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https://github.com/sheumann/hush.git
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Patch from Mike Castle to cleanup some modutils issues, in
particular making alias support work better.
This commit is contained in:
Eric Andersen
parent
a4fcccefa6
commit
807bd846b6
@ -34,7 +34,8 @@
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struct dep_t {
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char * m_module;
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char * m_name;
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char * m_path;
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char * m_options;
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int m_isalias : 1;
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@ -47,7 +48,8 @@ struct dep_t {
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};
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struct mod_list_t {
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char * m_module;
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char * m_name;
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char * m_path;
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char * m_options;
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struct mod_list_t * m_prev;
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@ -159,11 +161,12 @@ static struct dep_t *build_dep ( void )
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if ( !continuation_line ) {
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char *col = strchr ( buffer, ':' );
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char *dot = col;
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if ( col ) {
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char *mods;
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char *modpath;
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char *mod;
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int ext = 0;
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*col = 0;
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mods = strrchr ( buffer, '/' );
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@ -173,16 +176,19 @@ static struct dep_t *build_dep ( void )
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else
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mods++;
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modpath = strchr ( buffer, '/' );
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if ( !modpath )
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modpath = buffer;
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#if defined(CONFIG_FEATURE_2_6_MODULES)
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if ((k_version > 4) && ( *(col-3) == '.' ) &&
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( *(col-2) == 'k' ) && ( *(col-1) == 'o' ))
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ext = 3;
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dot = col - 3;
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else
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#endif
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if (( *(col-2) == '.' ) && ( *(col-1) == 'o' ))
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ext = 2;
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dot = col - 2;
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mod = bb_xstrndup ( buffer, col - buffer );
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mod = bb_xstrndup ( mods, dot - mods );
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if ( !current ) {
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first = current = (struct dep_t *) xmalloc ( sizeof ( struct dep_t ));
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@ -191,7 +197,8 @@ static struct dep_t *build_dep ( void )
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current-> m_next = (struct dep_t *) xmalloc ( sizeof ( struct dep_t ));
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current = current-> m_next;
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}
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current-> m_module = mod;
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current-> m_name = mod;
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current-> m_path = bb_xstrdup(modpath);
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current-> m_options = 0;
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current-> m_isalias = 0;
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current-> m_depcnt = 0;
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@ -317,7 +324,7 @@ static struct dep_t *build_dep ( void )
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current-> m_next = (struct dep_t *) xcalloc ( 1, sizeof ( struct dep_t ));
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current = current-> m_next;
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}
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current-> m_module = bb_xstrdup ( alias );
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current-> m_name = bb_xstrdup ( alias );
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current-> m_isalias = 1;
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if (( strcmp ( mod, "off" ) == 0 ) || ( strcmp ( mod, "null" ) == 0 )) {
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@ -339,14 +346,14 @@ static struct dep_t *build_dep ( void )
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struct dep_t *dt;
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for ( dt = first; dt; dt = dt-> m_next ) {
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if ( strcmp ( dt-> m_module, mod ) == 0 )
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if ( strcmp ( dt-> m_name, mod ) == 0 )
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break;
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}
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if ( dt ) {
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dt-> m_options = xrealloc ( dt-> m_options, bb_strlen( opt ) + 1 );
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strcpy ( dt-> m_options, opt );
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// fprintf ( stderr, "OPTION: '%s' -> '%s'\n", dt-> m_module, dt-> m_options );
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// fprintf ( stderr, "OPTION: '%s' -> '%s'\n", dt-> m_name, dt-> m_options );
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}
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}
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}
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@ -357,29 +364,6 @@ static struct dep_t *build_dep ( void )
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return first;
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}
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/* check if /lib/modules/bar/foo.ko belongs to module foo */
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/* return 1 = found, 0 = not found */
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static int mod_strcmp ( const char *mod_path, const char *mod_name )
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{
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/* last path component */
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const char *last_comp = strrchr (mod_path, '/');
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const char *mod_ext = ".o";
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#if defined(CONFIG_FEATURE_2_6_MODULES)
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if ( k_version > 4 )
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mod_ext = ".ko";
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#endif
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last_comp = last_comp ? last_comp + 1 : mod_path;
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return (strncmp(last_comp,
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mod_name,
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strlen(mod_name)) == 0 ) &&
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((strcmp(last_comp + strlen (mod_name), mod_ext) == 0) || last_comp[strlen(mod_name)] == 0) &&
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(strcmp(mod_path + strlen(mod_path) -
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strlen(mod_ext), mod_ext) == 0);
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}
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/* return 1 = loaded, 0 = not loaded, -1 = can't tell */
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static int already_loaded (const char *name)
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{
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@ -396,7 +380,7 @@ static int already_loaded (const char *name)
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p = strchr (buffer, ' ');
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if (p) {
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*p = 0;
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if (mod_strcmp (name, buffer)) {
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if (strcmp (name, buffer) == 0) {
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close (fd);
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return 1;
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}
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@ -415,15 +399,16 @@ static int mod_process ( struct mod_list_t *list, int do_insert )
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while ( list ) {
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*lcmd = '\0';
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if ( do_insert ) {
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if (already_loaded (list->m_module) != 1)
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if (already_loaded (list->m_name) != 1)
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snprintf ( lcmd, sizeof( lcmd ) - 1, "insmod %s %s %s %s %s",
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do_syslog ? "-s" : "", autoclean ? "-k" : "",
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quiet ? "-q" : "", list-> m_module, list-> m_options ?
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quiet ? "-q" : "", list-> m_path, list-> m_options ?
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list-> m_options : "" );
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} else {
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if (already_loaded (list->m_module) != 0)
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/* modutils uses short name for removal */
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if (already_loaded (list->m_name) != 0)
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snprintf ( lcmd, sizeof( lcmd ) - 1, "rmmod %s %s",
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do_syslog ? "-s" : "", list-> m_module );
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do_syslog ? "-s" : "", list-> m_name );
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}
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if (*lcmd) {
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@ -450,24 +435,13 @@ static void check_dep ( char *mod, struct mod_list_t **head, struct mod_list_t *
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struct mod_list_t *find;
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struct dep_t *dt;
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char *opt = 0;
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int lm;
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// remove .o extension
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lm = bb_strlen ( mod );
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#if defined(CONFIG_FEATURE_2_6_MODULES)
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if ((k_version > 4) && ( mod [lm-3] == '.' ) &&
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( mod [lm-2] == 'k' ) && ( mod [lm-1] == 'o' ))
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mod [lm-3] = 0;
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else
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#endif
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if (( mod [lm-2] == '.' ) && ( mod [lm-1] == 'o' ))
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mod [lm-2] = 0;
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char *path = 0;
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// check dependencies
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for ( dt = depend; dt; dt = dt-> m_next ) {
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if ( mod_strcmp ( dt-> m_module, mod )) {
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mod = dt-> m_module;
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if ( strcmp ( dt-> m_name, mod ) == 0) {
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mod = dt-> m_name;
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path = dt-> m_path;
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opt = dt-> m_options;
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break;
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}
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@ -479,12 +453,13 @@ static void check_dep ( char *mod, struct mod_list_t **head, struct mod_list_t *
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struct dep_t *adt;
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for ( adt = depend; adt; adt = adt-> m_next ) {
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if ( strcmp ( adt-> m_module, dt-> m_deparr [0] ) == 0 )
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if ( strcmp ( adt-> m_name, dt-> m_deparr [0] ) == 0 )
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break;
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}
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if ( adt ) {
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dt = adt;
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mod = dt-> m_module;
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mod = dt-> m_name;
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path = dt-> m_path;
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if ( !opt )
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opt = dt-> m_options;
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}
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@ -497,7 +472,7 @@ static void check_dep ( char *mod, struct mod_list_t **head, struct mod_list_t *
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// search for duplicates
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for ( find = *head; find; find = find-> m_next ) {
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if ( !strcmp ( mod, find-> m_module )) {
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if ( !strcmp ( mod, find-> m_name )) {
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// found -> dequeue it
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if ( find-> m_prev )
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@ -516,7 +491,8 @@ static void check_dep ( char *mod, struct mod_list_t **head, struct mod_list_t *
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if ( !find ) { // did not find a duplicate
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find = (struct mod_list_t *) xmalloc ( sizeof(struct mod_list_t));
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find-> m_module = mod;
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find-> m_name = mod;
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find-> m_path = path;
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find-> m_options = opt;
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}
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@ -599,8 +575,6 @@ static int mod_remove ( char *mod )
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}
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extern int modprobe_main(int argc, char** argv)
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{
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int opt;
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