From 5e1a84ab74d5e97582427f016f291a8c11e66f99 Mon Sep 17 00:00:00 2001 From: jutteau Date: Fri, 11 May 2007 18:10:19 +0000 Subject: Completion du script de mise à jour de la pc-104 : * Ajout des sources de busybox dans ./conf/busybox/ * Ajout d'un fichier réclamé par les script dans ./conf/busybox.links --- i/pc104/initrd/conf/busybox/modutils/modprobe.c | 896 ++++++++++++++++++++++++ 1 file changed, 896 insertions(+) create mode 100644 i/pc104/initrd/conf/busybox/modutils/modprobe.c (limited to 'i/pc104/initrd/conf/busybox/modutils/modprobe.c') diff --git a/i/pc104/initrd/conf/busybox/modutils/modprobe.c b/i/pc104/initrd/conf/busybox/modutils/modprobe.c new file mode 100644 index 0000000..57e19b4 --- /dev/null +++ b/i/pc104/initrd/conf/busybox/modutils/modprobe.c @@ -0,0 +1,896 @@ +/* vi: set sw=4 ts=4: */ +/* + * Modprobe written from scratch for BusyBox + * + * Copyright (c) 2002 by Robert Griebl, griebl@gmx.de + * Copyright (c) 2003 by Andrew Dennison, andrew.dennison@motec.com.au + * Copyright (c) 2005 by Jim Bauer, jfbauer@nfr.com + * + * Portions Copyright (c) 2005 by Yann E. MORIN, yann.morin.1998@anciens.enib.fr + * + * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. +*/ + +#include "busybox.h" +#include +#include + +struct mod_opt_t { /* one-way list of options to pass to a module */ + char * m_opt_val; + struct mod_opt_t * m_next; +}; + +struct dep_t { /* one-way list of dependency rules */ + /* a dependency rule */ + char * m_name; /* the module name*/ + char * m_path; /* the module file path */ + struct mod_opt_t * m_options; /* the module options */ + + int m_isalias : 1; /* the module is an alias */ + int m_reserved : 15; /* stuffin' */ + + int m_depcnt : 16; /* the number of dependable module(s) */ + char ** m_deparr; /* the list of dependable module(s) */ + + struct dep_t * m_next; /* the next dependency rule */ +}; + +struct mod_list_t { /* two-way list of modules to process */ + /* a module description */ + const char * m_name; + char * m_path; + struct mod_opt_t * m_options; + + struct mod_list_t * m_prev; + struct mod_list_t * m_next; +}; + + +static struct dep_t *depend; + +#define main_options "acdklnqrst:vVC:" +#define INSERT_ALL 1 /* a */ +#define DUMP_CONF_EXIT 2 /* c */ +#define D_OPT_IGNORED 4 /* d */ +#define AUTOCLEAN_FLG 8 /* k */ +#define LIST_ALL 16 /* l */ +#define SHOW_ONLY 32 /* n */ +#define QUIET 64 /* q */ +#define REMOVE_OPT 128 /* r */ +#define DO_SYSLOG 256 /* s */ +#define RESTRICT_DIR 512 /* t */ +#define VERBOSE 1024 /* v */ +#define VERSION_ONLY 2048 /* V */ +#define CONFIG_FILE 4096 /* C */ + +#define autoclean (main_opts & AUTOCLEAN_FLG) +#define show_only (main_opts & SHOW_ONLY) +#define quiet (main_opts & QUIET) +#define remove_opt (main_opts & REMOVE_OPT) +#define do_syslog (main_opts & DO_SYSLOG) +#define verbose (main_opts & VERBOSE) + +static int main_opts; + +static int parse_tag_value(char *buffer, char **ptag, char **pvalue) +{ + char *tag, *value; + + buffer = skip_whitespace(buffer); + tag = value = buffer; + while (!isspace(*value)) + if (!*value) return 0; + else value++; + *value++ = 0; + value = skip_whitespace(value); + if (!*value) return 0; + + *ptag = tag; + *pvalue = value; + + return 1; +} + +/* + * This function appends an option to a list + */ +static struct mod_opt_t *append_option(struct mod_opt_t *opt_list, char *opt) +{ + struct mod_opt_t *ol = opt_list; + + if (ol) { + while (ol->m_next) { + ol = ol->m_next; + } + ol->m_next = xmalloc(sizeof(struct mod_opt_t)); + ol = ol->m_next; + } else { + ol = opt_list = xmalloc(sizeof(struct mod_opt_t)); + } + + ol->m_opt_val = xstrdup(opt); + ol->m_next = NULL; + + return opt_list; +} + +#if ENABLE_FEATURE_MODPROBE_MULTIPLE_OPTIONS +/* static char* parse_command_string(char* src, char **dst); + * src: pointer to string containing argument + * dst: pointer to where to store the parsed argument + * return value: the pointer to the first char after the parsed argument, + * NULL if there was no argument parsed (only trailing spaces). + * Note that memory is allocated with xstrdup when a new argument was + * parsed. Don't forget to free it! + */ +#define ARG_EMPTY 0x00 +#define ARG_IN_DQUOTES 0x01 +#define ARG_IN_SQUOTES 0x02 +static char *parse_command_string(char *src, char **dst) +{ + int opt_status = ARG_EMPTY; + char* tmp_str; + + /* Dumb you, I have nothing to do... */ + if (src == NULL) return src; + + /* Skip leading spaces */ + while (*src == ' ') { + src++; + } + /* Is the end of string reached? */ + if (*src == '\0') { + return NULL; + } + /* Reached the start of an argument + * By the way, we duplicate a little too much + * here but what is too much is freed later. */ + *dst = tmp_str = xstrdup(src); + /* Get to the end of that argument */ + while (*tmp_str != '\0' + && (*tmp_str != ' ' || (opt_status & (ARG_IN_DQUOTES | ARG_IN_SQUOTES))) + ) { + switch (*tmp_str) { + case '\'': + if (opt_status & ARG_IN_DQUOTES) { + /* Already in double quotes, keep current char as is */ + } else { + /* shift left 1 char, until end of string: get rid of the opening/closing quotes */ + memmove(tmp_str, tmp_str + 1, strlen(tmp_str)); + /* mark me: we enter or leave single quotes */ + opt_status ^= ARG_IN_SQUOTES; + /* Back one char, as we need to re-scan the new char there. */ + tmp_str--; + } + break; + case '"': + if (opt_status & ARG_IN_SQUOTES) { + /* Already in single quotes, keep current char as is */ + } else { + /* shift left 1 char, until end of string: get rid of the opening/closing quotes */ + memmove(tmp_str, tmp_str + 1, strlen(tmp_str)); + /* mark me: we enter or leave double quotes */ + opt_status ^= ARG_IN_DQUOTES; + /* Back one char, as we need to re-scan the new char there. */ + tmp_str--; + } + break; + case '\\': + if (opt_status & ARG_IN_SQUOTES) { + /* Between single quotes: keep as is. */ + } else { + switch (*(tmp_str+1)) { + case 'a': + case 'b': + case 't': + case 'n': + case 'v': + case 'f': + case 'r': + case '0': + /* We escaped a special character. For now, keep + * both the back-slash and the following char. */ + tmp_str++; src++; + break; + default: + /* We escaped a space or a single or double quote, + * or a back-slash, or a non-escapable char. Remove + * the '\' and keep the new current char as is. */ + memmove(tmp_str, tmp_str + 1, strlen(tmp_str)); + break; + } + } + break; + /* Any other char that is special shall appear here. + * Example: $ starts a variable + case '$': + do_variable_expansion(); + break; + * */ + default: + /* any other char is kept as is. */ + break; + } + tmp_str++; /* Go to next char */ + src++; /* Go to next char to find the end of the argument. */ + } + /* End of string, but still no ending quote */ + if (opt_status & (ARG_IN_DQUOTES | ARG_IN_SQUOTES)) { + bb_error_msg_and_die("unterminated (single or double) quote in options list: %s", src); + } + *tmp_str++ = '\0'; + *dst = xrealloc(*dst, (tmp_str - *dst)); + return src; +} +#else +#define parse_command_string(src, dst) (0) +#endif /* ENABLE_FEATURE_MODPROBE_MULTIPLE_OPTIONS */ + +/* + * This function reads aliases and default module options from a configuration file + * (/etc/modprobe.conf syntax). It supports includes (only files, no directories). + */ +static void include_conf(struct dep_t **first, struct dep_t **current, char *buffer, int buflen, int fd) +{ + int continuation_line = 0; + + // alias parsing is not 100% correct (no correct handling of continuation lines within an alias) ! + + while (reads(fd, buffer, buflen)) { + int l; + char *p; + + p = strchr(buffer, '#'); + if (p) + *p = 0; + + l = strlen(buffer); + + while (l && isspace(buffer[l-1])) { + buffer[l-1] = 0; + l--; + } + + if (l == 0) { + continuation_line = 0; + continue; + } + + if (!continuation_line) { + if ((strncmp(buffer, "alias", 5) == 0) && isspace(buffer[5])) { + char *alias, *mod; + + if (parse_tag_value(buffer + 6, &alias, &mod)) { + /* handle alias as a module dependent on the aliased module */ + if (!*current) { + (*first) = (*current) = xzalloc(sizeof(struct dep_t)); + } else { + (*current)->m_next = xzalloc(sizeof(struct dep_t)); + (*current) = (*current)->m_next; + } + (*current)->m_name = xstrdup(alias); + (*current)->m_isalias = 1; + + if ((strcmp(mod, "off") == 0) || (strcmp(mod, "null") == 0)) { + (*current)->m_depcnt = 0; + (*current)->m_deparr = 0; + } else { + (*current)->m_depcnt = 1; + (*current)->m_deparr = xmalloc(1 * sizeof(char *)); + (*current)->m_deparr[0] = xstrdup(mod); + } + (*current)->m_next = 0; + } + } else if ((strncmp(buffer, "options", 7) == 0) && isspace(buffer[7])) { + char *mod, *opt; + + /* split the line in the module/alias name, and options */ + if (parse_tag_value(buffer + 8, &mod, &opt)) { + struct dep_t *dt; + + /* find the corresponding module */ + for (dt = *first; dt; dt = dt->m_next) { + if (strcmp(dt->m_name, mod) == 0) + break; + } + if (dt) { + if (ENABLE_FEATURE_MODPROBE_MULTIPLE_OPTIONS) { + char* new_opt = NULL; + while ((opt = parse_command_string(opt, &new_opt))) { + dt->m_options = append_option(dt->m_options, new_opt); + } + } else { + dt->m_options = append_option(dt->m_options, opt); + } + } + } + } else if ((strncmp(buffer, "include", 7) == 0) && isspace(buffer[7])) { + int fdi; char *filename; + + filename = skip_whitespace(buffer + 8); + + if ((fdi = open(filename, O_RDONLY)) >= 0) { + include_conf(first, current, buffer, buflen, fdi); + close(fdi); + } + } + } + } +} + +/* + * This function builds a list of dependency rules from /lib/modules/`uname -r`/modules.dep. + * It then fills every modules and aliases with their default options, found by parsing + * modprobe.conf (or modules.conf, or conf.modules). + */ +static struct dep_t *build_dep(void) +{ + int fd; + struct utsname un; + struct dep_t *first = 0; + struct dep_t *current = 0; + char buffer[2048]; + char *filename; + int continuation_line = 0; + int k_version; + + if (uname(&un)) + bb_error_msg_and_die("can't determine kernel version"); + + k_version = 0; + if (un.release[0] == '2') { + k_version = un.release[2] - '0'; + } + + filename = xasprintf("/lib/modules/%s/modules.dep", un.release); + fd = open(filename, O_RDONLY); + if (ENABLE_FEATURE_CLEAN_UP) + free(filename); + if (fd < 0) { + /* Ok, that didn't work. Fall back to looking in /lib/modules */ + fd = open("/lib/modules/modules.dep", O_RDONLY); + if (fd < 0) { + return 0; + } + } + + while (reads(fd, buffer, sizeof(buffer))) { + int l = strlen(buffer); + char *p = 0; + + while (l > 0 && isspace(buffer[l-1])) { + buffer[l-1] = 0; + l--; + } + + if (l == 0) { + continuation_line = 0; + continue; + } + + /* Is this a new module dep description? */ + if (!continuation_line) { + /* find the dep beginning */ + char *col = strchr(buffer, ':'); + char *dot = col; + + if (col) { + /* This line is a dep description */ + char *mods; + char *modpath; + char *mod; + + /* Find the beginning of the module file name */ + *col = 0; + mods = strrchr(buffer, '/'); + + if (!mods) + mods = buffer; /* no path for this module */ + else + mods++; /* there was a path for this module... */ + + /* find the path of the module */ + modpath = strchr(buffer, '/'); /* ... and this is the path */ + if (!modpath) + modpath = buffer; /* module with no path */ + /* find the end of the module name in the file name */ + if (ENABLE_FEATURE_2_6_MODULES && + (k_version > 4) && (*(col-3) == '.') && + (*(col-2) == 'k') && (*(col-1) == 'o')) + dot = col - 3; + else + if ((*(col-2) == '.') && (*(col-1) == 'o')) + dot = col - 2; + + mod = xstrndup(mods, dot - mods); + + /* enqueue new module */ + if (!current) { + first = current = xmalloc(sizeof(struct dep_t)); + } else { + current->m_next = xmalloc(sizeof(struct dep_t)); + current = current->m_next; + } + current->m_name = mod; + current->m_path = xstrdup(modpath); + current->m_options = NULL; + current->m_isalias = 0; + current->m_depcnt = 0; + current->m_deparr = 0; + current->m_next = 0; + + p = col + 1; + } else + /* this line is not a dep description */ + p = 0; + } else + /* It's a dep description continuation */ + p = buffer; + + while (p && *p && isblank(*p)) + p++; + + /* p points to the first dependable module; if NULL, no dependable module */ + if (p && *p) { + char *end = &buffer[l-1]; + char *deps; + char *dep; + char *next; + int ext = 0; + + while (isblank(*end) || (*end == '\\')) + end--; + + do { + /* search the end of the dependency */ + next = strchr(p, ' '); + if (next) { + *next = 0; + next--; + } else + next = end; + + /* find the beginning of the module file name */ + deps = strrchr(p, '/'); + + if (!deps || (deps < p)) { + deps = p; + + while (isblank(*deps)) + deps++; + } else + deps++; + + /* find the end of the module name in the file name */ + if (ENABLE_FEATURE_2_6_MODULES + && (k_version > 4) && (*(next-2) == '.') + && (*(next-1) == 'k') && (*next == 'o')) + ext = 3; + else + if ((*(next-1) == '.') && (*next == 'o')) + ext = 2; + + /* Cope with blank lines */ + if ((next-deps-ext+1) <= 0) + continue; + dep = xstrndup(deps, next - deps - ext + 1); + + /* Add the new dependable module name */ + current->m_depcnt++; + current->m_deparr = xrealloc(current->m_deparr, + sizeof(char *) * current->m_depcnt); + current->m_deparr[current->m_depcnt - 1] = dep; + + p = next + 2; + } while (next < end); + } + + /* is there other dependable module(s) ? */ + if (buffer[l-1] == '\\') + continuation_line = 1; + else + continuation_line = 0; + } + close(fd); + + /* + * First parse system-specific options and aliases + * as they take precedence over the kernel ones. + * >=2.6: we only care about modprobe.conf + * <=2.4: we care about modules.conf and conf.modules + */ + if (ENABLE_FEATURE_2_6_MODULES + && (fd = open("/etc/modprobe.conf", O_RDONLY)) < 0) + if (ENABLE_FEATURE_2_4_MODULES + && (fd = open("/etc/modules.conf", O_RDONLY)) < 0) + if (ENABLE_FEATURE_2_4_MODULES) + fd = open("/etc/conf.modules", O_RDONLY); + + if (fd >= 0) { + include_conf(&first, ¤t, buffer, sizeof(buffer), fd); + close(fd); + } + + /* Only 2.6 has a modules.alias file */ + if (ENABLE_FEATURE_2_6_MODULES) { + /* Parse kernel-declared aliases */ + filename = xasprintf("/lib/modules/%s/modules.alias", un.release); + fd = open(filename, O_RDONLY); + if (fd < 0) { + /* Ok, that didn't work. Fall back to looking in /lib/modules */ + fd = open("/lib/modules/modules.alias", O_RDONLY); + } + if (ENABLE_FEATURE_CLEAN_UP) + free(filename); + + if (fd >= 0) { + include_conf(&first, ¤t, buffer, sizeof(buffer), fd); + close(fd); + } + } + + return first; +} + +/* return 1 = loaded, 0 = not loaded, -1 = can't tell */ +static int already_loaded(const char *name) +{ + int fd, ret = 0; + char buffer[4096]; + + fd = open("/proc/modules", O_RDONLY); + if (fd < 0) + return -1; + + while (reads(fd, buffer, sizeof(buffer))) { + char *p; + + p = strchr (buffer, ' '); + if (p) { + const char *n; + + // Truncate buffer at first space and check for matches, with + // the idiosyncrasy that _ and - are interchangeable because the + // 2.6 kernel does weird things. + + *p = 0; + for (p = buffer, n = name; ; p++, n++) { + if (*p != *n) { + if ((*p == '_' || *p == '-') && (*n == '_' || *n == '-')) + continue; + break; + } + // If we made it to the end, that's a match. + if (!*p) { + ret = 1; + goto done; + } + } + } + } +done: + close (fd); + return ret; +} + +static int mod_process(const struct mod_list_t *list, int do_insert) +{ + int rc = 0; + char **argv = NULL; + struct mod_opt_t *opts; + int argc_malloc; /* never used when CONFIG_FEATURE_CLEAN_UP not defined */ + int argc; + + while (list) { + argc = 0; + if (ENABLE_FEATURE_CLEAN_UP) + argc_malloc = 0; + /* If CONFIG_FEATURE_CLEAN_UP is not defined, then we leak memory + * each time we allocate memory for argv. + * But it is (quite) small amounts of memory that leak each + * time a module is loaded, and it is reclaimed when modprobe + * exits anyway (even when standalone shell?). + * This could become a problem when loading a module with LOTS of + * dependencies, with LOTS of options for each dependencies, with + * very little memory on the target... But in that case, the module + * would not load because there is no more memory, so there's no + * problem. */ + /* enough for minimal insmod (5 args + NULL) or rmmod (3 args + NULL) */ + argv = xmalloc(6 * sizeof(char*)); + if (do_insert) { + if (already_loaded(list->m_name) != 1) { + argv[argc++] = (char*)"insmod"; + if (ENABLE_FEATURE_2_4_MODULES) { + if (do_syslog) + argv[argc++] = (char*)"-s"; + if (autoclean) + argv[argc++] = (char*)"-k"; + if (quiet) + argv[argc++] = (char*)"-q"; + else if (verbose) /* verbose and quiet are mutually exclusive */ + argv[argc++] = (char*)"-v"; + } + argv[argc++] = list->m_path; + if (ENABLE_FEATURE_CLEAN_UP) + argc_malloc = argc; + opts = list->m_options; + while (opts) { + /* Add one more option */ + argc++; + argv = xrealloc(argv,(argc + 1)* sizeof(char*)); + argv[argc-1] = opts->m_opt_val; + opts = opts->m_next; + } + } + } else { + /* modutils uses short name for removal */ + if (already_loaded(list->m_name) != 0) { + argv[argc++] = (char*)"rmmod"; + if (do_syslog) + argv[argc++] = (char*)"-s"; + argv[argc++] = (char*)list->m_name; + if (ENABLE_FEATURE_CLEAN_UP) + argc_malloc = argc; + } + } + argv[argc] = NULL; + + if (argc) { + if (verbose) { + printf("%s module %s\n", do_insert?"Loading":"Unloading", list->m_name); + } + if (!show_only) { + int rc2 = wait4pid(spawn(argv)); + + if (do_insert) { + rc = rc2; /* only last module matters */ + } else if (!rc2) { + rc = 0; /* success if remove any mod */ + } + } + if (ENABLE_FEATURE_CLEAN_UP) { + /* the last value in the array has index == argc, but + * it is the terminating NULL, so we must not free it. */ + while (argc_malloc < argc) { + free(argv[argc_malloc++]); + } + } + } + if (ENABLE_FEATURE_CLEAN_UP) { + free(argv); + argv = NULL; + } + list = do_insert ? list->m_prev : list->m_next; + } + return (show_only) ? 0 : rc; +} + +/* + * Check the matching between a pattern and a module name. + * We need this as *_* is equivalent to *-*, even in pattern matching. + */ +static int check_pattern(const char* pat_src, const char* mod_src) { + int ret; + + if (ENABLE_FEATURE_MODPROBE_FANCY_ALIAS) { + char* pat; + char* mod; + char* p; + + pat = xstrdup (pat_src); + mod = xstrdup (mod_src); + + for (p = pat; (p = strchr(p, '-')); *p++ = '_'); + for (p = mod; (p = strchr(p, '-')); *p++ = '_'); + + ret = fnmatch(pat, mod, 0); + + if (ENABLE_FEATURE_CLEAN_UP) { + free (pat); + free (mod); + } + + return ret; + } else { + return fnmatch(pat_src, mod_src, 0); + } +} + +/* + * Builds the dependency list (aka stack) of a module. + * head: the highest module in the stack (last to insmod, first to rmmod) + * tail: the lowest module in the stack (first to insmod, last to rmmod) + */ +static void check_dep(char *mod, struct mod_list_t **head, struct mod_list_t **tail) +{ + struct mod_list_t *find; + struct dep_t *dt; + struct mod_opt_t *opt = 0; + char *path = 0; + + /* Search for the given module name amongst all dependency rules. + * The module name in a dependency rule can be a shell pattern, + * so try to match the given module name against such a pattern. + * Of course if the name in the dependency rule is a plain string, + * then we consider it a pattern, and matching will still work. */ + for (dt = depend; dt; dt = dt->m_next) { + if (check_pattern(dt->m_name, mod) == 0) { + break; + } + } + + if (!dt) { + bb_error_msg("module %s not found", mod); + return; + } + + // resolve alias names + while (dt->m_isalias) { + if (dt->m_depcnt == 1) { + struct dep_t *adt; + + for (adt = depend; adt; adt = adt->m_next) { + if (check_pattern(adt->m_name, dt->m_deparr[0]) == 0) + break; + } + if (adt) { + /* This is the module we are aliased to */ + struct mod_opt_t *opts = dt->m_options; + /* Option of the alias are appended to the options of the module */ + while (opts) { + adt->m_options = append_option(adt->m_options, opts->m_opt_val); + opts = opts->m_next; + } + dt = adt; + } else { + bb_error_msg("module %s not found", mod); + return; + } + } else { + bb_error_msg("bad alias %s", dt->m_name); + return; + } + } + + mod = dt->m_name; + path = dt->m_path; + opt = dt->m_options; + + // search for duplicates + for (find = *head; find; find = find->m_next) { + if (!strcmp(mod, find->m_name)) { + // found ->dequeue it + + if (find->m_prev) + find->m_prev->m_next = find->m_next; + else + *head = find->m_next; + + if (find->m_next) + find->m_next->m_prev = find->m_prev; + else + *tail = find->m_prev; + + break; // there can be only one duplicate + } + } + + if (!find) { // did not find a duplicate + find = xmalloc(sizeof(struct mod_list_t)); + find->m_name = mod; + find->m_path = path; + find->m_options = opt; + } + + // enqueue at tail + if (*tail) + (*tail)->m_next = find; + find->m_prev = *tail; + find->m_next = 0; + + if (!*head) + *head = find; + *tail = find; + + if (dt) { + int i; + + /* Add all dependable module for that new module */ + for (i = 0; i < dt->m_depcnt; i++) + check_dep(dt->m_deparr[i], head, tail); + } +} + +static int mod_insert(char *mod, int argc, char **argv) +{ + struct mod_list_t *tail = NULL; + struct mod_list_t *head = NULL; + int rc; + + // get dep list for module mod + check_dep(mod, &head, &tail); + + rc = 1; + if (head && tail) { + if (argc) { + int i; + // append module args + for (i = 0; i < argc; i++) + head->m_options = append_option(head->m_options, argv[i]); + } + + // process tail ---> head + rc = mod_process(tail, 1); + if (rc) { + /* + * In case of using udev, multiple instances of modprobe can be + * spawned to load the same module (think of two same usb devices, + * for example; or cold-plugging at boot time). Thus we shouldn't + * fail if the module was loaded, and not by us. + */ + if (already_loaded(mod)) + rc = 0; + } + } + return rc; +} + +static int mod_remove(char *mod) +{ + int rc; + static const struct mod_list_t rm_a_dummy = { "-a", NULL, NULL, NULL, NULL }; + + struct mod_list_t *head = NULL; + struct mod_list_t *tail = NULL; + + if (mod) + check_dep(mod, &head, &tail); + else // autoclean + head = tail = (struct mod_list_t*) &rm_a_dummy; + + rc = 1; + if (head && tail) + rc = mod_process(head, 0); // process head ---> tail + return rc; +} + +int modprobe_main(int argc, char** argv); +int modprobe_main(int argc, char** argv) +{ + int rc = EXIT_SUCCESS; + char *unused; + + opt_complementary = "?V-:q-v:v-q"; + main_opts = getopt32(argc, argv, "acdklnqrst:vVC:", + &unused, &unused); + if (main_opts & (DUMP_CONF_EXIT | LIST_ALL)) + return EXIT_SUCCESS; + if (main_opts & (RESTRICT_DIR | CONFIG_FILE)) + bb_error_msg_and_die("-t and -C not supported"); + + depend = build_dep(); + + if (!depend) + bb_error_msg_and_die("cannot parse modules.dep"); + + if (remove_opt) { + do { + if (mod_remove(optind < argc ? + argv[optind] : NULL)) { + bb_error_msg("failed to remove module %s", + argv[optind]); + rc = EXIT_FAILURE; + } + } while (++optind < argc); + } else { + if (optind >= argc) + bb_error_msg_and_die("no module or pattern provided"); + + if (mod_insert(argv[optind], argc - optind - 1, argv + optind + 1)) + bb_error_msg_and_die("failed to load module %s", argv[optind]); + } + + /* Here would be a good place to free up memory allocated during the dependencies build. */ + + return rc; +} -- cgit v1.2.3