "r");
+
+ if (!fp) {
+ fprintf(stderr, "failed to open %s\n", gl.gl_pathv[j]);
+ } else {
+ char mod[64];
+
+ while (fgets(mod, 64, fp)) {
+ mod[strlen(mod) - 1] = '\0';
+ insmod(mod, "");
+ }
+ fclose(fp);
+ }
+ }
+ }
+
+ globfree(&gl);
+ free(tmp);
+
+ return 0;
+}
--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) 2012 John Crispin <blogic@openwrt.org>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#define __USE_GNU
+#include <string.h>
+#include <regex.h>
+#include <glob.h>
+
+#include <libubox/list.h>
+#include <libubox/blobmsg_json.h>
+#include "libubus.h"
+
+struct initd {
+ struct list_head list;
+
+ char *name;
+ char *exec;
+ char *desc;
+ char *tpl;
+ char **deps;
+ int start;
+ int stop;
+};
+
+static LIST_HEAD(initds);
+static regex_t pat_provides, pat_require, pat_start, pat_stop, pat_desc, pat_exec, pat_tpl;
+static struct ubus_context *ctx;
+static struct blob_buf b;
+static uint32_t service;
+
+static void initd_free(struct initd *i)
+{
+ if (i->name)
+ free(i->name);
+ if (i->exec)
+ free(i->exec);
+ if (i->desc)
+ free(i->desc);
+ if (i->tpl)
+ free(i->tpl);
+}
+
+static int initd_parse(const char *file)
+{
+ FILE *fp;
+ struct initd *i;
+ regmatch_t matches[2];
+ char buffer[1024];
+ ssize_t len;
+
+ fp = fopen(file, "r");
+ if (!fp) {
+ fprintf(stderr, "failed to open %s\n", file);
+ return -1;
+ }
+ len = fread(buffer, 1, sizeof(buffer) - 1, fp);
+ fclose(fp);
+
+ if (len < 1) {
+ fprintf(stderr, "failed to read from %s\n", file);
+ return -1;
+ }
+ buffer[len] = '\0';
+
+ i = malloc(sizeof(struct initd));
+ if (!i) {
+ fprintf(stderr, "failed to alloc initd struct\n");
+ return -1;
+ }
+ memset(i, 0, sizeof(*i));
+
+ if (!regexec(&pat_provides, buffer, 2, matches, 0))
+ i->name = strndup(buffer + matches[1].rm_so, (size_t)matches[1].rm_eo - matches[1].rm_so);
+ if (!regexec(&pat_exec, buffer, 2, matches, 0))
+ i->exec = strndup(buffer + matches[1].rm_so, matches[1].rm_eo - matches[1].rm_so);
+ if (!regexec(&pat_desc, buffer, 2, matches, 0))
+ i->desc = strndup(buffer + matches[1].rm_so, matches[1].rm_eo - matches[1].rm_so);
+ if (!regexec(&pat_tpl, buffer, 2, matches, 0))
+ i->tpl = strndup(buffer + matches[1].rm_so, matches[1].rm_eo - matches[1].rm_so);
+ if (!regexec(&pat_start, buffer, 2, matches, 0))
+ i->start += atoi(buffer + matches[1].rm_so);
+ if (!regexec(&pat_stop, buffer, 2, matches, 0))
+ i->stop += atoi(buffer + matches[1].rm_so);
+
+ if (i->name && i->exec)
+ list_add(&i->list, &initds);
+ else
+ initd_free(i);
+
+ return 0;
+}
+
+static void initd_init(void)
+{
+ int gl_flags = GLOB_NOESCAPE | GLOB_MARK;
+ glob_t gl;
+
+ regcomp(&pat_provides, "# Provides:[ \t]*([a-zA-Z0-9]+)", REG_EXTENDED);
+ regcomp(&pat_require, "# Required-Start:[ \t]*([a-zA-Z0-9 ]+)", REG_EXTENDED);
+ regcomp(&pat_start, "# Default-Start:[ \t]*([0-9])", REG_EXTENDED);
+ regcomp(&pat_stop, "# Default-Stop:[ \t]*([0-9])", REG_EXTENDED);
+ regcomp(&pat_desc, "# Description:[ \t]*([a-zA-Z0-9 ]+)", REG_EXTENDED);
+ regcomp(&pat_exec, "# X-Exec:[ \t]*([a-zA-Z0-9/ ]+)", REG_EXTENDED);
+ regcomp(&pat_tpl, "# X-Template:[ \t]*([a-zA-Z0-9/.]+)", REG_EXTENDED);
+
+ if (glob("/etc/rc.d/P*", gl_flags, NULL, &gl) >= 0) {
+ int j;
+ for (j = 0; j < gl.gl_pathc; j++)
+ initd_parse(gl.gl_pathv[j]);
+ }
+ globfree(&gl);
+
+ regfree(&pat_provides);
+ regfree(&pat_require);
+ regfree(&pat_start);
+ regfree(&pat_stop);
+ regfree(&pat_desc);
+ regfree(&pat_exec);
+ regfree(&pat_tpl);
+}
+
+static int init_services(void)
+{
+ struct initd *i;
+ void *instances, *instance, *command;
+
+ list_for_each_entry(i, &initds, list) {
+ char *t;
+
+ blob_buf_init(&b, 0);
+ blobmsg_add_string(&b, "name", i->name);
+ instances = blobmsg_open_table(&b, "instances");
+ instance = blobmsg_open_table(&b, "instance");
+ command = blobmsg_open_array(&b, "command");
+ t = strtok(i->exec, " ");
+ while (t) {
+ blobmsg_add_string(&b, NULL, t);
+ t = strtok(NULL, " ");
+ }
+ blobmsg_close_array(&b, command);
+ blobmsg_close_table(&b, instance);
+ blobmsg_close_table(&b, instances);
+ ubus_invoke(ctx, service, "add", b.head, NULL, 0, 1000);
+ }
+
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ int ret;
+
+ initd_init();
+
+ if (list_empty(&initds))
+ return 0;
+
+ ctx = ubus_connect(NULL);
+ if (!ctx) {
+ fprintf(stderr, "Failed to connect to ubus\n");
+ return -1;
+ }
+
+ ret = ubus_lookup_id(ctx, "service", &service);
+ if (ret) {
+ fprintf(stderr, "Failed to find service object: %s\n", ubus_strerror(ret));
+ return -1;
+ }
+
+ return init_services();
+}
--- /dev/null
+/*
+ * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 2.1
+ * as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <getopt.h>
+#include <syslog.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <libgen.h>
+#include <glob.h>
+#include <dirent.h>
+
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/mount.h>
+
+#include <asm/byteorder.h>
+
+#include <mtd/mtd-user.h>
+
+#define DEBUG(level, fmt, ...) do { \
+ if (debug >= level) \
+ fprintf(stderr, "%s %s(%d): " fmt, argv0, __func__, __LINE__, ## __VA_ARGS__); \
+ } while (0)
+
+#define LOG(fmt, ...) do { \
+ syslog(LOG_INFO, fmt, ## __VA_ARGS__); \
+ fprintf(stderr, "%s: "fmt, argv0, ## __VA_ARGS__); \
+ } while (0)
+
+#define ERROR(fmt, ...) do { \
+ syslog(LOG_ERR, fmt, ## __VA_ARGS__); \
+ fprintf(stderr, "%s: "fmt, argv0, ## __VA_ARGS__); \
+ } while (0)
+
+enum {
+ FS_NONE,
+ FS_JFFS2,
+ FS_DEADCODE,
+};
+
+static const char *argv0;
+
+/* this is a raw syscall - man 2 pivot_root */
+extern int pivot_root(const char *new_root, const char *put_old);
+
+static int debug = 0;
+
+static void foreachdir(const char *dir, int (*cb)(const char*))
+{
+ char globdir[256];
+ glob_t gl;
+ int j;
+
+ if (dir[strlen(dir) - 1] == '/')
+ snprintf(globdir, 256, "%s*", dir);
+ else
+ snprintf(globdir, 256, "%s/*", dir);
+
+ if (!glob(globdir, GLOB_NOESCAPE | GLOB_MARK | GLOB_ONLYDIR, NULL, &gl))
+ for (j = 0; j < gl.gl_pathc; j++)
+ foreachdir(gl.gl_pathv[j], cb);
+
+ cb(dir);
+}
+
+static char* find_mount_point(char *block, char *fs)
+{
+ FILE *fp = fopen("/proc/mounts", "r");
+ static char line[256];
+ int len = strlen(block);
+ char *point = NULL;
+
+ if(!fp)
+ return NULL;
+
+ while (fgets(line, sizeof(line), fp)) {
+ if (!strncmp(line, block, len)) {
+ char *p = &line[len + 1];
+ char *t = strstr(p, " ");
+
+ if (!t)
+ return NULL;
+
+ *t = '\0';
+ t++;
+
+ if (fs && strncmp(t, fs, strlen(fs))) {
+ ERROR("block is mounted with wrong fs\n");
+ return NULL;
+ }
+ point = p;
+ break;
+ }
+ }
+
+ fclose(fp);
+
+ return point;
+}
+
+static char* find_mtd_index(char *name)
+{
+ FILE *fp = fopen("/proc/mtd", "r");
+ static char line[256];
+ char *index = NULL;
+
+ if(!fp)
+ return index;
+
+ while (!index && fgets(line, sizeof(line), fp)) {
+ if (strstr(line, name)) {
+ char *eol = strstr(line, ":");
+
+ if (!eol)
+ continue;
+
+ *eol = '\0';
+ index = &line[3];
+ DEBUG(1, "found %s -> index:%s\n", name, index);
+ }
+ }
+
+ fclose(fp);
+
+ return index;
+}
+
+static int find_mtd_block(char *name, char *part, int plen)
+{
+ char *index = find_mtd_index(name);
+
+ if (!index)
+ return -1;
+
+ snprintf(part, plen, "/dev/mtdblock%s", index);
+ DEBUG(1, "found %s -> %s\n", name, part);
+
+ return 0;
+}
+
+static int find_mtd_char(char *name, char *part, int plen)
+{
+ char *index = find_mtd_index(name);
+
+ if (!index)
+ return -1;
+
+ snprintf(part, plen, "/dev/mtd%s", index);
+ DEBUG(1, "found %s -> %s\n", name, part);
+
+ return 0;
+}
+
+static int mtd_unlock(char *mtd)
+{
+ struct erase_info_user mtdlock;
+ struct mtd_info_user mtdinfo;
+ int fd = open(mtd, O_RDWR | O_SYNC);
+ int ret = -1;
+
+ DEBUG(1, "%s\n", mtd);
+
+ if (!fd) {
+ ERROR("failed to open %s: %s\n", mtd, strerror(errno));
+ return -1;
+ }
+
+ ret = ioctl(fd, MEMGETINFO, &mtdinfo);
+ if (ret) {
+ ERROR("ioctl(%s, MEMGETINFO) failed: %s\n", mtd, strerror(errno));
+ goto err_out;
+ }
+
+ mtdlock.start = 0;
+ mtdlock.length = mtdinfo.size;
+ ioctl(fd, MEMUNLOCK, &mtdlock);
+
+err_out:
+ close(fd);
+
+ return ret;
+}
+
+static int mtd_erase(const char *mtd)
+{
+ int fd = open(mtd, O_RDWR | O_SYNC);
+ struct mtd_info_user i;
+ struct erase_info_user e;
+ int ret;
+
+ if (!fd) {
+ ERROR("failed to open %s: %s\n", mtd, strerror(errno));
+ return -1;
+ }
+
+ ret = ioctl(fd, MEMGETINFO, &i);
+ if (ret) {
+ ERROR("ioctl(%s, MEMGETINFO) failed: %s\n", mtd, strerror(errno));
+ return -1;
+ }
+
+ e.length = i.erasesize;
+ for (e.start = 0; e.start < i.size; e.start += i.erasesize) {
+ ioctl(fd, MEMUNLOCK, &e);
+ if(ioctl(fd, MEMERASE, &e))
+ ERROR("Failed to erase block on %s at 0x%x\n", mtd, e.start);
+ }
+
+ close(fd);
+ return 0;
+}
+
+static int do_mount_jffs2(void)
+{
+ char rootfs_data[32];
+
+
+ if (mkdir("/tmp/overlay", 0755)) {
+ ERROR("failed to mkdir /tmp/overlay: %s\n", strerror(errno));
+ return -1;
+ }
+
+ if (find_mtd_block("rootfs_data", rootfs_data, sizeof(rootfs_data))) {
+ ERROR("rootfs_data does not exist\n");
+ return -1;
+ }
+
+ if (mount(rootfs_data, "/tmp/overlay", "jffs2", MS_NOATIME, NULL)) {
+ ERROR("failed to mount -t jffs2 %s /tmp/overlay: %s\n", rootfs_data, strerror(errno));
+ return -1;
+ }
+
+ find_mtd_char("rootfs_data", rootfs_data, sizeof(rootfs_data));
+
+ return mtd_unlock(rootfs_data);
+}
+
+static int jffs2_ready(char *mtd)
+{
+ FILE *fp = fopen(mtd, "r");
+ __u32 deadc0de;
+ __u16 jffs2;
+ size_t sz;
+
+ if (!fp) {
+ ERROR("reading %s failed\n", mtd);
+ exit(-1);
+ }
+
+ sz = fread(&deadc0de, sizeof(deadc0de), 1, fp);
+ fclose(fp);
+
+ if (sz != 1) {
+ ERROR("reading %s failed: %s\n", mtd, strerror(errno));
+ exit(-1);
+ }
+
+ deadc0de = __be32_to_cpu(deadc0de);
+ jffs2 = __be16_to_cpu(deadc0de >> 16);
+
+ if (jffs2 == 0x1985) {
+ LOG("jffs2 is ready\n");
+ return FS_JFFS2;
+ }
+
+ if (deadc0de == 0xdeadc0de) {
+ LOG("jffs2 is not ready - marker found\n");
+ return FS_DEADCODE;
+ }
+
+ ERROR("No jffs2 marker was found\n");
+
+ return FS_NONE;
+}
+
+static int check_fs_exists(char *fs)
+{
+ FILE *fp = fopen("/proc/filesystems", "r");
+ static char line[256];
+ int ret = -1;
+
+ DEBUG(2, "%s\n", fs);
+
+ if (!fp) {
+ ERROR("opening /proc/filesystems failed: %s\n", strerror(errno));
+ goto out;
+ }
+
+ while (ret && fgets(line, sizeof(line), fp))
+ if (strstr(line, fs))
+ ret = 0;
+
+ fclose(fp);
+
+out:
+ return ret;
+}
+
+static int mount_move(char *oldroot, char *newroot, char *dir)
+{
+#ifndef MS_MOVE
+#define MS_MOVE (1 << 13)
+#endif
+ struct stat s;
+ char olddir[64];
+ char newdir[64];
+ int ret;
+
+ DEBUG(2, "%s %s\n", oldroot, dir);
+
+ snprintf(olddir, sizeof(olddir), "%s%s", oldroot, dir);
+ snprintf(newdir, sizeof(newdir), "%s%s", newroot, dir);
+
+ if (stat(olddir, &s) || !S_ISDIR(s.st_mode))
+ return -1;
+
+ if (stat(newdir, &s) || !S_ISDIR(s.st_mode))
+ return -1;
+
+ ret = mount(olddir, newdir, NULL, MS_NOATIME | MS_MOVE, NULL);
+
+ if (ret)
+ DEBUG(1, "failed %s %s: %s\n", olddir, newdir, strerror(errno));
+
+ return ret;
+}
+
+static int pivot(char *new, char *old)
+{
+ char pivotdir[64];
+ int ret;
+
+ DEBUG(2, "%s %s\n", new, old);
+
+ if (mount_move("", new, "/proc"))
+ return -1;
+
+ snprintf(pivotdir, sizeof(pivotdir), "%s%s", new, old);
+
+ ret = pivot_root(new, pivotdir);
+
+ if (ret < 0) {
+ ERROR("pivot_root failed %s %s: %s\n", new, pivotdir, strerror(errno));
+ return -1;
+ }
+
+ mount_move(old, "", "/dev");
+ mount_move(old, "", "/tmp");
+ mount_move(old, "", "/sys");
+ mount_move(old, "", "/overlay");
+
+ return 0;
+}
+
+
+static int fopivot(char *rw_root, char *ro_root)
+{
+ char overlay[64], lowerdir[64];
+
+ DEBUG(2, "%s %s\n", rw_root, ro_root);
+
+ if (check_fs_exists("overlay")) {
+ ERROR("BUG: no suitable fs found\n");
+ return -1;
+ }
+
+ snprintf(overlay, sizeof(overlay), "overlayfs:%s", rw_root);
+ snprintf(lowerdir, sizeof(lowerdir), "lowerdir=/,upperdir=%s", rw_root);
+
+ if (mount(overlay, "/mnt", "overlayfs", MS_NOATIME, lowerdir)) {
+ ERROR("mount failed: %s\n", strerror(errno));
+ return -1;
+ }
+
+ return pivot("/mnt", ro_root);
+}
+
+static int ramoverlay(void)
+{
+ DEBUG(2, "\n");
+
+ mkdir("/tmp/root", 0755);
+ mount("tmpfs", "/tmp/root", "tmpfs", MS_NOATIME, "mode=0755");
+
+ return fopivot("/tmp/root", "/rom");
+}
+
+static int switch2jffs(void)
+{
+ char mtd[32];
+
+ if (find_mtd_block("rootfs_data", mtd, sizeof(mtd))) {
+ ERROR("no rootfs_data was found\n");
+ return -1;
+ }
+
+ if (mount(mtd, "/rom/overlay", "jffs2", MS_NOATIME, NULL)) {
+ ERROR("failed - mount -t jffs2 %s /rom/overlay: %s\n", mtd, strerror(errno));
+ return -1;
+ }
+
+ if (mount("none", "/", NULL, MS_NOATIME | MS_REMOUNT, 0)) {
+ ERROR("failed - mount -o remount,ro none: %s\n", strerror(errno));
+ return -1;
+ }
+
+ system("cp -a /tmp/root/* /rom/overlay");
+
+ if (pivot("/rom", "/mnt")) {
+ ERROR("failed - pivot /rom /mnt: %s\n", strerror(errno));
+ return -1;
+ }
+
+ if (mount_move("/mnt", "/tmp/root", "")) {
+ ERROR("failed - mount -o move /mnt /tmp/root %s\n", strerror(errno));
+ return -1;
+ }
+
+ return fopivot("/overlay", "/rom");
+}
+
+static int handle_whiteout(const char *dir)
+{
+ struct stat s;
+ char link[256];
+ ssize_t sz;
+ struct dirent **namelist;
+ int n;
+
+ n = scandir(dir, &namelist, NULL, NULL);
+
+ if (n < 1)
+ return -1;
+
+ while (n--) {
+ char file[256];
+
+ snprintf(file, sizeof(file), "%s%s", dir, namelist[n]->d_name);
+ if (!lstat(file, &s) && S_ISLNK(s.st_mode)) {
+ sz = readlink(file, link, sizeof(link) - 1);
+ if (sz > 0) {
+ char *orig;
+
+ link[sz] = '\0';
+ orig = strstr(&file[1], "/");
+ if (orig && !strcmp(link, "(overlay-whiteout)")) {
+ DEBUG(1, "unlinking %s\n", orig);
+ unlink(orig);
+ }
+ }
+ }
+ free(namelist[n]);
+ }
+ free(namelist);
+
+ return 0;
+}
+
+static int main_switch2jffs(int argc, char **argv)
+{
+ char mtd[32];
+ char *mp;
+ int ret = -1;
+
+ if (check_fs_exists("overlay")) {
+ ERROR("overlayfs not found\n");
+ return ret;
+ }
+
+ find_mtd_block("rootfs_data", mtd, sizeof(mtd));
+ mp = find_mount_point(mtd, NULL);
+ if (mp) {
+ LOG("rootfs_data:%s is already mounted as %s\n", mtd, mp);
+ return -1;
+ }
+
+ if (find_mtd_char("rootfs_data", mtd, sizeof(mtd))) {
+ ERROR("no rootfs_data was found\n");
+ return ret;
+ }
+
+ switch (jffs2_ready(mtd)) {
+ case FS_NONE:
+ ERROR("no jffs2 marker found\n");
+ /* fall through */
+
+ case FS_DEADCODE:
+ ret = switch2jffs();
+ if (!ret) {
+ DEBUG(1, "doing fo cleanup\n");
+ umount2("/tmp/root", MNT_DETACH);
+ foreachdir("/overlay/", handle_whiteout);
+ }
+ break;
+
+ case FS_JFFS2:
+ ret = do_mount_jffs2();
+ if (ret)
+ break;
+ if (mount_move("/tmp", "", "/overlay") || fopivot("/overlay", "/rom")) {
+ ERROR("switching to jffs2 failed\n");
+ ret = -1;
+ }
+ break;
+ }
+
+ return ret;
+}
+
+static int ask_user(int argc, char **argv)
+{
+ if ((argc < 2) || strcmp(argv[1], "-y")) {
+ LOG("This will erase all settings and remove any installed packages. Are you sure? [N/y]\n");
+ if (getchar() != 'y')
+ return -1;
+ }
+ return 0;
+
+}
+
+static int handle_rmdir(const char *dir)
+{
+ struct stat s;
+ struct dirent **namelist;
+ int n;
+
+ n = scandir(dir, &namelist, NULL, NULL);
+
+ if (n < 1)
+ return -1;
+
+ while (n--) {
+ char file[256];
+
+ snprintf(file, sizeof(file), "%s%s", dir, namelist[n]->d_name);
+ if (!lstat(file, &s) && !S_ISDIR(s.st_mode)) {
+ DEBUG(1, "unlinking %s\n", file);
+ unlink(file);
+ }
+ free(namelist[n]);
+ }
+ free(namelist);
+
+ DEBUG(1, "rmdir %s\n", dir);
+ rmdir(dir);
+
+ return 0;
+}
+
+static int main_jffs2reset(int argc, char **argv)
+{
+ char mtd[32];
+ char *mp;
+
+ if (ask_user(argc, argv))
+ return -1;
+
+ if (check_fs_exists("overlay")) {
+ ERROR("overlayfs not found\n");
+ return -1;
+ }
+
+ if (find_mtd_block("rootfs_data", mtd, sizeof(mtd))) {
+ ERROR("no rootfs_data was found\n");
+ return -1;
+ }
+
+ mp = find_mount_point(mtd, "jffs2");
+ if (mp) {
+ LOG("%s is mounted as %s, only ereasing files\n", mtd, mp);
+ foreachdir(mp, handle_rmdir);
+ mount(mp, "/", NULL, MS_REMOUNT, 0);
+ } else {
+ LOG("%s is not mounted, erasing it\n", mtd);
+ find_mtd_char("rootfs_data", mtd, sizeof(mtd));
+ mtd_erase(mtd);
+ }
+
+ return 0;
+}
+
+static int main_jffs2mark(int argc, char **argv)
+{
+ FILE *fp;
+ __u32 deadc0de = __cpu_to_be32(0xdeadc0de);
+ char mtd[32];
+ size_t sz;
+
+ if (ask_user(argc, argv))
+ return -1;
+
+ if (find_mtd_block("rootfs_data", mtd, sizeof(mtd))) {
+ ERROR("no rootfs_data was found\n");
+ return -1;
+ }
+
+ fp = fopen(mtd, "w");
+ LOG("%s - marking with deadc0de\n", mtd);
+ if (!fp) {
+ ERROR("opening %s failed\n", mtd);
+ return -1;
+ }
+
+ sz = fwrite(&deadc0de, sizeof(deadc0de), 1, fp);
+ fclose(fp);
+
+ if (sz != 1) {
+ ERROR("writing %s failed: %s\n", mtd, strerror(errno));
+ return -1;
+ }
+
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ char *mp;
+ char mtd[32];
+
+ argv0 = basename(*argv);
+
+ if (!strcmp(basename(*argv), "switch2jffs"))
+ return main_switch2jffs(argc, argv);
+
+ if (!strcmp(basename(*argv), "jffs2mark"))
+ return main_jffs2mark(argc, argv);
+
+ if (!strcmp(basename(*argv), "jffs2reset"))
+ return main_jffs2reset(argc, argv);
+
+ if (find_mtd_char("rootfs_data", mtd, sizeof(mtd))) {
+ if (!find_mtd_char("rootfs", mtd, sizeof(mtd)))
+ mtd_unlock(mtd);
+ LOG("mounting /dev/root\n");
+ mount("/dev/root", "/", NULL, MS_NOATIME | MS_REMOUNT, 0);
+ } else {
+ switch (jffs2_ready(mtd)) {
+ case FS_NONE:
+ case FS_DEADCODE:
+ return ramoverlay();
+
+ case FS_JFFS2:
+ find_mtd_block("rootfs_data", mtd, sizeof(mtd));
+ mp = find_mount_point(mtd, NULL);
+ if (mp) {
+ LOG("rootfs_data:%s is already mounted as %s\n", mtd, mp);
+ return -1;
+ }
+
+ do_mount_jffs2();
+ DEBUG(1, "switching to jffs2\n");
+ if (mount_move("/tmp", "", "/overlay") || fopivot("/overlay", "/rom")) {
+ ERROR("switching to jffs2 failed - fallback to ramoverlay\n");
+ return ramoverlay();
+ }
+ }
+ }
+
+ return 0;
+}
projects / oweals / ubox.git / commitdiff