fix insmod search when 2.4 module support is disabled
SVN-Revision: 7528
This commit is contained in:
Imre Kaloz
parent
741dbcff16
commit
a2f2b9cfad
196
package/busybox/patches/999-insmod2.6_search.patch
Normal file
196
package/busybox/patches/999-insmod2.6_search.patch
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@ -0,0 +1,196 @@
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--- busybox/modutils/insmod.c 2007-05-11 12:10:43.000000000 +0200
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+++ busybox/modutils/insmod.c 2007-05-11 12:12:15.000000000 +0200
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@@ -75,6 +75,30 @@
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extern int insmod_ng_main( int argc, char **argv);
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#endif
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+static char *m_filename;
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+static char *m_fullName;
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+#define _PATH_MODULES "/lib/modules"
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+
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+static int check_module_name_match(const char *filename, struct stat *statbuf,
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+ void *userdata, int depth)
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+{
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+ char *fullname = (char *) userdata;
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+
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+ if (fullname[0] == '\0')
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+ return FALSE;
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+ else {
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+ char *tmp, *tmp1 = xstrdup(filename);
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+ tmp = bb_get_last_path_component(tmp1);
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+ if (strcmp(tmp, fullname) == 0) {
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+ free(tmp1);
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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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+ free(tmp1);
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+ }
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+ return TRUE;
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+}
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#if ENABLE_FEATURE_2_4_MODULES
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@@ -680,7 +704,6 @@
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#endif
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-#define _PATH_MODULES "/lib/modules"
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enum { STRVERSIONLEN = 64 };
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/*======================================================================*/
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@@ -793,37 +816,6 @@
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static int n_ext_modules_used;
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extern int delete_module(const char *);
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-static char *m_filename;
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-static char *m_fullName;
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-
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-
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-/*======================================================================*/
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-
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-
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-static int check_module_name_match(const char *filename, struct stat *statbuf,
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- void *userdata, int depth)
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-{
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- char *fullname = (char *) userdata;
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-
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- if (fullname[0] == '\0')
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- return FALSE;
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- else {
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- char *tmp, *tmp1 = xstrdup(filename);
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- tmp = bb_get_last_path_component(tmp1);
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- if (strcmp(tmp, fullname) == 0) {
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- free(tmp1);
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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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- free(tmp1);
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- }
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- return TRUE;
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-}
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-
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-
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-/*======================================================================*/
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-
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static struct obj_file *arch_new_file(void)
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{
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struct arch_file *f;
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@@ -4265,14 +4257,97 @@
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long ret;
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size_t len;
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void *map;
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- char *filename, *options;
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+ char *options, *tmp;
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+ struct stat st;
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+#if ENABLE_FEATURE_CLEAN_UP
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+ FILE *fp = 0;
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+#else
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+ FILE *fp;
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+#endif
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+ int k_version = 0;
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+ struct utsname myuname;
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- filename = *++argv;
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- if (!filename)
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+ if (argc < 2)
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bb_show_usage();
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+#if !ENABLE_FEATURE_2_4_MODULES
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+ /* Grab the module name */
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+ tmp = basename(xstrdup(argv[1]));
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+ len = strlen(tmp);
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+
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+ if (uname(&myuname) == 0) {
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+ if (myuname.release[0] == '2') {
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+ k_version = myuname.release[2] - '0';
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+ }
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+ }
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+
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+ if (len > 3 && tmp[len - 3] == '.' && tmp[len - 2] == 'k' && tmp[len - 1] == 'o') {
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+ len -= 3;
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+ tmp[len] = '\0';
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+ }
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+
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+
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+ m_fullName = xasprintf("%s.ko", tmp);
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+
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+ /* Get a filedesc for the module. Check we we have a complete path */
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+ if (stat(argv[1], &st) < 0 || !S_ISREG(st.st_mode)
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+ || (fp = fopen(argv[1], "r")) == 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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+ char real_module_dir[FILENAME_MAX];
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+
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+ tmdn = concat_path_file(_PATH_MODULES, myuname.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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+ if (realpath(tmdn, real_module_dir) == NULL)
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+ module_dir = tmdn;
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+ else
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+ module_dir = real_module_dir;
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+ recursive_action(module_dir, TRUE, FALSE, FALSE,
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+ check_module_name_match, 0, m_fullName, 0);
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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 == 0 || ((fp = fopen(m_filename, "r")) == NULL)) {
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+ char module_dir[FILENAME_MAX];
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+
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+ free(m_filename);
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+ m_filename = 0;
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+ if (realpath (_PATH_MODULES, module_dir) == NULL)
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+ strcpy(module_dir, _PATH_MODULES);
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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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+ if (!recursive_action(module_dir, TRUE, FALSE, FALSE,
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+ check_module_name_match, 0, m_fullName, 0)
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+ ) {
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+ if (m_filename == 0
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+ || ((fp = fopen(m_filename, "r")) == NULL)
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+ ) {
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+ bb_error_msg("%s: no module by that name found", m_fullName);
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+#if ENABLE_FEATURE_CLEAN_UP
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+ if(fp)
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+ fclose(fp);
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+ free(m_filename);
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+#endif
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+ }
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+ } else
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+ bb_error_msg_and_die("%s: no module by that name found", m_fullName);
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+ }
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+ } else
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+ m_filename = xstrdup(argv[1]);
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+#endif
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+
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/* Rest is options */
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options = xstrdup("");
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+ argv++;
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while (*++argv) {
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int optlen = strlen(options);
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options = xrealloc(options, optlen + 2 + strlen(*argv) + 2);
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@@ -4300,13 +4375,13 @@
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}
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#else
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len = MAXINT(ssize_t);
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- map = xmalloc_open_read_close(filename, &len);
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+ map = xmalloc_open_read_close(m_filename, &len);
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#endif
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ret = syscall(__NR_init_module, map, len, options);
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if (ret != 0) {
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bb_perror_msg_and_die("cannot insert '%s': %s (%li)",
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- filename, moderror(errno), ret);
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+ m_filename, moderror(errno), ret);
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}
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return 0;
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