+++ /dev/null
-/*
- * libkmod - interface to kernel module operations
- *
- * Copyright (C) 2011 ProFUSION embedded systems
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation version 2.1.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <stdarg.h>
-#include <unistd.h>
-#include <errno.h>
-#include <string.h>
-#include <ctype.h>
-#include <inttypes.h>
-
-#include "libkmod.h"
-#include "libkmod-private.h"
-
-/**
- * SECTION:libkmod-loaded
- * @short_description: currently loaded modules
- *
- * Information about currently loaded modules, as reported by Linux kernel.
- * These information are not cached by libkmod and are always read from /sys
- * and /proc/modules.
- */
-
-/**
- * kmod_module_new_from_loaded:
- * @ctx: kmod library context
- * @list: where to save the list of loaded modules
- *
- * Get a list of all modules currently loaded in kernel. It uses /proc/modules
- * to get the names of loaded modules and to create kmod_module objects by
- * calling kmod_module_new_from_name() in each of them. They are put are put
- * in @list in no particular order.
- *
- * All the returned modules get their refcount incremented (or are created if
- * they do not exist yet). After using the list, release the resources by
- * calling kmod_module_unref_list().
- *
- * Returns: 0 on success or < 0 on error.
- */
-KMOD_EXPORT int kmod_module_new_from_loaded(struct kmod_ctx *ctx,
- struct kmod_list **list)
-{
- struct kmod_list *l = NULL;
- FILE *fp;
- char line[4096];
-
- if (ctx == NULL || list == NULL)
- return -ENOENT;
-
- fp = fopen("/proc/modules", "r");
- if (fp == NULL) {
- int err = -errno;
- ERR(ctx, "could not open /proc/modules: %s\n", strerror(errno));
- return err;
- }
-
- while (fgets(line, sizeof(line), fp)) {
- struct kmod_module *m;
- struct kmod_list *node;
- int err;
- char *saveptr, *name = strtok_r(line, " \t", &saveptr);
-
- err = kmod_module_new_from_name(ctx, name, &m);
- if (err < 0) {
- ERR(ctx, "could not get module from name '%s': %s\n",
- name, strerror(-err));
- continue;
- }
-
- node = kmod_list_append(l, m);
- if (node)
- l = node;
- else {
- ERR(ctx, "out of memory\n");
- kmod_module_unref(m);
- }
- }
-
- fclose(fp);
- *list = l;
-
- return 0;
-}
return err;
}
+KMOD_EXPORT const char *kmod_module_get_options(const struct kmod_module *mod)
+{
+ if (mod == NULL)
+ return NULL;
+
+ if (!mod->init.options) {
+ /* lazy init */
+ struct kmod_module *m = (struct kmod_module *)mod;
+ const struct kmod_list *l, *ctx_options;
+ char *opts = NULL;
+ size_t optslen = 0;
+
+ ctx_options = kmod_get_options(mod->ctx);
+
+ kmod_list_foreach(l, ctx_options) {
+ const char *modname = kmod_option_get_modname(l);
+ const char *str;
+ size_t len;
+ void *tmp;
+
+ if (strcmp(modname, mod->name) != 0)
+ continue;
+
+ str = kmod_option_get_options(l);
+ len = strlen(str);
+ if (len < 1)
+ continue;
+
+ tmp = realloc(opts, optslen + len + 2);
+ if (tmp == NULL) {
+ free(opts);
+ goto failed;
+ }
+
+ opts = tmp;
+
+ if (optslen > 0) {
+ opts[optslen] = ' ';
+ optslen++;
+ }
+
+ memcpy(opts + optslen, str, len);
+ optslen += len;
+ opts[optslen] = '\0';
+ }
+
+ m->init.options = true;
+ m->options = opts;
+ }
+
+ return mod->options;
+
+failed:
+ ERR(mod->ctx, "out of memory\n");
+ return NULL;
+}
+
+KMOD_EXPORT const char *kmod_module_get_install_commands(const struct kmod_module *mod)
+{
+ if (mod == NULL)
+ return NULL;
+
+ if (!mod->init.install_commands) {
+ /* lazy init */
+ struct kmod_module *m = (struct kmod_module *)mod;
+ const struct kmod_list *l, *ctx_install_commands;
+ char *cmds = NULL;
+ size_t cmdslen = 0;
+
+ ctx_install_commands = kmod_get_install_commands(mod->ctx);
+
+ kmod_list_foreach(l, ctx_install_commands) {
+ const char *modname = kmod_command_get_modname(l);
+ const char *str;
+ size_t len;
+ void *tmp;
+
+ if (strcmp(modname, mod->name) != 0)
+ continue;
+
+ str = kmod_command_get_command(l);
+ len = strlen(str);
+ if (len < 1)
+ continue;
+
+ tmp = realloc(cmds, cmdslen + len + 2);
+ if (tmp == NULL) {
+ free(cmds);
+ goto failed;
+ }
+
+ cmds = tmp;
+
+ if (cmdslen > 0) {
+ cmds[cmdslen] = ';';
+ cmdslen++;
+ }
+
+ memcpy(cmds + cmdslen, str, len);
+ cmdslen += len;
+ cmds[cmdslen] = '\0';
+ }
+
+ m->init.install_commands = true;
+ m->install_commands = cmds;
+ }
+
+ return mod->install_commands;
+
+failed:
+ ERR(mod->ctx, "out of memory\n");
+ return NULL;
+}
+
+KMOD_EXPORT const char *kmod_module_get_remove_commands(const struct kmod_module *mod)
+{
+ if (mod == NULL)
+ return NULL;
+
+ if (!mod->init.remove_commands) {
+ /* lazy init */
+ struct kmod_module *m = (struct kmod_module *)mod;
+ const struct kmod_list *l, *ctx_remove_commands;
+ char *cmds = NULL;
+ size_t cmdslen = 0;
+
+ ctx_remove_commands = kmod_get_remove_commands(mod->ctx);
+
+ kmod_list_foreach(l, ctx_remove_commands) {
+ const char *modname = kmod_command_get_modname(l);
+ const char *str;
+ size_t len;
+ void *tmp;
+
+ if (strcmp(modname, mod->name) != 0)
+ continue;
+
+ str = kmod_command_get_command(l);
+ len = strlen(str);
+ if (len < 1)
+ continue;
+
+ tmp = realloc(cmds, cmdslen + len + 2);
+ if (tmp == NULL) {
+ free(cmds);
+ goto failed;
+ }
+
+ cmds = tmp;
+
+ if (cmdslen > 0) {
+ cmds[cmdslen] = ';';
+ cmdslen++;
+ }
+
+ memcpy(cmds + cmdslen, str, len);
+ cmdslen += len;
+ cmds[cmdslen] = '\0';
+ }
+
+ m->init.remove_commands = true;
+ m->remove_commands = cmds;
+ }
+
+ return mod->remove_commands;
+
+failed:
+ ERR(mod->ctx, "out of memory\n");
+ return NULL;
+}
+
+/**
+ * SECTION:libkmod-loaded
+ * @short_description: currently loaded modules
+ *
+ * Information about currently loaded modules, as reported by Linux kernel.
+ * These information are not cached by libkmod and are always read from /sys
+ * and /proc/modules.
+ */
+
+/**
+ * kmod_module_new_from_loaded:
+ * @ctx: kmod library context
+ * @list: where to save the list of loaded modules
+ *
+ * Get a list of all modules currently loaded in kernel. It uses /proc/modules
+ * to get the names of loaded modules and to create kmod_module objects by
+ * calling kmod_module_new_from_name() in each of them. They are put are put
+ * in @list in no particular order.
+ *
+ * All the returned modules get their refcount incremented (or are created if
+ * they do not exist yet). After using the list, release the resources by
+ * calling kmod_module_unref_list().
+ *
+ * Returns: 0 on success or < 0 on error.
+ */
+KMOD_EXPORT int kmod_module_new_from_loaded(struct kmod_ctx *ctx,
+ struct kmod_list **list)
+{
+ struct kmod_list *l = NULL;
+ FILE *fp;
+ char line[4096];
+
+ if (ctx == NULL || list == NULL)
+ return -ENOENT;
+
+ fp = fopen("/proc/modules", "r");
+ if (fp == NULL) {
+ int err = -errno;
+ ERR(ctx, "could not open /proc/modules: %s\n", strerror(errno));
+ return err;
+ }
+
+ while (fgets(line, sizeof(line), fp)) {
+ struct kmod_module *m;
+ struct kmod_list *node;
+ int err;
+ char *saveptr, *name = strtok_r(line, " \t", &saveptr);
+
+ err = kmod_module_new_from_name(ctx, name, &m);
+ if (err < 0) {
+ ERR(ctx, "could not get module from name '%s': %s\n",
+ name, strerror(-err));
+ continue;
+ }
+
+ node = kmod_list_append(l, m);
+ if (node)
+ l = node;
+ else {
+ ERR(ctx, "out of memory\n");
+ kmod_module_unref(m);
+ }
+ }
+
+ fclose(fp);
+ *list = l;
+
+ return 0;
+}
+
KMOD_EXPORT const char *kmod_module_initstate_str(enum kmod_module_initstate state)
{
switch (state) {
list = kmod_list_remove(list);
}
}
-
-KMOD_EXPORT const char *kmod_module_get_options(const struct kmod_module *mod)
-{
- if (mod == NULL)
- return NULL;
-
- if (!mod->init.options) {
- /* lazy init */
- struct kmod_module *m = (struct kmod_module *)mod;
- const struct kmod_list *l, *ctx_options;
- char *opts = NULL;
- size_t optslen = 0;
-
- ctx_options = kmod_get_options(mod->ctx);
-
- kmod_list_foreach(l, ctx_options) {
- const char *modname = kmod_option_get_modname(l);
- const char *str;
- size_t len;
- void *tmp;
-
- if (strcmp(modname, mod->name) != 0)
- continue;
-
- str = kmod_option_get_options(l);
- len = strlen(str);
- if (len < 1)
- continue;
-
- tmp = realloc(opts, optslen + len + 2);
- if (tmp == NULL) {
- free(opts);
- goto failed;
- }
-
- opts = tmp;
-
- if (optslen > 0) {
- opts[optslen] = ' ';
- optslen++;
- }
-
- memcpy(opts + optslen, str, len);
- optslen += len;
- opts[optslen] = '\0';
- }
-
- m->init.options = true;
- m->options = opts;
- }
-
- return mod->options;
-
-failed:
- ERR(mod->ctx, "out of memory\n");
- return NULL;
-}
-
-KMOD_EXPORT const char *kmod_module_get_install_commands(const struct kmod_module *mod)
-{
- if (mod == NULL)
- return NULL;
-
- if (!mod->init.install_commands) {
- /* lazy init */
- struct kmod_module *m = (struct kmod_module *)mod;
- const struct kmod_list *l, *ctx_install_commands;
- char *cmds = NULL;
- size_t cmdslen = 0;
-
- ctx_install_commands = kmod_get_install_commands(mod->ctx);
-
- kmod_list_foreach(l, ctx_install_commands) {
- const char *modname = kmod_command_get_modname(l);
- const char *str;
- size_t len;
- void *tmp;
-
- if (strcmp(modname, mod->name) != 0)
- continue;
-
- str = kmod_command_get_command(l);
- len = strlen(str);
- if (len < 1)
- continue;
-
- tmp = realloc(cmds, cmdslen + len + 2);
- if (tmp == NULL) {
- free(cmds);
- goto failed;
- }
-
- cmds = tmp;
-
- if (cmdslen > 0) {
- cmds[cmdslen] = ';';
- cmdslen++;
- }
-
- memcpy(cmds + cmdslen, str, len);
- cmdslen += len;
- cmds[cmdslen] = '\0';
- }
-
- m->init.install_commands = true;
- m->install_commands = cmds;
- }
-
- return mod->install_commands;
-
-failed:
- ERR(mod->ctx, "out of memory\n");
- return NULL;
-}
-
-KMOD_EXPORT const char *kmod_module_get_remove_commands(const struct kmod_module *mod)
-{
- if (mod == NULL)
- return NULL;
-
- if (!mod->init.remove_commands) {
- /* lazy init */
- struct kmod_module *m = (struct kmod_module *)mod;
- const struct kmod_list *l, *ctx_remove_commands;
- char *cmds = NULL;
- size_t cmdslen = 0;
-
- ctx_remove_commands = kmod_get_remove_commands(mod->ctx);
-
- kmod_list_foreach(l, ctx_remove_commands) {
- const char *modname = kmod_command_get_modname(l);
- const char *str;
- size_t len;
- void *tmp;
-
- if (strcmp(modname, mod->name) != 0)
- continue;
-
- str = kmod_command_get_command(l);
- len = strlen(str);
- if (len < 1)
- continue;
-
- tmp = realloc(cmds, cmdslen + len + 2);
- if (tmp == NULL) {
- free(cmds);
- goto failed;
- }
-
- cmds = tmp;
-
- if (cmdslen > 0) {
- cmds[cmdslen] = ';';
- cmdslen++;
- }
-
- memcpy(cmds + cmdslen, str, len);
- cmdslen += len;
- cmds[cmdslen] = '\0';
- }
-
- m->init.remove_commands = true;
- m->remove_commands = cmds;
- }
-
- return mod->remove_commands;
-
-failed:
- ERR(mod->ctx, "out of memory\n");
- return NULL;
-}
projects / thirdparty / kmod.git / commitdiff
