diff options
Diffstat (limited to 'udev_rules.c')
| -rw-r--r-- | udev_rules.c | 148 |
1 files changed, 143 insertions, 5 deletions
diff --git a/udev_rules.c b/udev_rules.c index 069dec7d04..6f82fac841 100644 --- a/udev_rules.c +++ b/udev_rules.c @@ -474,6 +474,21 @@ static int match_rule(struct udevice *udev, struct udev_rule *rule, { struct sysfs_device *parent_device = sysfs_device; + if (rule->action_operation != KEY_OP_UNSET) { + dbg("check for " KEY_ACTION " rule->action='%s' udev->action='%s'", + rule->action, udev->action); + if (strcmp_pattern(rule->action, udev->action) != 0) { + dbg(KEY_ACTION " is not matching"); + if (rule->action_operation != KEY_OP_NOMATCH) + goto exit; + } else { + dbg(KEY_ACTION " matches"); + if (rule->action_operation == KEY_OP_NOMATCH) + goto exit; + } + dbg(KEY_ACTION " key is true"); + } + if (rule->kernel_operation != KEY_OP_UNSET) { dbg("check for " KEY_KERNEL " rule->kernel='%s' udev_kernel_name='%s'", rule->kernel, udev->kernel_name); @@ -716,12 +731,17 @@ int udev_rules_get_name(struct udevice *udev, struct sysfs_class_device *class_d list_for_each_entry(rule, &udev_rule_list, node) { dbg("process rule"); if (match_rule(udev, rule, class_dev, sysfs_device) == 0) { + if (udev->name[0] != '\0' && rule->name[0] != '\0') { + dbg("node name already set, rule ignored"); + continue; + } /* apply options */ if (rule->ignore_device) { info("configured rule in '%s[%i]' applied, '%s' is ignored", rule->config_file, rule->config_line, udev->kernel_name); - return -1; + udev->ignore_device = 1; + return 0; } if (rule->ignore_remove) { udev->ignore_remove = 1; @@ -773,7 +793,7 @@ int udev_rules_get_name(struct udevice *udev, struct sysfs_class_device *class_d name_list_add(&udev->symlink_list, pos, 0); } - /* rule matches */ + /* set name, later rules with name set will be ignored */ if (rule->name[0] != '\0') { info("configured rule in '%s[%i]' applied, '%s' becomes '%s'", rule->config_file, rule->config_line, udev->kernel_name, rule->name); @@ -786,20 +806,25 @@ int udev_rules_get_name(struct udevice *udev, struct sysfs_class_device *class_d if (udev->type != DEV_NET) dbg("name, '%s' is going to have owner='%s', group='%s', mode=%#o partitions=%i", udev->name, udev->owner, udev->group, udev->mode, udev->partitions); + } - break; + if (rule->run[0] != '\0') { + char program[PATH_SIZE]; + + strlcpy(program, rule->run, sizeof(program)); + apply_format(udev, program, sizeof(program), class_dev, sysfs_device); + dbg("add run '%s'", program); + name_list_add(&udev->run_list, program, 0); } if (rule->last_rule) { dbg("last rule to be applied"); break; } - } } if (udev->name[0] == '\0') { - /* no rule matched, so we use the kernel name */ strlcpy(udev->name, udev->kernel_name, sizeof(udev->name)); info("no rule found, use kernel name '%s'", udev->name); } @@ -812,3 +837,116 @@ int udev_rules_get_name(struct udevice *udev, struct sysfs_class_device *class_d return 0; } + +int udev_rules_get_run(struct udevice *udev) +{ + struct udev_rule *rule; + char program[PATH_SIZE]; + + /* look for a matching rule to apply */ + list_for_each_entry(rule, &udev_rule_list, node) { + dbg("process rule"); + + if (rule->run[0] == '\0') + continue; + + if (rule->name[0] != '\0' || rule->symlink[0] != '\0' || + rule->mode != 0000 || rule->owner[0] != '\0' || rule->group[0] != '\0') { + dbg("skip rule that names a device"); + continue; + } + + if (rule->action_operation != KEY_OP_UNSET) { + dbg("check for " KEY_ACTION " rule->action='%s' udev->action='%s'", + rule->action, udev->action); + if (strcmp_pattern(rule->action, udev->action) != 0) { + dbg(KEY_ACTION " is not matching"); + if (rule->action_operation != KEY_OP_NOMATCH) + continue; + } else { + dbg(KEY_ACTION " matches"); + if (rule->action_operation == KEY_OP_NOMATCH) + continue; + } + dbg(KEY_ACTION " key is true"); + } + + if (rule->kernel_operation != KEY_OP_UNSET) { + dbg("check for " KEY_KERNEL " rule->kernel='%s' udev->kernel_name='%s'", + rule->kernel, udev->kernel_name); + if (strcmp_pattern(rule->kernel, udev->kernel_name) != 0) { + dbg(KEY_KERNEL " is not matching"); + if (rule->kernel_operation != KEY_OP_NOMATCH) + continue; + } else { + dbg(KEY_KERNEL " matches"); + if (rule->kernel_operation == KEY_OP_NOMATCH) + continue; + } + dbg(KEY_KERNEL " key is true"); + } + + if (rule->subsystem_operation != KEY_OP_UNSET) { + dbg("check for " KEY_SUBSYSTEM " rule->subsystem='%s' udev->subsystem='%s'", + rule->subsystem, udev->subsystem); + if (strcmp_pattern(rule->subsystem, udev->subsystem) != 0) { + dbg(KEY_SUBSYSTEM " is not matching"); + if (rule->subsystem_operation != KEY_OP_NOMATCH) + continue; + } else { + dbg(KEY_SUBSYSTEM " matches"); + if (rule->subsystem_operation == KEY_OP_NOMATCH) + continue; + } + dbg(KEY_SUBSYSTEM " key is true"); + } + + if (rule->env_pair_count) { + int i; + + dbg("check for " KEY_ENV " pairs"); + for (i = 0; i < rule->env_pair_count; i++) { + struct key_pair *pair; + const char *value; + + pair = &rule->env_pair[i]; + value = getenv(pair->name); + if (!value) { + dbg(KEY_ENV "{'%s'} is not found", pair->name); + continue; + } + if (strcmp_pattern(pair->value, value) != 0) { + dbg(KEY_ENV "{'%s'} is not matching", pair->name); + if (pair->operation != KEY_OP_NOMATCH) + continue; + } else { + dbg(KEY_ENV "{'%s'} matches", pair->name); + if (pair->operation == KEY_OP_NOMATCH) + continue; + } + } + dbg(KEY_ENV " key is true"); + } + + /* rule matches */ + + if (rule->ignore_device) { + info("configured rule in '%s[%i]' applied, '%s' is ignored", + rule->config_file, rule->config_line, udev->kernel_name); + udev->ignore_device = 1; + return 0; + } + + strlcpy(program, rule->run, sizeof(program)); + apply_format(udev, program, sizeof(program), NULL, NULL); + dbg("add run '%s'", program); + name_list_add(&udev->run_list, program, 0); + + if (rule->last_rule) { + dbg("last rule to be applied"); + break; + } + } + + return 0; +} |