toybox: toys/pending/modprobe.c annotate

annotate toys/pending/modprobe.c @ 1433:00c20f410c46 draft

Patches to commands for issues reported from static analysis tool. portability.h.patch - it is for O_CLOEXEC, as compiler complained of it. Makefile.patch - for cleaning generated/*.o files and libopts.dat file [Fixup to uniq.c from Rob.]

author	Ashwini Sharma <ak.ashwini1981@gmail.com>
date	Tue, 12 Aug 2014 07:09:01 -0500
parents	4a7438307429
children	e127aa575ff2

rev	line source
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	1 /* modprobe.c - modprobe utility.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	2 *
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	3 * Copyright 2012 Madhur Verma <mad.flexi@gmail.com>
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	4 * Copyright 2013 Kyungwan Han <asura321@gmail.com>
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	5 *
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	6 * No Standard.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	7
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	8 USE_MODPROBE(NEWTOY(modprobe, "alrqvsDb", TOYFLAG_SBIN))
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	9
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	10 config MODPROBE
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	11 bool "modprobe"
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	12 default n
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	13 help
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	14 usage: modprobe [-alrqvsDb] MODULE [symbol=value][...]
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	15
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	16 modprobe utility - inserts modules and dependencies.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	17
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	18 -a Load multiple MODULEs
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	19 -l List (MODULE is a pattern)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	20 -r Remove MODULE (stacks) or do autoclean
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	21 -q Quiet
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	22 -v Verbose
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	23 -s Log to syslog
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	24 -D Show dependencies
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	25 -b Apply blacklist to module names too
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	26 */
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	27 #define FOR_modprobe
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	28 #include "toys.h"
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	29 #include <sys/syscall.h>
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	30
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	31 GLOBALS(
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	32 struct arg_list *probes;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	33 struct arg_list *dbase[256];
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	34 char *cmdopts;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	35 int nudeps;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	36 uint8_t symreq;
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	37 void (dbg)(char format, ...);
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	38 )
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	39
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	40 /* Note: if "#define DBASE_SIZE" modified,
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	41 * Please update GLOBALS dbase[256] accordingly.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	42 */
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	43 #define DBASE_SIZE 256
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	44 #define MODNAME_LEN 256
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	45
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	46 // Modules flag definations
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	47 #define MOD_ALOADED 0x0001
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	48 #define MOD_BLACKLIST 0x0002
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	49 #define MOD_FNDDEPMOD 0x0004
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	50 #define MOD_NDDEPS 0x0008
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	51
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	52 // dummy interface for debugging.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	53 static void dummy(char *format, ...)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	54 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	55 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	56
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	57 // Current probing modules info
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	58 struct module_s {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	59 uint32_t flags;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	60 char cmdname, name, depent, opts;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	61 struct arg_list rnames, dep;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	62 };
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	63
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	64 // Converts path name FILE to module name.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	65 static char path2mod(char file, char *mod)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	66 {
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	67 int i;
4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	68 char from, lslash;
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	69
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	70 if (!file) return NULL;
4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	71 if (!mod) mod = xmalloc(MODNAME_LEN);
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	72
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	73 lslash = strrchr(file, '/');
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	74 if (!lslash \|\| (lslash == file && !lslash[1])) from = file;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	75 else from = lslash + 1;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	76
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	77 for (i = 0; i < (MODNAME_LEN-1) && from[i] && from[i] != '.'; i++)
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	78 mod[i] = (from[i] == '-') ? '_' : from[i];
4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	79 mod[i] = '\0';
4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	80 return mod;
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	81 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	82
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	83 // Add options in opts from toadd.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	84 static char add_opts(char opts, char *toadd)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	85 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	86 if (toadd) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	87 int optlen = 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	88
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	89 if (opts) optlen = strlen(opts);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	90 opts = xrealloc(opts, optlen + strlen(toadd) + 2);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	91 sprintf(opts + optlen, " %s", toadd);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	92 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	93 return opts;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	94 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	95
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	96 // Remove first element from the list and return it.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	97 static void llist_popme(struct arg_list *head)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	98 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	99 char *data = NULL;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	100 struct arg_list temp = head;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	101
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	102 if (temp) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	103 data = temp->arg;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	104 *head = temp->next;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	105 free(temp);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	106 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	107 return data;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	108 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	109
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	110 // Add new node at the beginning of the list.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	111 static void llist_add(struct arg_list *old, void data)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	112 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	113 struct arg_list *new = xmalloc(sizeof(struct arg_list));
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	114
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	115 new->arg = (char*)data;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	116 new->next = *old;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	117 *old = new;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	118 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	119
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	120 // Add new node at tail of list.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	121 static void llist_add_tail(struct arg_list *head, void data)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	122 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	123 while (head) head = &(head)->next;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	124 *head = xzalloc(sizeof(struct arg_list));
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	125 (head)->arg = (char)data;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	126 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	127
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	128 // Reverse list order.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	129 static struct arg_list llist_rev(struct arg_list list)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	130 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	131 struct arg_list *rev = NULL;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	132
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	133 while (list) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	134 struct arg_list *next = list->next;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	135
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	136 list->next = rev;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	137 rev = list;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	138 list = next;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	139 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	140 return rev;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	141 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	142
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	143 /*
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	144 * Returns struct module_s from the data base if found, NULL otherwise.
1249 b13728c24a58 modprobe: cleanup, incorporate Ashwini's fix for alias loading Isaac Dunham <ibid.ag@gmail.com> parents: 1245 diff changeset	145 * if add - create module entry, add it to data base and return the same mod.
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	146 */
1249 b13728c24a58 modprobe: cleanup, incorporate Ashwini's fix for alias loading Isaac Dunham <ibid.ag@gmail.com> parents: 1245 diff changeset	147 static struct module_s get_mod(char mod, uint8_t add)
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	148 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	149 char name[MODNAME_LEN];
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	150 struct module_s *modentry;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	151 struct arg_list *temp;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	152 unsigned i, hash = 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	153
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	154 path2mod(mod, name);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	155 for (i = 0; name[i]; i++) hash = ((hash*31) + hash) + name[i];
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	156 hash %= DBASE_SIZE;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	157 for (temp = TT.dbase[hash]; temp; temp = temp->next) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	158 modentry = (struct module_s *) temp->arg;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	159 if (!strcmp(modentry->name, name)) return modentry;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	160 }
1249 b13728c24a58 modprobe: cleanup, incorporate Ashwini's fix for alias loading Isaac Dunham <ibid.ag@gmail.com> parents: 1245 diff changeset	161 if (!add) return NULL;
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	162 modentry = xzalloc(sizeof(*modentry));
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	163 modentry->name = xstrdup(name);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	164 llist_add(&TT.dbase[hash], modentry);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	165 return modentry;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	166 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	167
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	168 /*
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	169 * Read a line from file with \ continuation and escape commented line.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	170 * Return the line in allocated string (*li)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	171 */
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	172 static int read_line(FILE fl, char *li)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	173 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	174 char nxtline = NULL, line;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	175 int len, nxtlen, linelen, nxtlinelen;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	176
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	177 while (1) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	178 line = NULL;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	179 linelen = nxtlinelen = 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	180 len = getline(&line, (size_t*)&linelen, fl);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	181 if (len <= 0) return len;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	182 // checking for commented lines.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	183 if (line[0] != '#') break;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	184 free(line);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	185 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	186 for (;;) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	187 if (line[len - 1] == '\n') len--;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	188 // checking line continuation.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	189 if (!len \|\| line[len - 1] != '\\') break;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	190 len--;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	191 nxtlen = getline(&nxtline, (size_t*)&nxtlinelen, fl);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	192 if (nxtlen <= 0) break;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	193 if (linelen < len + nxtlen + 1) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	194 linelen = len + nxtlen + 1;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	195 line = xrealloc(line, linelen);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	196 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	197 memcpy(&line[len], nxtline, nxtlen);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	198 len += nxtlen;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	199 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	200 line[len] = '\0';
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	201 *li = xstrdup(line);
1433 00c20f410c46 Patches to commands for issues reported from static analysis tool. Ashwini Sharma <ak.ashwini1981@gmail.com> parents: 1384 diff changeset	202 free(line);
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	203 if (nxtline) free(nxtline);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	204 return len;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	205 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	206
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	207 /*
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	208 * Action to be taken on all config files in default directories
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	209 * checks for aliases, options, install, remove and blacklist
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	210 */
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	211 static int config_action(struct dirtree *node)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	212 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	213 FILE *fc;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	214 char filename, tokens[3], line, linecp;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	215 struct module_s *modent;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	216 int tcount = 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	217
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	218 if (!dirtree_notdotdot(node)) return 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	219 if (S_ISDIR(node->st.st_mode)) return DIRTREE_RECURSE;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	220
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	221 if (!S_ISREG(node->st.st_mode)) return 0; // process only regular file
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	222 filename = dirtree_path(node, NULL);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	223 if (!(fc = fopen(filename, "r"))) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	224 free(filename);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	225 return 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	226 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	227 for (line = linecp = NULL; read_line(fc, &line) > 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	228 free(line), free(linecp), line = linecp = NULL) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	229 char *tk = NULL;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	230
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	231 if (!strlen(line)) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	232 linecp = xstrdup(line);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	233 for (tk = strtok(linecp, "# \t"), tcount = 0; tk;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	234 tk = strtok(NULL, "# \t"), tcount++) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	235 tokens[tcount] = tk;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	236 if (tcount == 2) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	237 tokens[2] = line + strlen(tokens[0]) + strlen(tokens[1]) + 2;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	238 break;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	239 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	240 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	241 if (!tk) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	242 // process the tokens[0] contains first word of config line.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	243 if (!strcmp(tokens[0], "alias")) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	244 struct arg_list *temp;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	245 char aliase[MODNAME_LEN], *realname;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	246
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	247 if (!tokens[2]) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	248 path2mod(tokens[1], aliase);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	249 for (temp = TT.probes; temp; temp = temp->next) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	250 modent = (struct module_s *) temp->arg;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	251 if (fnmatch(aliase, modent->name, 0)) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	252 realname = path2mod(tokens[2], NULL);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	253 llist_add(&modent->rnames, realname);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	254 if (modent->flags & MOD_NDDEPS) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	255 modent->flags &= ~MOD_NDDEPS;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	256 TT.nudeps--;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	257 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	258 modent = get_mod(realname, 1);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	259 if (!(modent->flags & MOD_NDDEPS)) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	260 modent->flags \|= MOD_NDDEPS;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	261 TT.nudeps++;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	262 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	263 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	264 } else if (!strcmp(tokens[0], "options")) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	265 if (!tokens[2]) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	266 modent = get_mod(tokens[1], 1);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	267 modent->opts = add_opts(modent->opts, tokens[2]);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	268 } else if (!strcmp(tokens[0], "include"))
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	269 dirtree_read(tokens[1], config_action);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	270 else if (!strcmp(tokens[0], "blacklist"))
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	271 get_mod(tokens[1], 1)->flags \|= MOD_BLACKLIST;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	272 else if (!strcmp(tokens[0], "install")) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	273 else if (!strcmp(tokens[0], "remove")) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	274 else error_msg("Invalid option %s found in file %s", tokens[0], filename);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	275 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	276 fclose(fc);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	277 free(filename);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	278 return 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	279 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	280
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	281 // Show matched modules else return -1 on failure.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	282 static int depmode_read_entry(char *cmdname)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	283 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	284 char *line;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	285 int ret = -1;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	286 FILE *fe = xfopen("modules.dep", "r");
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	287
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	288 while (read_line(fe, &line) > 0) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	289 char *tmp = strchr(line, ':');
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	290
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	291 if (tmp) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	292 *tmp = '\0';
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	293 char *name = basename(line);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	294
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	295 tmp = strchr(name, '.');
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	296 if (tmp) *tmp = '\0';
1249 b13728c24a58 modprobe: cleanup, incorporate Ashwini's fix for alias loading Isaac Dunham <ibid.ag@gmail.com> parents: 1245 diff changeset	297 if (!cmdname \|\| !fnmatch(cmdname, name, 0)) {
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	298 if (tmp) *tmp = '.';
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	299 TT.dbg("%s\n", line);
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	300 ret = 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	301 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	302 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	303 free(line);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	304 }
1433 00c20f410c46 Patches to commands for issues reported from static analysis tool. Ashwini Sharma <ak.ashwini1981@gmail.com> parents: 1384 diff changeset	305 fclose(fe);
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	306 return ret;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	307 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	308
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	309 // Finds dependencies for modules from the modules.dep file.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	310 static void find_dep(void)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	311 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	312 char *line = NULL;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	313 struct module_s *mod;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	314 FILE *fe = xfopen("modules.dep", "r");
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	315
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	316 for (; read_line(fe, &line) > 0; free(line)) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	317 char *tmp = strchr(line, ':');
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	318
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	319 if (tmp) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	320 *tmp = '\0';
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	321 mod = get_mod(line, 0);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	322 if (!mod) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	323 if ((mod->flags & MOD_ALOADED) &&
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	324 !(toys.optflags & (FLAG_r \| FLAG_D))) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	325
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	326 mod->flags \|= MOD_FNDDEPMOD;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	327 if ((mod->flags & MOD_NDDEPS) && (!mod->dep)) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	328 TT.nudeps--;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	329 llist_add(&mod->dep, xstrdup(line));
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	330 tmp++;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	331 if (*tmp) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	332 char *tok;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	333
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	334 while ((tok = strsep(&tmp, " \t"))) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	335 if (!*tok) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	336 llist_add_tail(&mod->dep, xstrdup(tok));
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	337 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	338 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	339 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	340 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	341 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	342 fclose(fe);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	343 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	344
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	345 // Remove a module from the Linux Kernel. if !modules does auto remove.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	346 static int rm_mod(char *modules, uint32_t flags)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	347 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	348 if (modules) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	349 int len = strlen(modules);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	350
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	351 if (len > 3 && !strcmp(modules+len-3, ".ko" )) modules[len-3] = 0;
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	352 }
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	353
4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	354 errno = 0;
4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	355 syscall(__NR_delete_module, modules, flags ? flags : O_NONBLOCK\|O_EXCL);
4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	356
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	357 return errno;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	358 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	359
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	360 // Insert module same as insmod implementation.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	361 static int ins_mod(char modules, char flags)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	362 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	363 char *buf = NULL;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	364 int len, res;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	365 int fd = xopen(modules, O_RDONLY);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	366
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	367 len = fdlength(fd);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	368 buf = xmalloc(len);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	369 xreadall(fd, buf, len);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	370 xclose(fd);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	371
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	372 while (flags && strlen(toybuf) + strlen(flags) + 2 < sizeof(toybuf)) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	373 strcat(toybuf, flags);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	374 strcat(toybuf, " ");
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	375 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	376 res = syscall(__NR_init_module, buf, len, toybuf);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	377 if (CFG_TOYBOX_FREE && buf != toybuf) free(buf);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	378 if (res) perror_exit("failed to load %s ", toys.optargs[0]);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	379 return res;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	380 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	381
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	382 // Add module in probes list, if not loaded.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	383 static void add_mod(char *name)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	384 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	385 struct module_s *mod = get_mod(name, 1);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	386
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	387 if (!(toys.optflags & (FLAG_r \| FLAG_D)) && (mod->flags & MOD_ALOADED)) {
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	388 TT.dbg("skipping %s, it is already loaded\n", name);
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	389 return;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	390 }
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	391 TT.dbg("queuing %s\n", name);
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	392 mod->cmdname = name;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	393 mod->flags \|= MOD_NDDEPS;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	394 llist_add_tail(&TT.probes, mod);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	395 TT.nudeps++;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	396 if (!strncmp(mod->name, "symbol:", 7)) TT.symreq = 1;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	397 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	398
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	399 // Parse cmdline options suplied for module.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	400 static char add_cmdopt(char *argv)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	401 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	402 char *opt = xzalloc(1);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	403 int lopt = 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	404
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	405 while (*++argv) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	406 char fmt, var, *val;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	407
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	408 var = *argv;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	409 opt = xrealloc(opt, lopt + 2 + strlen(var) + 2);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	410 // check for key=val or key = val.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	411 fmt = "%.*s%s ";
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	412 for (val = var; val && val != '='; val++);
4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	413 if (val && strchr(++val, ' ')) fmt = "%.s\"%s\" ";
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	414 lopt += sprintf(opt + lopt, fmt, (int) (val - var), var, val);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	415 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	416 return opt;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	417 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	418
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	419 // Probes a single module and loads all its dependencies.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	420 static int go_probe(struct module_s *m)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	421 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	422 int rc = 0, first = 1;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	423
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	424 if (!(m->flags & MOD_FNDDEPMOD)) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	425 if (!(toys.optflags & FLAG_s))
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	426 error_msg("module %s not found in modules.dep", m->name);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	427 return -ENOENT;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	428 }
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	429 TT.dbg("go_prob'ing %s\n", m->name);
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	430 if (!(toys.optflags & FLAG_r)) m->dep = llist_rev(m->dep);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	431
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	432 while (m->dep) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	433 struct module_s *m2;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	434 char fn, options;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	435
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	436 rc = 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	437 fn = llist_popme(&m->dep);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	438 m2 = get_mod(fn, 1);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	439 // are we removing ?
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	440 if (toys.optflags & FLAG_r) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	441 if (m2->flags & MOD_ALOADED) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	442 if ((rc = rm_mod(m2->name, O_EXCL))) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	443 if (first) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	444 perror_msg("can't unload module %s", m2->name);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	445 break;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	446 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	447 } else m2->flags &= ~MOD_ALOADED;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	448 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	449 first = 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	450 continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	451 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	452 options = m2->opts;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	453 m2->opts = NULL;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	454 if (m == m2) options = add_opts(options, TT.cmdopts);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	455
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	456 // are we only checking dependencies ?
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	457 if (toys.optflags & FLAG_D) {
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	458 TT.dbg(options ? "insmod %s %s\n" : "insmod %s\n", fn, options);
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	459 if (options) free(options);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	460 continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	461 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	462 if (m2->flags & MOD_ALOADED) {
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	463 TT.dbg("%s is already loaded, skipping\n", fn);
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	464 if (options) free(options);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	465 continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	466 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	467 // none of above is true insert the module.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	468 rc = ins_mod(fn, options);
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	469 TT.dbg("loaded %s '%s', rc:%d\n", fn, options, rc);
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	470 if (rc == EEXIST) rc = 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	471 if (options) free(options);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	472 if (rc) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	473 perror_msg("can't load module %s (%s)", m2->name, fn);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	474 break;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	475 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	476 m2->flags \|= MOD_ALOADED;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	477 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	478 return rc;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	479 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	480
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	481 void modprobe_main(void)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	482 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	483 struct utsname uts;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	484 char *argv = toys.optargs, procline = NULL;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	485 FILE *fs;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	486 struct module_s *module;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	487 unsigned flags = toys.optflags;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	488
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	489 TT.dbg = (flags & FLAG_v) ? xprintf : dummy;
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	490
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	491 if ((toys.optc < 1) && (((flags & FLAG_r) && (flags & FLAG_l))
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	492 \|\|(!((flags & FLAG_r)\|\|(flags & FLAG_l)))))
4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	493 {
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	494 toys.exithelp++;
1249 b13728c24a58 modprobe: cleanup, incorporate Ashwini's fix for alias loading Isaac Dunham <ibid.ag@gmail.com> parents: 1245 diff changeset	495 error_exit("bad syntax");
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	496 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	497 // Check for -r flag without arg if yes then do auto remove.
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	498 if ((flags & FLAG_r) && !toys.optc) {
4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	499 if (rm_mod(NULL, O_NONBLOCK \| O_EXCL)) perror_exit("rmmod");
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	500 return;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	501 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	502
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	503 // change directory to /lib/modules/<release>/
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	504 xchdir("/lib/modules");
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	505 uname(&uts);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	506 xchdir(uts.release);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	507
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	508 // modules.dep processing for dependency check.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	509 if (flags & FLAG_l) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	510 if (depmode_read_entry(toys.optargs[0])) error_exit("no module found.");
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	511 return;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	512 }
1249 b13728c24a58 modprobe: cleanup, incorporate Ashwini's fix for alias loading Isaac Dunham <ibid.ag@gmail.com> parents: 1245 diff changeset	513 // Read /proc/modules to get loaded modules.
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	514 fs = xfopen("/proc/modules", "r");
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	515
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	516 while (read_line(fs, &procline) > 0) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	517 *(strchr(procline, ' ')) = '\0';
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	518 get_mod(procline, 1)->flags = MOD_ALOADED;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	519 free(procline);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	520 procline = NULL;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	521 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	522 fclose(fs);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	523 if ((flags & FLAG_a) \|\| (flags & FLAG_r)) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	524 do {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	525 add_mod(*argv++);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	526 } while (*argv);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	527 } else {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	528 add_mod(argv[0]);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	529 TT.cmdopts = add_cmdopt(argv);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	530 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	531 if (!TT.probes) {
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	532 TT.dbg("All modules loaded\n");
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	533 return;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	534 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	535 dirtree_read("/etc/modprobe.conf", config_action);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	536 dirtree_read("/etc/modprobe.d", config_action);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	537 if (TT.symreq) dirtree_read("modules.symbols", config_action);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	538 if (TT.nudeps) dirtree_read("modules.alias", config_action);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	539 find_dep();
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	540 while ((module = llist_popme(&TT.probes))) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	541 if (!module->rnames) {
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	542 TT.dbg("probing by module name\n");
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	543 /* This is not an alias. Literal names are blacklisted
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	544 * only if '-b' is given.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	545 */
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	546 if (!(flags & FLAG_b) \|\| !(module->flags & MOD_BLACKLIST))
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	547 go_probe(module);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	548 continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	549 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	550 do { // Probe all real names for the alias.
1249 b13728c24a58 modprobe: cleanup, incorporate Ashwini's fix for alias loading Isaac Dunham <ibid.ag@gmail.com> parents: 1245 diff changeset	551 char real = ((struct arg_list)llist_pop(&module->rnames))->arg;
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	552 struct module_s *m2 = get_mod(real, 0);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	553
1384 4a7438307429 minor cleanup: move a global variable into GLOBALS(), inline strchr_null(), some whitespace and bracket cleanups. Rob Landley <rob@landley.net> parents: 1249 diff changeset	554 TT.dbg("probing alias %s by realname %s\n", module->name, real);
1245 7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	555 if (!m2) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	556 if (!(m2->flags & MOD_BLACKLIST)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	557 && (!(m2->flags & MOD_ALOADED) \|\| (flags & (FLAG_r \| FLAG_D))))
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	558 go_probe(m2);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	559 free(real);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	560 } while (module->rnames);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	561 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	562 }

Mercurial > hg > toybox

annotate toys/pending/modprobe.c @ 1433:00c20f410c46 draft