diff options
Diffstat (limited to 'package/busybox/patches/470-insmod_search.patch')
| -rw-r--r-- | package/busybox/patches/470-insmod_search.patch | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/package/busybox/patches/470-insmod_search.patch b/package/busybox/patches/470-insmod_search.patch new file mode 100644 index 000000000..7f0188fc8 --- /dev/null +++ b/package/busybox/patches/470-insmod_search.patch @@ -0,0 +1,137 @@ +--- a/modutils/Config.src ++++ b/modutils/Config.src +@@ -247,7 +247,7 @@ config FEATURE_MODUTILS_SYMBOLS + config DEFAULT_MODULES_DIR + string "Default directory containing modules" + default "/lib/modules" +- depends on DEPMOD || MODPROBE || MODPROBE_SMALL || MODINFO ++ depends on DEPMOD || INSMOD || MODPROBE || MODPROBE_SMALL || MODINFO + help + Directory that contains kernel modules. + Defaults to "/lib/modules" +--- a/modutils/insmod.c ++++ b/modutils/insmod.c +@@ -11,6 +11,106 @@ + + #include "libbb.h" + #include "modutils.h" ++#include <sys/utsname.h> ++#ifndef CONFIG_FEATURE_2_4_MODULES ++#include <sys/mman.h> ++#include <asm/unistd.h> ++#include <sys/syscall.h> ++#endif ++ ++static char *g_filename = NULL; ++ ++static int FAST_FUNC check_module_name_match(const char *filename, struct stat *statbuf, ++ void *userdata, int depth) ++{ ++ char *fullname = (char *) userdata; ++ char *tmp; ++ ++ if (fullname[0] == '\0') ++ return FALSE; ++ ++ tmp = bb_get_last_path_component_nostrip(filename); ++ if (strcmp(tmp, fullname) == 0) { ++ /* Stop searching if we find a match */ ++ g_filename = xstrdup(filename); ++ return FALSE; ++ } ++ ++ return TRUE; ++} ++ ++static int find_module(char *filename) ++{ ++ char *module_dir, real_module_dir[FILENAME_MAX]; ++ int len, slen, ret = ENOENT, k_version; ++ struct utsname myuname; ++ const char *suffix = ".ko"; ++ struct stat st; ++ ++ /* check the kernel version */ ++ if (uname(&myuname) != 0) ++ return EINVAL; ++ ++ k_version = myuname.release[0] - '0'; ++ ++ if (k_version < 2 || k_version > 9) ++ return EINVAL; ++ ++ if (k_version == 2) { ++ int k_patchlevel = myuname.release[2] - '0'; ++ if (k_patchlevel <= 4) ++#if ENABLE_FEATURE_2_4_MODULES ++ suffix = ".o"; ++#else ++ return EINVAL; ++#endif ++ } ++ ++ len = strlen(filename); ++ slen = strlen(suffix); ++ ++ /* check for suffix and absolute path first */ ++ if ((len < slen + 2) || (strcmp(filename + len - slen, suffix) != 0)) { ++ filename = xasprintf("%s%s", filename, suffix); ++ } else { ++ filename = strdup(filename); ++ if ((stat(filename, &st) == 0) && S_ISREG(st.st_mode)) { ++ g_filename = filename; ++ return 0; ++ } ++ free(filename); ++ return ENOENT; ++ } ++ ++ /* next: scan /lib/modules/<release> */ ++ /* Jump through hoops in case /lib/modules/`uname -r` ++ * is a symlink. We do not want recursive_action to ++ * follow symlinks, but we do want to follow the ++ * /lib/modules/`uname -r` dir, So resolve it ourselves ++ * if it is a link... */ ++ module_dir = concat_path_file(CONFIG_DEFAULT_MODULES_DIR, myuname.release); ++ if (realpath(module_dir, real_module_dir) != NULL) { ++ free(module_dir); ++ module_dir = real_module_dir; ++ } ++ ++ recursive_action(module_dir, ACTION_RECURSE, ++ check_module_name_match, 0, filename, 0); ++ ++ /* Check if we have a complete path */ ++ if (g_filename == NULL) ++ goto done; ++ ++ if ((stat(g_filename, &st) == 0) && S_ISREG(st.st_mode)) ++ ret = 0; ++ else ++ free(g_filename); ++ ++done: ++ free(filename); ++ ++ return ret; ++} + + /* 2.6 style insmod has no options and required filename + * (not module name - .ko can't be omitted) */ +@@ -58,9 +158,15 @@ int insmod_main(int argc UNUSED_PARAM, c + if (!filename) + bb_show_usage(); + +- rc = bb_init_module(filename, parse_cmdline_module_options(argv, /*quote_spaces:*/ 0)); ++ rc = find_module(filename); ++ if (rc || (g_filename == NULL)) ++ goto done; ++ ++ rc = bb_init_module(g_filename, parse_cmdline_module_options(argv, /*quote_spaces:*/ 0)); + if (rc) + bb_error_msg("can't insert '%s': %s", filename, moderror(rc)); ++ free (g_filename); + ++done: + return rc; + } |