vanhofen
2 years ago
3 changed files with 32 additions and 175 deletions
@ -1,162 +0,0 @@ |
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diff --git a/modutils/Config.src b/modutils/Config.src
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index 9b76c83..c7579c5 100644
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--- a/modutils/Config.src
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+++ b/modutils/Config.src
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@@ -166,7 +166,7 @@ config FEATURE_MODUTILS_SYMBOLS
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config DEFAULT_MODULES_DIR |
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string "Default directory containing modules" |
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default "/lib/modules" |
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- depends on DEPMOD || MODPROBE || MODINFO
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+ depends on DEPMOD || MODPROBE || MODINFO || INSMOD
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help |
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Directory that contains kernel modules. |
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Defaults to "/lib/modules" |
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diff --git a/modutils/insmod.c b/modutils/insmod.c
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index 8526979..d36acc4 100644
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--- a/modutils/insmod.c
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+++ b/modutils/insmod.c
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@@ -45,11 +45,42 @@
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//usage: ) |
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//usage:#endif |
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+#include <sys/utsname.h>
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+static char *m_filename;
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+static char *m_fullName;
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+
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+static int FAST_FUNC check_module_name_match(const char *filename,
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+ struct stat *statbuf UNUSED_PARAM,
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+ void *userdata, int depth UNUSED_PARAM)
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+{
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+ char *fullname = (char *) userdata;
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+ char *tmp;
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+
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+ if (fullname[0] == '\0')
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+ return FALSE;
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+
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+ tmp = bb_get_last_path_component_nostrip(filename);
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+ if (strcmp(tmp, fullname) == 0) {
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+ /* Stop searching if we find a match */
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+ m_filename = xstrdup(filename);
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+ return FALSE;
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+ }
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+ return TRUE;
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+}
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+
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int insmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
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int insmod_main(int argc UNUSED_PARAM, char **argv) |
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{ |
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char *filename; |
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int rc; |
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+int len;
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+char *tmp;
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+char *tmp2;
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+int k_version = 0;
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+struct stat st;
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+struct utsname uts;
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+char *m_name;
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+FILE *fp;
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/* Compat note: |
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* 2.6 style insmod has no options and required filename |
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@@ -68,9 +99,99 @@ int insmod_main(int argc UNUSED_PARAM, char **argv)
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if (!filename) |
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bb_show_usage(); |
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- rc = bb_init_module(filename, parse_cmdline_module_options(argv, /*quote_spaces:*/ 0));
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+ /* Grab the module name */
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+ tmp = xstrdup(filename);
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+ len = strlen(filename);
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+
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+ if (uname(&uts) == 0) {
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+ if (uts.release[0] == '2') {
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+ k_version = uts.release[2] - '0';
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+ }
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+ }
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+
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+ if (k_version > 4 && len > 3 && tmp[len - 3] == '.'
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+ && tmp[len - 2] == 'k' && tmp[len - 1] == 'o'
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+ ) {
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+ len -= 3;
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+ tmp[len] = '\0';
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+ } else
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+ if (len > 2 && tmp[len - 2] == '.' && tmp[len - 1] == 'o') {
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+ len -= 2;
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+ tmp[len] = '\0';
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+ }
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+
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+ if (k_version > 4)
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+ m_fullName = xasprintf("%s.ko", tmp);
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+ else
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+ m_fullName = xasprintf("%s.o", tmp);
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+
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+ if (!m_name) {
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+ m_name = tmp;
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+ }
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+ free(tmp);
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+
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+ /* first look in /var/lib/modules */
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+ tmp2 = alloca(strlen(m_fullName) + sizeof("/var/lib/modules/"));
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+ strcpy(tmp2, "/var/lib/modules/");
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+ strcat(tmp2, m_fullName);
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+ if (stat(tmp2, &st) >= 0 && S_ISREG(st.st_mode) && (fp = fopen(tmp2, "r")) != NULL) {
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+ m_filename = xstrdup(tmp2);
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+ printf("insmod: preferring module %s\n", m_filename);
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+ } else
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+ /* Get a filedesc for the module. Check that we have a complete path */
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+ if (stat(filename, &st) < 0 || !S_ISREG(st.st_mode)
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+ || (fp = fopen_for_read(filename)) == NULL
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+ ) {
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+ /* Hmm. Could not open it. First search under /lib/modules/`uname -r`,
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+ * but do not error out yet if we fail to find it... */
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+ if (k_version) { /* uname succeedd */
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+ char *module_dir;
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+ char *tmdn;
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+
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+ tmdn = concat_path_file(CONFIG_DEFAULT_MODULES_DIR, uts.release);
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+ /* Jump through hoops in case /lib/modules/`uname -r`
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+ * is a symlink. We do not want recursive_action to
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+ * follow symlinks, but we do want to follow the
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+ * /lib/modules/`uname -r` dir, So resolve it ourselves
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+ * if it is a link... */
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+ module_dir = xmalloc_readlink(tmdn);
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+ if (!module_dir)
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+ module_dir = xstrdup(tmdn);
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+ recursive_action(module_dir, ACTION_RECURSE,
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+ check_module_name_match, NULL, m_fullName, 0);
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+ free(module_dir);
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+ free(tmdn);
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+ }
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+
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+ /* Check if we have found anything yet */
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+ if (!m_filename || ((fp = fopen_for_read(m_filename)) == NULL)) {
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+ int r;
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+ char *module_dir;
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+
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+ free(m_filename);
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+ m_filename = NULL;
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+ module_dir = xmalloc_readlink(CONFIG_DEFAULT_MODULES_DIR);
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+ if (!module_dir)
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+ module_dir = xstrdup(CONFIG_DEFAULT_MODULES_DIR);
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+ /* No module found under /lib/modules/`uname -r`, this
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+ * time cast the net a bit wider. Search /lib/modules/ */
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+ r = recursive_action(module_dir, ACTION_RECURSE,
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+ check_module_name_match, NULL, m_fullName, 0);
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+ if (r)
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+ bb_error_msg_and_die("%s: module not found", m_fullName);
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+ free(module_dir);
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+ if (m_filename == NULL
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+ || ((fp = fopen_for_read(m_filename)) == NULL)
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+ ) {
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+ bb_error_msg_and_die("%s: module not found", m_fullName);
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+ }
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+ }
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+ } else
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+ m_filename = xstrdup(filename);
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+
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+ rc = bb_init_module(m_filename, parse_cmdline_module_options(argv, /*quote_spaces:*/ 0));
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if (rc) |
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- bb_error_msg("can't insert '%s': %s", filename, moderror(rc));
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+ bb_error_msg("can't insert '%s': %s", m_filename, moderror(rc));
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return rc; |
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} |
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