diff options
Diffstat (limited to 'tools/remove.c')
-rw-r--r-- | tools/remove.c | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/tools/remove.c b/tools/remove.c deleted file mode 100644 index 387ef0e..0000000 --- a/tools/remove.c +++ /dev/null @@ -1,153 +0,0 @@ -/* - * kmod-remove - remove modules from the kernel. - * - * Copyright (C) 2015 Intel Corporation. All rights reserved. - * Copyright (C) 2011-2013 ProFUSION embedded systems - * - * 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, either version 2 of the License, or - * (at your option) any later version. - * - * 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, see <http://www.gnu.org/licenses/>. - */ - -#include <errno.h> -#include <getopt.h> -#include <stdlib.h> -#include <string.h> - -#include <libkmod/libkmod.h> - -#include "kmod.h" - -static const char cmdopts_s[] = "h"; -static const struct option cmdopts[] = { - {"help", no_argument, 0, 'h'}, - { } -}; - -static void help(void) -{ - printf("Usage:\n" - "\t%s remove [options] module\n" - "Options:\n" - "\t-h, --help show this help\n", - program_invocation_short_name); -} - -static int check_module_inuse(struct kmod_module *mod) { - struct kmod_list *holders; - int state, ret; - - state = kmod_module_get_initstate(mod); - - if (state == KMOD_MODULE_BUILTIN) { - ERR("Module %s is builtin.\n", kmod_module_get_name(mod)); - return -ENOENT; - } else if (state < 0) { - ERR("Module %s is not currently loaded\n", - kmod_module_get_name(mod)); - return -ENOENT; - } - - holders = kmod_module_get_holders(mod); - if (holders != NULL) { - struct kmod_list *itr; - - ERR("Module %s is in use by:", kmod_module_get_name(mod)); - - kmod_list_foreach(itr, holders) { - struct kmod_module *hm = kmod_module_get_module(itr); - fprintf(stderr, " %s", kmod_module_get_name(hm)); - kmod_module_unref(hm); - } - fputc('\n', stderr); - - kmod_module_unref_list(holders); - return -EBUSY; - } - - ret = kmod_module_get_refcnt(mod); - if (ret > 0) { - ERR("Module %s is in use\n", kmod_module_get_name(mod)); - return -EBUSY; - } else if (ret == -ENOENT) { - ERR("Module unloading is not supported\n"); - } - - return ret; -} - -static int do_remove(int argc, char *argv[]) -{ - struct kmod_ctx *ctx; - struct kmod_module *mod; - const char *name; - int err, r = EXIT_SUCCESS; - - for (;;) { - int c, idx =0; - c = getopt_long(argc, argv, cmdopts_s, cmdopts, &idx); - if (c == -1) - break; - switch (c) { - case 'h': - help(); - return EXIT_SUCCESS; - - default: - ERR("Unexpected getopt_long() value '%c'.\n", c); - return EXIT_FAILURE; - } - } - - if (optind >= argc) { - ERR("Missing module name\n"); - return EXIT_FAILURE; - } - - ctx = kmod_new(NULL, NULL); - if (!ctx) { - ERR("kmod_new() failed!\n"); - return EXIT_FAILURE; - } - - name = argv[optind]; - err = kmod_module_new_from_name(ctx, name, &mod); - if (err < 0) { - ERR("Could not remove module %s: %s\n", name, strerror(-err)); - goto end; - } - - err = check_module_inuse(mod); - if (err < 0) - goto unref; - - err = kmod_module_remove_module(mod, 0); - if (err < 0) - goto unref; - -unref: - kmod_module_unref(mod); - -end: - kmod_unref(ctx); - if (err < 0) { - r = EXIT_FAILURE; - ERR("Could not remove module %s: %s\n", name, strerror(-err)); - } - return r; -} - -const struct kmod_cmd kmod_cmd_remove = { - .name = "remove", - .cmd = do_remove, - .help = "remove module from kernel", -}; |