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This commit is contained in:
Eric Andersen 2003-12-24 20:30:45 +00:00
parent d242e49c89
commit 3b1a74467a
3 changed files with 1081 additions and 1080 deletions
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1931
modutils/insmod.c
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File diff suppressed because it is too large Load Diff

228
modutils/modprobe.c
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@ -36,20 +36,20 @@
struct dep_t { struct dep_t {
char * m_module; char * m_module;
char * m_options; char * m_options;
int m_isalias : 1; int m_isalias : 1;
int m_reserved : 15; int m_reserved : 15;
int m_depcnt : 16; int m_depcnt : 16;
char ** m_deparr; char ** m_deparr;
struct dep_t * m_next; struct dep_t * m_next;
}; };
struct mod_list_t { struct mod_list_t {
char * m_module; char * m_module;
char * m_options; char * m_options;
struct mod_list_t * m_prev; struct mod_list_t * m_prev;
struct mod_list_t * m_next; struct mod_list_t * m_next;
}; };
@ -74,7 +74,7 @@ int parse_tag_value ( char *buffer, char **ptag, char **pvalue )
*ptag = tag; *ptag = tag;
*pvalue = value; *pvalue = value;
return bb_strlen( tag ) && bb_strlen( value ); return bb_strlen( tag ) && bb_strlen( value );
} }
@ -85,16 +85,16 @@ int parse_tag_value ( char *buffer, char **ptag, char **pvalue )
static char *reads ( int fd, char *buffer, size_t len ) static char *reads ( int fd, char *buffer, size_t len )
{ {
int n = read ( fd, buffer, len ); int n = read ( fd, buffer, len );
if ( n > 0 ) { if ( n > 0 ) {
char *p; char *p;
buffer [len-1] = 0; buffer [len-1] = 0;
p = strchr ( buffer, '\n' ); p = strchr ( buffer, '\n' );
if ( p ) { if ( p ) {
off_t offset; off_t offset;
offset = lseek ( fd, 0L, SEEK_CUR ); // Get the current file descriptor offset offset = lseek ( fd, 0L, SEEK_CUR ); // Get the current file descriptor offset
lseek ( fd, offset-n + (p-buffer) + 1, SEEK_SET ); // Set the file descriptor offset to right after the \n lseek ( fd, offset-n + (p-buffer) + 1, SEEK_SET ); // Set the file descriptor offset to right after the \n
@ -102,7 +102,7 @@ static char *reads ( int fd, char *buffer, size_t len )
} }
return buffer; return buffer;
} }
else else
return 0; return 0;
} }
@ -116,11 +116,11 @@ static struct dep_t *build_dep ( void )
char buffer[256]; char buffer[256];
char *filename = buffer; char *filename = buffer;
int continuation_line = 0; int continuation_line = 0;
k_version = 0; k_version = 0;
if ( uname ( &un )) if ( uname ( &un ))
return 0; return 0;
// check for buffer overflow in following code // check for buffer overflow in following code
if ( bb_strlen ( un.release ) > ( sizeof( buffer ) - 64 )) { if ( bb_strlen ( un.release ) > ( sizeof( buffer ) - 64 )) {
return 0; return 0;
@ -128,7 +128,7 @@ static struct dep_t *build_dep ( void )
if (un.release[0] == '2') { if (un.release[0] == '2') {
k_version = un.release[2] - '0'; k_version = un.release[2] - '0';
} }
strcpy ( filename, "/lib/modules/" ); strcpy ( filename, "/lib/modules/" );
strcat ( filename, un.release ); strcat ( filename, un.release );
strcat ( filename, "/modules.dep" ); strcat ( filename, "/modules.dep" );
@ -144,44 +144,44 @@ static struct dep_t *build_dep ( void )
while ( reads ( fd, buffer, sizeof( buffer ))) { while ( reads ( fd, buffer, sizeof( buffer ))) {
int l = bb_strlen ( buffer ); int l = bb_strlen ( buffer );
char *p = 0; char *p = 0;
while ( isspace ( buffer [l-1] )) { while ( isspace ( buffer [l-1] )) {
buffer [l-1] = 0; buffer [l-1] = 0;
l--; l--;
} }
if ( l == 0 ) { if ( l == 0 ) {
continuation_line = 0; continuation_line = 0;
continue; continue;
} }
if ( !continuation_line ) { if ( !continuation_line ) {
char *col = strchr ( buffer, ':' ); char *col = strchr ( buffer, ':' );
if ( col ) { if ( col ) {
char *mods; char *mods;
char *mod; char *mod;
int ext = 0; int ext = 0;
*col = 0; *col = 0;
mods = strrchr ( buffer, '/' ); mods = strrchr ( buffer, '/' );
if ( !mods ) if ( !mods )
mods = buffer; mods = buffer;
else else
mods++; mods++;
#if defined(CONFIG_FEATURE_2_6_MODULES) #if defined(CONFIG_FEATURE_2_6_MODULES)
if ((k_version > 4) && ( *(col-3) == '.' ) && if ((k_version > 4) && ( *(col-3) == '.' ) &&
( *(col-2) == 'k' ) && ( *(col-1) == 'o' )) ( *(col-2) == 'k' ) && ( *(col-1) == 'o' ))
ext = 3; ext = 3;
else else
#endif #endif
if (( *(col-2) == '.' ) && ( *(col-1) == 'o' )) if (( *(col-2) == '.' ) && ( *(col-1) == 'o' ))
ext = 2; ext = 2;
mod = bb_xstrndup ( mods, col - mods - ext ); mod = bb_xstrndup ( mods, col - mods - ext );
if ( !current ) { if ( !current ) {
first = current = (struct dep_t *) xmalloc ( sizeof ( struct dep_t )); first = current = (struct dep_t *) xmalloc ( sizeof ( struct dep_t ));
} }
@ -195,9 +195,9 @@ static struct dep_t *build_dep ( void )
current-> m_depcnt = 0; current-> m_depcnt = 0;
current-> m_deparr = 0; current-> m_deparr = 0;
current-> m_next = 0; current-> m_next = 0;
//printf ( "%s:\n", mod ); //printf ( "%s:\n", mod );
p = col + 1; p = col + 1;
} }
else else
@ -205,49 +205,49 @@ static struct dep_t *build_dep ( void )
} }
else else
p = buffer; p = buffer;
if ( p && *p ) { if ( p && *p ) {
char *end = &buffer [l-1]; char *end = &buffer [l-1];
char *deps = strrchr ( end, '/' ); char *deps = strrchr ( end, '/' );
char *dep; char *dep;
int ext = 0; int ext = 0;
while ( isblank ( *end ) || ( *end == '\\' )) while ( isblank ( *end ) || ( *end == '\\' ))
end--; end--;
deps = strrchr ( p, '/' ); deps = strrchr ( p, '/' );
if ( !deps || ( deps < p )) { if ( !deps || ( deps < p )) {
deps = p; deps = p;
while ( isblank ( *deps )) while ( isblank ( *deps ))
deps++; deps++;
} }
else else
deps++; deps++;
#if defined(CONFIG_FEATURE_2_6_MODULES) #if defined(CONFIG_FEATURE_2_6_MODULES)
if ((k_version > 4) && ( *(end-2) == '.' ) && *(end-1) == 'k' && if ((k_version > 4) && ( *(end-2) == '.' ) && *(end-1) == 'k' &&
( *end == 'o' )) ( *end == 'o' ))
ext = 3; ext = 3;
else else
#endif #endif
if (( *(end-1) == '.' ) && ( *end == 'o' )) if (( *(end-1) == '.' ) && ( *end == 'o' ))
ext = 2; ext = 2;
/* Cope with blank lines */ /* Cope with blank lines */
if ((end-deps-ext+1) <= 0) if ((end-deps-ext+1) <= 0)
continue; continue;
dep = bb_xstrndup ( deps, end - deps - ext + 1 ); dep = bb_xstrndup ( deps, end - deps - ext + 1 );
current-> m_depcnt++; current-> m_depcnt++;
current-> m_deparr = (char **) xrealloc ( current-> m_deparr, sizeof ( char *) * current-> m_depcnt ); current-> m_deparr = (char **) xrealloc ( current-> m_deparr, sizeof ( char *) * current-> m_depcnt );
current-> m_deparr [current-> m_depcnt - 1] = dep; current-> m_deparr [current-> m_depcnt - 1] = dep;
//printf ( " %d) %s\n", current-> m_depcnt, current-> m_deparr [current-> m_depcnt -1] ); //printf ( " %d) %s\n", current-> m_depcnt, current-> m_deparr [current-> m_depcnt -1] );
} }
if ( buffer [l-1] == '\\' ) if ( buffer [l-1] == '\\' )
continuation_line = 1; continuation_line = 1;
else else
@ -260,35 +260,35 @@ static struct dep_t *build_dep ( void )
if (( fd = open ( "/etc/modules.conf", O_RDONLY )) < 0 ) if (( fd = open ( "/etc/modules.conf", O_RDONLY )) < 0 )
if (( fd = open ( "/etc/conf.modules", O_RDONLY )) < 0 ) if (( fd = open ( "/etc/conf.modules", O_RDONLY )) < 0 )
return first; return first;
continuation_line = 0; continuation_line = 0;
while ( reads ( fd, buffer, sizeof( buffer ))) { while ( reads ( fd, buffer, sizeof( buffer ))) {
int l; int l;
char *p; char *p;
p = strchr ( buffer, '#' ); p = strchr ( buffer, '#' );
if ( p ) if ( p )
*p = 0; *p = 0;
l = bb_strlen ( buffer ); l = bb_strlen ( buffer );
while ( l && isspace ( buffer [l-1] )) { while ( l && isspace ( buffer [l-1] )) {
buffer [l-1] = 0; buffer [l-1] = 0;
l--; l--;
} }
if ( l == 0 ) { if ( l == 0 ) {
continuation_line = 0; continuation_line = 0;
continue; continue;
} }
if ( !continuation_line ) { if ( !continuation_line ) {
if (( strncmp ( buffer, "alias", 5 ) == 0 ) && isspace ( buffer [5] )) { if (( strncmp ( buffer, "alias", 5 ) == 0 ) && isspace ( buffer [5] )) {
char *alias, *mod; char *alias, *mod;
if ( parse_tag_value ( buffer + 6, &alias, &mod )) { if ( parse_tag_value ( buffer + 6, &alias, &mod )) {
// fprintf ( stderr, "ALIAS: '%s' -> '%s'\n", alias, mod ); // fprintf ( stderr, "ALIAS: '%s' -> '%s'\n", alias, mod );
if ( !current ) { if ( !current ) {
first = current = (struct dep_t *) xmalloc ( sizeof ( struct dep_t )); first = current = (struct dep_t *) xmalloc ( sizeof ( struct dep_t ));
} }
@ -298,7 +298,7 @@ static struct dep_t *build_dep ( void )
} }
current-> m_module = bb_xstrdup ( alias ); current-> m_module = bb_xstrdup ( alias );
current-> m_isalias = 1; current-> m_isalias = 1;
if (( strcmp ( alias, "off" ) == 0 ) || ( strcmp ( alias, "null" ) == 0 )) { if (( strcmp ( alias, "off" ) == 0 ) || ( strcmp ( alias, "null" ) == 0 )) {
current-> m_depcnt = 0; current-> m_depcnt = 0;
current-> m_deparr = 0; current-> m_deparr = 0;
@ -313,10 +313,10 @@ static struct dep_t *build_dep ( void )
} }
else if (( strncmp ( buffer, "options", 7 ) == 0 ) && isspace ( buffer [7] )) { else if (( strncmp ( buffer, "options", 7 ) == 0 ) && isspace ( buffer [7] )) {
char *mod, *opt; char *mod, *opt;
if ( parse_tag_value ( buffer + 8, &mod, &opt )) { if ( parse_tag_value ( buffer + 8, &mod, &opt )) {
struct dep_t *dt; struct dep_t *dt;
for ( dt = first; dt; dt = dt-> m_next ) { for ( dt = first; dt; dt = dt-> m_next ) {
if ( strcmp ( dt-> m_module, mod ) == 0 ) if ( strcmp ( dt-> m_module, mod ) == 0 )
break; break;
@ -324,7 +324,7 @@ static struct dep_t *build_dep ( void )
if ( dt ) { if ( dt ) {
dt-> m_options = xrealloc ( dt-> m_options, bb_strlen( opt ) + 1 ); dt-> m_options = xrealloc ( dt-> m_options, bb_strlen( opt ) + 1 );
strcpy ( dt-> m_options, opt ); strcpy ( dt-> m_options, opt );
// fprintf ( stderr, "OPTION: '%s' -> '%s'\n", dt-> m_module, dt-> m_options ); // fprintf ( stderr, "OPTION: '%s' -> '%s'\n", dt-> m_module, dt-> m_options );
} }
} }
@ -332,7 +332,7 @@ static struct dep_t *build_dep ( void )
} }
} }
close ( fd ); close ( fd );
return first; return first;
} }
@ -377,7 +377,7 @@ static int mod_process ( struct mod_list_t *list, int do_insert )
if (already_loaded (list->m_module) != 0) if (already_loaded (list->m_module) != 0)
snprintf ( lcmd, sizeof( lcmd ) - 1, "rmmod %s %s", do_syslog ? "-s" : "", list-> m_module ); snprintf ( lcmd, sizeof( lcmd ) - 1, "rmmod %s %s", do_syslog ? "-s" : "", list-> m_module );
} }
if ( verbose ) if ( verbose )
printf ( "%s\n", lcmd ); printf ( "%s\n", lcmd );
if ( !show_only && *lcmd) { if ( !show_only && *lcmd) {
@ -385,7 +385,7 @@ static int mod_process ( struct mod_list_t *list, int do_insert )
if (do_insert) rc = rc2; /* only last module matters */ if (do_insert) rc = rc2; /* only last module matters */
else if (!rc2) rc = 0; /* success if remove any mod */ else if (!rc2) rc = 0; /* success if remove any mod */
} }
list = do_insert ? list-> m_prev : list-> m_next; list = do_insert ? list-> m_prev : list-> m_next;
} }
return (show_only) ? 0 : rc; return (show_only) ? 0 : rc;
@ -403,12 +403,12 @@ static void check_dep ( char *mod, struct mod_list_t **head, struct mod_list_t *
#if defined(CONFIG_FEATURE_2_6_MODULES) #if defined(CONFIG_FEATURE_2_6_MODULES)
if ((k_version > 4) && ( mod [lm-3] == '.' ) && if ((k_version > 4) && ( mod [lm-3] == '.' ) &&
( mod [lm-2] == 'k' ) && ( mod [lm-1] == 'o' )) ( mod [lm-2] == 'k' ) && ( mod [lm-1] == 'o' ))
mod [lm-3] = 0; mod [lm-3] = 0;
else else
#endif #endif
if (( mod [lm-2] == '.' ) && ( mod [lm-1] == 'o' )) if (( mod [lm-2] == '.' ) && ( mod [lm-1] == 'o' ))
mod [lm-2] = 0; mod [lm-2] = 0;
// check dependencies // check dependencies
for ( dt = depend; dt; dt = dt-> m_next ) { for ( dt = depend; dt; dt = dt-> m_next ) {
@ -417,12 +417,12 @@ static void check_dep ( char *mod, struct mod_list_t **head, struct mod_list_t *
break; break;
} }
} }
// resolve alias names // resolve alias names
while ( dt && dt-> m_isalias ) { while ( dt && dt-> m_isalias ) {
if ( dt-> m_depcnt == 1 ) { if ( dt-> m_depcnt == 1 ) {
struct dep_t *adt; struct dep_t *adt;
for ( adt = depend; adt; adt = adt-> m_next ) { for ( adt = depend; adt; adt = adt-> m_next ) {
if ( strcmp ( adt-> m_module, dt-> m_deparr [0] ) == 0 ) if ( strcmp ( adt-> m_module, dt-> m_deparr [0] ) == 0 )
break; break;
@ -439,7 +439,7 @@ static void check_dep ( char *mod, struct mod_list_t **head, struct mod_list_t *
else else
return; return;
} }
// search for duplicates // search for duplicates
for ( find = *head; find; find = find-> m_next ) { for ( find = *head; find; find = find-> m_next ) {
if ( !strcmp ( mod, find-> m_module )) { if ( !strcmp ( mod, find-> m_module )) {
@ -449,12 +449,12 @@ static void check_dep ( char *mod, struct mod_list_t **head, struct mod_list_t *
find-> m_prev-> m_next = find-> m_next; find-> m_prev-> m_next = find-> m_next;
else else
*head = find-> m_next; *head = find-> m_next;
if ( find-> m_next ) if ( find-> m_next )
find-> m_next-> m_prev = find-> m_prev; find-> m_next-> m_prev = find-> m_prev;
else else
*tail = find-> m_prev; *tail = find-> m_prev;
break; // there can be only one duplicate break; // there can be only one duplicate
} }
} }
@ -474,10 +474,10 @@ static void check_dep ( char *mod, struct mod_list_t **head, struct mod_list_t *
if ( !*head ) if ( !*head )
*head = find; *head = find;
*tail = find; *tail = find;
if ( dt ) { if ( dt ) {
int i; int i;
for ( i = 0; i < dt-> m_depcnt; i++ ) for ( i = 0; i < dt-> m_depcnt; i++ )
check_dep ( dt-> m_deparr [i], head, tail ); check_dep ( dt-> m_deparr [i], head, tail );
} }
@ -490,34 +490,34 @@ static int mod_insert ( char *mod, int argc, char **argv )
struct mod_list_t *tail = 0; struct mod_list_t *tail = 0;
struct mod_list_t *head = 0; struct mod_list_t *head = 0;
int rc; int rc;
// get dep list for module mod // get dep list for module mod
check_dep ( mod, &head, &tail ); check_dep ( mod, &head, &tail );
if ( head && tail ) { if ( head && tail ) {
if ( argc ) { if ( argc ) {
int i; int i;
int l = 0; int l = 0;
// append module args // append module args
for ( i = 0; i < argc; i++ ) for ( i = 0; i < argc; i++ )
l += ( bb_strlen ( argv [i] ) + 1 ); l += ( bb_strlen ( argv [i] ) + 1 );
head-> m_options = xrealloc ( head-> m_options, l + 1 ); head-> m_options = xrealloc ( head-> m_options, l + 1 );
head-> m_options [0] = 0; head-> m_options [0] = 0;
for ( i = 0; i < argc; i++ ) { for ( i = 0; i < argc; i++ ) {
strcat ( head-> m_options, argv [i] ); strcat ( head-> m_options, argv [i] );
strcat ( head-> m_options, " " ); strcat ( head-> m_options, " " );
} }
} }
// process tail ---> head // process tail ---> head
rc = mod_process ( tail, 1 ); rc = mod_process ( tail, 1 );
} }
else else
rc = 1; rc = 1;
return rc; return rc;
} }
@ -525,21 +525,21 @@ static int mod_remove ( char *mod )
{ {
int rc; int rc;
static struct mod_list_t rm_a_dummy = { "-a", 0, 0 }; static struct mod_list_t rm_a_dummy = { "-a", 0, 0 };
struct mod_list_t *head = 0; struct mod_list_t *head = 0;
struct mod_list_t *tail = 0; struct mod_list_t *tail = 0;
if ( mod ) if ( mod )
check_dep ( mod, &head, &tail ); check_dep ( mod, &head, &tail );
else // autoclean else // autoclean
head = tail = &rm_a_dummy; head = tail = &rm_a_dummy;
if ( head && tail ) if ( head && tail )
rc = mod_process ( head, 0 ); // process head ---> tail rc = mod_process ( head, 0 ); // process head ---> tail
else else
rc = 1; rc = 1;
return rc; return rc;
} }
@ -553,67 +553,67 @@ extern int modprobe_main(int argc, char** argv)
while ((opt = getopt(argc, argv, "acdklnqrst:vVC:")) != -1) { while ((opt = getopt(argc, argv, "acdklnqrst:vVC:")) != -1) {
switch(opt) { switch(opt) {
case 'c': // no config used case 'c': // no config used
case 'l': // no pattern matching case 'l': // no pattern matching
return EXIT_SUCCESS; return EXIT_SUCCESS;
break; break;
case 'C': // no config used case 'C': // no config used
case 't': // no pattern matching case 't': // no pattern matching
bb_error_msg_and_die("-t and -C not supported"); bb_error_msg_and_die("-t and -C not supported");
case 'a': // ignore case 'a': // ignore
case 'd': // ignore case 'd': // ignore
break; break;
case 'k': case 'k':
autoclean++; autoclean++;
break; break;
case 'n': case 'n':
show_only++; show_only++;
break; break;
case 'q': case 'q':
quiet++; quiet++;
break; break;
case 'r': case 'r':
remove_opt++; remove_opt++;
break; break;
case 's': case 's':
do_syslog++; do_syslog++;
break; break;
case 'v': case 'v':
verbose++; verbose++;
break; break;
case 'V': case 'V':
default: default:
bb_show_usage(); bb_show_usage();
break; break;
} }
} }
depend = build_dep ( ); depend = build_dep ( );
if ( !depend ) if ( !depend )
bb_error_msg_and_die ( "could not parse modules.dep\n" ); bb_error_msg_and_die ( "could not parse modules.dep\n" );
if (remove_opt) { if (remove_opt) {
int rc = EXIT_SUCCESS; int rc = EXIT_SUCCESS;
do { do {
if (mod_remove ( optind < argc ? if (mod_remove ( optind < argc ?
bb_xstrdup (argv [optind]) : NULL )) { bb_xstrdup (argv [optind]) : NULL )) {
bb_error_msg ("failed to remove module %s", bb_error_msg ("failed to remove module %s",
argv [optind] ); argv [optind] );
rc = EXIT_FAILURE; rc = EXIT_FAILURE;
} }
} while ( ++optind < argc ); } while ( ++optind < argc );
return rc; return rc;
} }
if (optind >= argc) if (optind >= argc)
bb_error_msg_and_die ( "No module or pattern provided\n" ); bb_error_msg_and_die ( "No module or pattern provided\n" );
if ( mod_insert ( bb_xstrdup ( argv [optind] ), argc - optind - 1, argv + optind + 1 )) if ( mod_insert ( bb_xstrdup ( argv [optind] ), argc - optind - 1, argv + optind + 1 ))
bb_error_msg_and_die ( "failed to load module %s", argv [optind] ); bb_error_msg_and_die ( "failed to load module %s", argv [optind] );
return EXIT_SUCCESS; return EXIT_SUCCESS;
} }

2
modutils/rmmod.c
View File

@ -73,7 +73,7 @@ extern int rmmod_main(int argc, char **argv)
} }
if (optind == argc) if (optind == argc)
bb_show_usage(); bb_show_usage();
for (n = optind; n < argc; n++) { for (n = optind; n < argc; n++) {
if (syscall(__NR_delete_module, argv[n], flags) < 0) { if (syscall(__NR_delete_module, argv[n], flags) < 0) {