Mercurial > hg > toybox

annotate toys/pending/modprobe.c @ 1265:0ecfaa7022e8 draft

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usage: is lower case (the help generator looks for that, might as well be consistent).
author Rob Landley <rob@landley.net>
date Wed, 23 Apr 2014 08:37:07 -0500
parents b13728c24a58
children 4a7438307429
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1245
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
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1 /* modprobe.c - modprobe utility.
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2 *
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3 * Copyright 2012 Madhur Verma <mad.flexi@gmail.com>
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4 * Copyright 2013 Kyungwan Han <asura321@gmail.com>
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5 *
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6 * No Standard.
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7
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8 USE_MODPROBE(NEWTOY(modprobe, "alrqvsDb", TOYFLAG_SBIN))
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9
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10 config MODPROBE
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11 bool "modprobe"
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12 default n
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13 help
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14 usage: modprobe [-alrqvsDb] MODULE [symbol=value][...]
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15
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
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16 modprobe utility - inserts modules and dependencies.
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17
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18 -a Load multiple MODULEs
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19 -l List (MODULE is a pattern)
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20 -r Remove MODULE (stacks) or do autoclean
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21 -q Quiet
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22 -v Verbose
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23 -s Log to syslog
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24 -D Show dependencies
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25 -b Apply blacklist to module names too
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26 */
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27 #define FOR_modprobe
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28 #include "toys.h"
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29 #include <sys/syscall.h>
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30
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31 GLOBALS(
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32 struct arg_list *probes;
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33 struct arg_list *dbase[256];
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34 char *cmdopts;
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35 int nudeps;
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36 uint8_t symreq;
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37 )
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38
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39 /* Note: if "#define DBASE_SIZE" modified,
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40 * Please update GLOBALS dbase[256] accordingly.
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41 */
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42 #define DBASE_SIZE 256
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43 #define MODNAME_LEN 256
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44
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45 // Modules flag definations
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46 #define MOD_ALOADED 0x0001
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47 #define MOD_BLACKLIST 0x0002
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48 #define MOD_FNDDEPMOD 0x0004
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49 #define MOD_NDDEPS 0x0008
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50
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51 static void (*dbg)(char *format, ...);
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52 // dummy interface for debugging.
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53 static void dummy(char *format, ...)
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54 {
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55 }
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56
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57 // Current probing modules info
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58 struct module_s {
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59 uint32_t flags;
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60 char *cmdname, *name, *depent, *opts;
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61 struct arg_list *rnames, *dep;
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62 };
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63
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64 // Converts path name FILE to module name.
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65 static char *path2mod(char *file, char *mod)
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66 {
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67 int i;
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68 char *from, *lslash;
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69
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70 if (!file) return NULL;
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71 if (!mod) mod = xmalloc(MODNAME_LEN);
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72
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73 lslash = strrchr(file, '/');
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74 if (!lslash || (lslash == file && !lslash[1])) from = file;
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75 else from = lslash + 1;
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76
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77 for (i = 0; i < (MODNAME_LEN-1) && from[i] && from[i] != '.'; i++)
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78 mod[i] = (from[i] == '-') ? '_' : from[i];
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79 mod[i] = '\0';
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80 return mod;
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81 }
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82
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83 // locate character in string.
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84 static char *strchr_nul(char *s, int c)
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85 {
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86 while(*s != '\0' && *s != c) s++;
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87 return (char*)s;
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88 }
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89
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90 // Add options in opts from toadd.
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91 static char *add_opts(char *opts, char *toadd)
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92 {
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93 if (toadd) {
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94 int optlen = 0;
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95
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96 if (opts) optlen = strlen(opts);
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97 opts = xrealloc(opts, optlen + strlen(toadd) + 2);
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98 sprintf(opts + optlen, " %s", toadd);
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99 }
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100 return opts;
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101 }
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102
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103 // Remove first element from the list and return it.
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104 static void *llist_popme(struct arg_list **head)
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105 {
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106 char *data = NULL;
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107 struct arg_list *temp = *head;
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108
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109 if (temp) {
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110 data = temp->arg;
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111 *head = temp->next;
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112 free(temp);
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113 }
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114 return data;
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115 }
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116
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117 // Add new node at the beginning of the list.
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118 static void llist_add(struct arg_list **old, void *data)
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119 {
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120 struct arg_list *new = xmalloc(sizeof(struct arg_list));
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121
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122 new->arg = (char*)data;
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123 new->next = *old;
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124 *old = new;
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125 }
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126
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127 // Add new node at tail of list.
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128 static void llist_add_tail(struct arg_list **head, void *data)
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129 {
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130 while (*head) head = &(*head)->next;
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131 *head = xzalloc(sizeof(struct arg_list));
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132 (*head)->arg = (char*)data;
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133 }
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134
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135 // Reverse list order.
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136 static struct arg_list *llist_rev(struct arg_list *list)
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137 {
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138 struct arg_list *rev = NULL;
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139
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140 while (list) {
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141 struct arg_list *next = list->next;
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142
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143 list->next = rev;
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144 rev = list;
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145 list = next;
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146 }
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diff changeset
147 return rev;
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
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
150 /*
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
151 * 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
152 * 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
153 */
1249
b13728c24a58 modprobe: cleanup, incorporate Ashwini's fix for alias loading
Isaac Dunham <ibid.ag@gmail.com>
parents: 1245
diff changeset
154 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
155 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
156 char name[MODNAME_LEN];
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
157 struct module_s *modentry;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
158 struct arg_list *temp;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
159 unsigned i, hash = 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
160
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
161 path2mod(mod, name);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
162 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
163 hash %= DBASE_SIZE;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
164 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
165 modentry = (struct module_s *) temp->arg;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
166 if (!strcmp(modentry->name, name)) return modentry;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
167 }
1249
b13728c24a58 modprobe: cleanup, incorporate Ashwini's fix for alias loading
Isaac Dunham <ibid.ag@gmail.com>
parents: 1245
diff changeset
168 if (!add) return NULL;
1245
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
169 modentry = xzalloc(sizeof(*modentry));
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
170 modentry->name = xstrdup(name);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
171 llist_add(&TT.dbase[hash], modentry);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
172 return modentry;
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
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
175 /*
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
176 * 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
177 * Return the line in allocated string (*li)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
178 */
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
179 static int read_line(FILE *fl, char **li)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
180 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
181 char *nxtline = NULL, *line;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
182 int len, nxtlen, linelen, nxtlinelen;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
183
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
184 while (1) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
185 line = NULL;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
186 linelen = nxtlinelen = 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
187 len = getline(&line, (size_t*)&linelen, fl);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
188 if (len <= 0) return len;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
189 // checking for commented lines.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
190 if (line[0] != '#') break;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
191 free(line);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
192 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
193 for (;;) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
194 if (line[len - 1] == '\n') len--;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
195 // checking line continuation.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
196 if (!len || line[len - 1] != '\\') break;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
197 len--;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
198 nxtlen = getline(&nxtline, (size_t*)&nxtlinelen, fl);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
199 if (nxtlen <= 0) break;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
200 if (linelen < len + nxtlen + 1) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
201 linelen = len + nxtlen + 1;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
202 line = xrealloc(line, linelen);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
203 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
204 memcpy(&line[len], nxtline, nxtlen);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
205 len += nxtlen;
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 line[len] = '\0';
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
208 *li = xstrdup(line);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
209 if (line) free(line);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
210 if (nxtline) free(nxtline);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
211 return len;
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
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
214 /*
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
215 * 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
216 * checks for aliases, options, install, remove and blacklist
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 static int config_action(struct dirtree *node)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
219 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
220 FILE *fc;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
221 char *filename, *tokens[3], *line, *linecp;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
222 struct module_s *modent;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
223 int tcount = 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
224
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
225 if (!dirtree_notdotdot(node)) return 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
226 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
227
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
228 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
229 filename = dirtree_path(node, NULL);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
230 if (!(fc = fopen(filename, "r"))) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
231 free(filename);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
232 return 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
233 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
234 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
235 free(line), free(linecp), line = linecp = NULL) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
236 char *tk = NULL;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
237
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
238 if (!strlen(line)) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
239 linecp = xstrdup(line);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
240 for (tk = strtok(linecp, "# \t"), tcount = 0; tk;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
241 tk = strtok(NULL, "# \t"), tcount++) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
242 tokens[tcount] = tk;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
243 if (tcount == 2) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
244 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
245 break;
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 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
248 if (!tk) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
249 // 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
250 if (!strcmp(tokens[0], "alias")) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
251 struct arg_list *temp;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
252 char aliase[MODNAME_LEN], *realname;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
253
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
254 if (!tokens[2]) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
255 path2mod(tokens[1], aliase);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
256 for (temp = TT.probes; temp; temp = temp->next) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
257 modent = (struct module_s *) temp->arg;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
258 if (fnmatch(aliase, modent->name, 0)) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
259 realname = path2mod(tokens[2], NULL);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
260 llist_add(&modent->rnames, realname);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
261 if (modent->flags & MOD_NDDEPS) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
262 modent->flags &= ~MOD_NDDEPS;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
263 TT.nudeps--;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
264 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
265 modent = get_mod(realname, 1);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
266 if (!(modent->flags & MOD_NDDEPS)) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
267 modent->flags |= MOD_NDDEPS;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
268 TT.nudeps++;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
269 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
270 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
271 } else if (!strcmp(tokens[0], "options")) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
272 if (!tokens[2]) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
273 modent = get_mod(tokens[1], 1);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
274 modent->opts = add_opts(modent->opts, tokens[2]);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
275 } else if (!strcmp(tokens[0], "include"))
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
276 dirtree_read(tokens[1], config_action);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
277 else if (!strcmp(tokens[0], "blacklist"))
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
278 get_mod(tokens[1], 1)->flags |= MOD_BLACKLIST;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
279 else if (!strcmp(tokens[0], "install")) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
280 else if (!strcmp(tokens[0], "remove")) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
281 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
282 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
283 fclose(fc);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
284 free(filename);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
285 return 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
286 }
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 // Show matched modules else return -1 on failure.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
289 static int depmode_read_entry(char *cmdname)
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 char *line;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
292 int ret = -1;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
293 FILE *fe = xfopen("modules.dep", "r");
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 while (read_line(fe, &line) > 0) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
296 char *tmp = strchr(line, ':');
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
297
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
298 if (tmp) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
299 *tmp = '\0';
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
300 char *name = basename(line);
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 tmp = strchr(name, '.');
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
303 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
304 if (!cmdname || !fnmatch(cmdname, name, 0)) {
1245
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
305 if (tmp) *tmp = '.';
1249
b13728c24a58 modprobe: cleanup, incorporate Ashwini's fix for alias loading
Isaac Dunham <ibid.ag@gmail.com>
parents: 1245
diff changeset
306 dbg("%s\n", line);
1245
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
307 ret = 0;
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 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
310 free(line);
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 return ret;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
313 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
314
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
315 // 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
316 static void find_dep(void)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
317 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
318 char *line = NULL;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
319 struct module_s *mod;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
320 FILE *fe = xfopen("modules.dep", "r");
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
321
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
322 for (; read_line(fe, &line) > 0; free(line)) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
323 char *tmp = strchr(line, ':');
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
324
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
325 if (tmp) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
326 *tmp = '\0';
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
327 mod = get_mod(line, 0);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
328 if (!mod) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
329 if ((mod->flags & MOD_ALOADED) &&
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
330 !(toys.optflags & (FLAG_r | FLAG_D))) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
331
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
332 mod->flags |= MOD_FNDDEPMOD;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
333 if ((mod->flags & MOD_NDDEPS) && (!mod->dep)) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
334 TT.nudeps--;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
335 llist_add(&mod->dep, xstrdup(line));
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
336 tmp++;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
337 if (*tmp) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
338 char *tok;
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 while ((tok = strsep(&tmp, " \t"))) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
341 if (!*tok) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
342 llist_add_tail(&mod->dep, xstrdup(tok));
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 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
346 }
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 fclose(fe);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
349 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
350
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
351 // 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
352 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
353 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
354 errno = 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
355 if (modules) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
356 int len = strlen(modules);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
357
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
358 if (len > 3 && !strcmp(&modules[len-3], ".ko" )) modules[len-3] = 0;
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 if (!flags) flags = O_NONBLOCK|O_EXCL;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
361 syscall(__NR_delete_module, modules, flags);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
362 return errno;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
363 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
364
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
365 // Insert module same as insmod implementation.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
366 static int ins_mod(char *modules, char *flags)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
367 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
368 char *buf = NULL;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
369 int len, res;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
370 int fd = xopen(modules, O_RDONLY);
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 len = fdlength(fd);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
373 buf = xmalloc(len);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
374 xreadall(fd, buf, len);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
375 xclose(fd);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
376
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
377 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
378 strcat(toybuf, flags);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
379 strcat(toybuf, " ");
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 res = syscall(__NR_init_module, buf, len, toybuf);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
382 if (CFG_TOYBOX_FREE && buf != toybuf) free(buf);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
383 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
384 return res;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
385 }
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 // Add module in probes list, if not loaded.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
388 static void add_mod(char *name)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
389 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
390 struct module_s *mod = get_mod(name, 1);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
391
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
392 if (!(toys.optflags & (FLAG_r | FLAG_D)) && (mod->flags & MOD_ALOADED)) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
393 dbg("skipping %s, it is already loaded\n", name);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
394 return;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
395 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
396 dbg("queuing %s\n", name);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
397 mod->cmdname = name;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
398 mod->flags |= MOD_NDDEPS;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
399 llist_add_tail(&TT.probes, mod);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
400 TT.nudeps++;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
401 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
402 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
403
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
404 // Parse cmdline options suplied for module.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
405 static char *add_cmdopt(char **argv)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
406 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
407 char *opt = xzalloc(1);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
408 int lopt = 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
409
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
410 while (*++argv) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
411 char *fmt, *var, *val;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
412
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
413 var = *argv;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
414 opt = xrealloc(opt, lopt + 2 + strlen(var) + 2);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
415 // check for key=val or key = val.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
416 fmt = "%.*s%s ";
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
417 val = strchr_nul(var, '=');
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
418 if (*val) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
419 val++;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
420 if (strchr(val, ' ')) fmt = "%.*s\"%s\" ";
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 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
423 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
424 return opt;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
425 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
426
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
427 // 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
428 static int go_probe(struct module_s *m)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
429 {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
430 int rc = 0, first = 1;
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 if (!(m->flags & MOD_FNDDEPMOD)) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
433 if (!(toys.optflags & FLAG_s))
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
434 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
435 return -ENOENT;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
436 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
437 dbg("go_prob'ing %s\n", m->name);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
438 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
439
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
440 while (m->dep) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
441 struct module_s *m2;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
442 char *fn, *options;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
443
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
444 rc = 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
445 fn = llist_popme(&m->dep);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
446 m2 = get_mod(fn, 1);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
447 // are we removing ?
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
448 if (toys.optflags & FLAG_r) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
449 if (m2->flags & MOD_ALOADED) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
450 if ((rc = rm_mod(m2->name, O_EXCL))) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
451 if (first) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
452 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
453 break;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
454 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
455 } else m2->flags &= ~MOD_ALOADED;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
456 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
457 first = 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
458 continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
459 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
460 options = m2->opts;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
461 m2->opts = NULL;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
462 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
463
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
464 // are we only checking dependencies ?
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
465 if (toys.optflags & FLAG_D) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
466 dbg(options ? "insmod %s %s\n" : "insmod %s\n", fn, options);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
467 if (options) free(options);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
468 continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
469 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
470 if (m2->flags & MOD_ALOADED) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
471 dbg("%s is already loaded, skipping\n", fn);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
472 if (options) free(options);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
473 continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
474 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
475 // none of above is true insert the module.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
476 rc = ins_mod(fn, options);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
477 dbg("loaded %s '%s', rc:%d\n", fn, options, rc);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
478 if (rc == EEXIST) rc = 0;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
479 if (options) free(options);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
480 if (rc) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
481 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
482 break;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
483 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
484 m2->flags |= MOD_ALOADED;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
485 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
486 return rc;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
487 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
488
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
489 void modprobe_main(void)
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 struct utsname uts;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
492 char **argv = toys.optargs, *procline = NULL;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
493 FILE *fs;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
494 struct module_s *module;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
495 unsigned flags = toys.optflags;
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 dbg = dummy;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
498 if (flags & FLAG_v) dbg = xprintf;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
499
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
500 if ((toys.optc < 1) && (((flags & FLAG_r) && (flags & FLAG_l))
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
501 ||(!((flags & FLAG_r)||(flags & FLAG_l))))) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
502 toys.exithelp++;
1249
b13728c24a58 modprobe: cleanup, incorporate Ashwini's fix for alias loading
Isaac Dunham <ibid.ag@gmail.com>
parents: 1245
diff changeset
503 error_exit("bad syntax");
1245
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
504 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
505 // Check for -r flag without arg if yes then do auto remove.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
506 if ((flags & FLAG_r) && (!toys.optc)) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
507 if (rm_mod(NULL, O_NONBLOCK | O_EXCL) != 0) perror_exit("rmmod");
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
508 return;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
509 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
510
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
511 // change directory to /lib/modules/<release>/
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
512 xchdir("/lib/modules");
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
513 uname(&uts);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
514 xchdir(uts.release);
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 // modules.dep processing for dependency check.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
517 if (flags & FLAG_l) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
518 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
519 return;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
520 }
1249
b13728c24a58 modprobe: cleanup, incorporate Ashwini's fix for alias loading
Isaac Dunham <ibid.ag@gmail.com>
parents: 1245
diff changeset
521 // Read /proc/modules to get loaded modules.
1245
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
522 fs = xfopen("/proc/modules", "r");
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
523
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
524 while (read_line(fs, &procline) > 0) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
525 *(strchr(procline, ' ')) = '\0';
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
526 get_mod(procline, 1)->flags = MOD_ALOADED;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
527 free(procline);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
528 procline = NULL;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
529 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
530 fclose(fs);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
531 if ((flags & FLAG_a) || (flags & FLAG_r)) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
532 do {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
533 add_mod(*argv++);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
534 } while (*argv);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
535 } else {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
536 add_mod(argv[0]);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
537 TT.cmdopts = add_cmdopt(argv);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
538 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
539 if (!TT.probes) {
1249
b13728c24a58 modprobe: cleanup, incorporate Ashwini's fix for alias loading
Isaac Dunham <ibid.ag@gmail.com>
parents: 1245
diff changeset
540 dbg("All modules loaded\n");
1245
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
541 return;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
542 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
543 dirtree_read("/etc/modprobe.conf", config_action);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
544 dirtree_read("/etc/modprobe.d", config_action);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
545 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
546 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
547 find_dep();
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
548 while ((module = llist_popme(&TT.probes))) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
549 if (!module->rnames) {
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
550 dbg("probing by module name\n");
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
551 /* 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
552 * only if '-b' is given.
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
553 */
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
554 if (!(flags & FLAG_b) || !(module->flags & MOD_BLACKLIST))
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
555 go_probe(module);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
556 continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
557 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
558 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
559 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
560 struct module_s *m2 = get_mod(real, 0);
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 dbg("probing alias %s by realname %s\n", module->name, real);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
563 if (!m2) continue;
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
564 if (!(m2->flags & MOD_BLACKLIST)
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
565 && (!(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
566 go_probe(m2);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
567 free(real);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
568 } while (module->rnames);
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
569 }
7b3c1238380a Modprobe from Madhur Verma and Kyungwan Han.
Rob Landley <rob@landley.net>
parents:
diff changeset
570 }