X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=udev%2Fudev-rules.c;h=eb73221fa9026135847b9d60353bce30bf6fdf8d;hb=6d80a7e83f55c7319d1cb9b0a9910a005b2f4103;hp=092ddcdc25360cf30f2d591715736748ebec3533;hpb=081be002eae9bc7fc03dbfd7b99b4d28a7c98f9d;p=elogind.git diff --git a/udev/udev-rules.c b/udev/udev-rules.c index 092ddcdc2..eb73221fa 100644 --- a/udev/udev-rules.c +++ b/udev/udev-rules.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2003-2009 Kay Sievers + * Copyright (C) 2003-2010 Kay Sievers * Copyright (C) 2008 Alan Jenkins * * This program is free software: you can redistribute it and/or modify @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -124,6 +125,7 @@ enum token_type { TK_M_DEVLINK, /* val */ TK_M_NAME, /* val */ TK_M_ENV, /* val, attr */ + TK_M_TAG, /* val */ TK_M_SUBSYSTEM, /* val */ TK_M_DRIVER, /* val */ TK_M_WAITFOR, /* val */ @@ -140,15 +142,14 @@ enum token_type { TK_M_PROGRAM, /* val */ TK_M_IMPORT_FILE, /* val */ TK_M_IMPORT_PROG, /* val */ + TK_M_IMPORT_DB, /* val */ TK_M_IMPORT_PARENT, /* val */ TK_M_RESULT, /* val */ TK_M_MAX, - TK_A_IGNORE_DEVICE, TK_A_STRING_ESCAPE_NONE, TK_A_STRING_ESCAPE_REPLACE, TK_A_INOTIFY_WATCH, /* int */ - TK_A_NUM_FAKE_PART, /* int */ TK_A_DEVLINK_PRIO, /* int */ TK_A_OWNER, /* val */ TK_A_GROUP, /* val */ @@ -157,10 +158,10 @@ enum token_type { TK_A_GROUP_ID, /* gid_t */ TK_A_MODE_ID, /* mode_t */ TK_A_ENV, /* val, attr */ + TK_A_TAG, /* val */ TK_A_NAME, /* val */ TK_A_DEVLINK, /* val */ TK_A_EVENT_TIMEOUT, /* int */ - TK_A_IGNORE_REMOVE, TK_A_ATTR, /* val, attr */ TK_A_RUN, /* val, bool */ TK_A_GOTO, /* size_t */ @@ -195,7 +196,6 @@ struct token { mode_t mode; uid_t uid; gid_t gid; - int num_fake_part; int devlink_prio; int event_timeout; int watch; @@ -255,6 +255,7 @@ static const char *token_str(enum token_type type) [TK_M_DEVLINK] = "M DEVLINK", [TK_M_NAME] = "M NAME", [TK_M_ENV] = "M ENV", + [TK_M_TAG] = "M TAG", [TK_M_SUBSYSTEM] = "M SUBSYSTEM", [TK_M_DRIVER] = "M DRIVER", [TK_M_WAITFOR] = "M WAITFOR", @@ -271,15 +272,14 @@ static const char *token_str(enum token_type type) [TK_M_PROGRAM] = "M PROGRAM", [TK_M_IMPORT_FILE] = "M IMPORT_FILE", [TK_M_IMPORT_PROG] = "M IMPORT_PROG", + [TK_M_IMPORT_DB] = "M IMPORT_DB", [TK_M_IMPORT_PARENT] = "M IMPORT_PARENT", [TK_M_RESULT] = "M RESULT", [TK_M_MAX] = "M MAX", - [TK_A_IGNORE_DEVICE] = "A IGNORE_DEVICE", [TK_A_STRING_ESCAPE_NONE] = "A STRING_ESCAPE_NONE", [TK_A_STRING_ESCAPE_REPLACE] = "A STRING_ESCAPE_REPLACE", [TK_A_INOTIFY_WATCH] = "A INOTIFY_WATCH", - [TK_A_NUM_FAKE_PART] = "A NUM_FAKE_PART", [TK_A_DEVLINK_PRIO] = "A DEVLINK_PRIO", [TK_A_OWNER] = "A OWNER", [TK_A_GROUP] = "A GROUP", @@ -288,10 +288,10 @@ static const char *token_str(enum token_type type) [TK_A_GROUP_ID] = "A GROUP_ID", [TK_A_MODE_ID] = "A MODE_ID", [TK_A_ENV] = "A ENV", + [TK_A_TAG] = "A ENV", [TK_A_NAME] = "A NAME", [TK_A_DEVLINK] = "A DEVLINK", [TK_A_EVENT_TIMEOUT] = "A EVENT_TIMEOUT", - [TK_A_IGNORE_REMOVE] = "A IGNORE_REMOVE", [TK_A_ATTR] = "A ATTR", [TK_A_RUN] = "A RUN", [TK_A_GOTO] = "A GOTO", @@ -338,6 +338,7 @@ static void dump_token(struct udev_rules *rules, struct token *token) case TK_M_PROGRAM: case TK_M_IMPORT_FILE: case TK_M_IMPORT_PROG: + case TK_M_IMPORT_DB: case TK_M_IMPORT_PARENT: case TK_M_RESULT: case TK_A_NAME: @@ -357,10 +358,12 @@ static void dump_token(struct udev_rules *rules, struct token *token) dbg(rules->udev, "%s %s '%s' '%s'(%s)\n", token_str(type), operation_str(op), attr, value, string_glob_str(glob)); break; - case TK_A_IGNORE_DEVICE: + case TK_M_TAG: + case TK_A_TAG: + dbg(rules->udev, "%s %s '%s'\n", token_str(type), operation_str(op), value); + break; case TK_A_STRING_ESCAPE_NONE: case TK_A_STRING_ESCAPE_REPLACE: - case TK_A_IGNORE_REMOVE: dbg(rules->udev, "%s\n", token_str(type)); break; case TK_M_TEST: @@ -370,9 +373,6 @@ static void dump_token(struct udev_rules *rules, struct token *token) case TK_A_INOTIFY_WATCH: dbg(rules->udev, "%s %u\n", token_str(type), token->key.watch); break; - case TK_A_NUM_FAKE_PART: - dbg(rules->udev, "%s %u\n", token_str(type), token->key.num_fake_part); - break; case TK_A_DEVLINK_PRIO: dbg(rules->udev, "%s %s %u\n", token_str(type), operation_str(op), token->key.devlink_prio); break; @@ -719,7 +719,7 @@ static int import_property_from_string(struct udev_device *dev, char *line) entry = udev_device_add_property(dev, key, val); /* store in db, skip private keys */ if (key[0] != '.') - udev_list_entry_set_flag(entry, 1); + udev_list_entry_set_flags(entry, 1); } return 0; } @@ -787,7 +787,7 @@ static int import_parent_into_properties(struct udev_device *dev, const char *fi entry = udev_device_add_property(dev, key, val); /* store in db, skip private keys */ if (key[0] != '.') - udev_list_entry_set_flag(entry, 1); + udev_list_entry_set_flags(entry, 1); } } return 0; @@ -1003,6 +1003,7 @@ static int rule_add_key(struct rule_tmp *rule_tmp, enum token_type type, case TK_M_PROGRAM: case TK_M_IMPORT_FILE: case TK_M_IMPORT_PROG: + case TK_M_IMPORT_DB: case TK_M_IMPORT_PARENT: case TK_M_RESULT: case TK_A_OWNER: @@ -1010,6 +1011,8 @@ static int rule_add_key(struct rule_tmp *rule_tmp, enum token_type type, case TK_A_MODE: case TK_A_NAME: case TK_A_GOTO: + case TK_M_TAG: + case TK_A_TAG: token->key.value_off = add_string(rule_tmp->rules, value); break; case TK_M_ENV: @@ -1030,17 +1033,14 @@ static int rule_add_key(struct rule_tmp *rule_tmp, enum token_type type, if (data != NULL) token->key.mode = *(mode_t *)data; break; - case TK_A_IGNORE_DEVICE: case TK_A_STRING_ESCAPE_NONE: case TK_A_STRING_ESCAPE_REPLACE: - case TK_A_IGNORE_REMOVE: break; case TK_A_RUN: token->key.value_off = add_string(rule_tmp->rules, value); token->key.fail_on_error = *(int *)data; break; case TK_A_INOTIFY_WATCH: - case TK_A_NUM_FAKE_PART: case TK_A_DEVLINK_PRIO: token->key.devlink_prio = *(int *)data; break; @@ -1160,6 +1160,9 @@ static int add_rule(struct udev_rules *rules, char *line, char *linepos; char *attr; struct rule_tmp rule_tmp; + bool bus_warn = false; + bool sysfs_warn = false; + bool id_warn = false; memset(&rule_tmp, 0x00, sizeof(struct rule_tmp)); rule_tmp.rules = rules; @@ -1244,8 +1247,7 @@ static int add_rule(struct udev_rules *rules, char *line, continue; } - if (strcmp(key, "KERNELS") == 0 || - strcmp(key, "ID") == 0) { + if (strcmp(key, "KERNELS") == 0) { if (op > OP_MATCH_MAX) { err(rules->udev, "invalid KERNELS operation\n"); goto invalid; @@ -1254,8 +1256,37 @@ static int add_rule(struct udev_rules *rules, char *line, continue; } - if (strcmp(key, "SUBSYSTEMS") == 0 || - strcmp(key, "BUS") == 0) { + if (strcmp(key, "ID") == 0) { + if (!id_warn) { + id_warn = true; + err(rules->udev, "ID= will be removed in a future udev version, " + "please use KERNEL= to match the event device, or KERNELS= " + "to match a parent device, in %s:%u\n", filename, lineno); + } + if (op > OP_MATCH_MAX) { + err(rules->udev, "invalid KERNELS operation\n"); + goto invalid; + } + rule_add_key(&rule_tmp, TK_M_KERNELS, op, value, NULL); + continue; + } + + if (strcmp(key, "SUBSYSTEMS") == 0) { + if (op > OP_MATCH_MAX) { + err(rules->udev, "invalid SUBSYSTEMS operation\n"); + goto invalid; + } + rule_add_key(&rule_tmp, TK_M_SUBSYSTEMS, op, value, NULL); + continue; + } + + if (strcmp(key, "BUS") == 0) { + if (!bus_warn) { + bus_warn = true; + err(rules->udev, "BUS= will be removed in a future udev version, " + "please use SUBSYSTEM= to match the event device, or SUBSYSTEMS= " + "to match a parent device, in %s:%u\n", filename, lineno); + } if (op > OP_MATCH_MAX) { err(rules->udev, "invalid SUBSYSTEMS operation\n"); goto invalid; @@ -1273,8 +1304,7 @@ static int add_rule(struct udev_rules *rules, char *line, continue; } - if (strncmp(key, "ATTRS{", sizeof("ATTRS{")-1) == 0 || - strncmp(key, "SYSFS{", sizeof("SYSFS{")-1) == 0) { + if (strncmp(key, "ATTRS{", sizeof("ATTRS{")-1) == 0) { if (op > OP_MATCH_MAX) { err(rules->udev, "invalid ATTRS operation\n"); goto invalid; @@ -1294,6 +1324,26 @@ static int add_rule(struct udev_rules *rules, char *line, continue; } + if (strncmp(key, "SYSFS{", sizeof("SYSFS{")-1) == 0) { + if (!sysfs_warn) { + sysfs_warn = true; + err(rules->udev, "SYSFS{}= will be removed in a future udev version, " + "please use ATTR{}= to match the event device, or ATTRS{}= " + "to match a parent device, in %s:%u\n", filename, lineno); + } + if (op > OP_MATCH_MAX) { + err(rules->udev, "invalid ATTRS operation\n"); + goto invalid; + } + attr = get_key_attribute(rules->udev, key + sizeof("ATTRS")-1); + if (attr == NULL) { + err(rules->udev, "error parsing ATTRS attribute\n"); + goto invalid; + } + rule_add_key(&rule_tmp, TK_M_ATTRS, op, value, attr); + continue; + } + if (strncmp(key, "ENV{", sizeof("ENV{")-1) == 0) { attr = get_key_attribute(rules->udev, key + sizeof("ENV")-1); if (attr == NULL) { @@ -1310,6 +1360,14 @@ static int add_rule(struct udev_rules *rules, char *line, continue; } + if (strcmp(key, "TAG") == 0) { + if (op < OP_MATCH_MAX) + rule_add_key(&rule_tmp, TK_M_TAG, op, value, NULL); + else + rule_add_key(&rule_tmp, TK_A_TAG, op, value, NULL); + continue; + } + if (strcmp(key, "PROGRAM") == 0) { rule_add_key(&rule_tmp, TK_M_PROGRAM, op, value, NULL); continue; @@ -1332,6 +1390,9 @@ static int add_rule(struct udev_rules *rules, char *line, } else if (attr != NULL && strstr(attr, "file")) { dbg(rules->udev, "IMPORT will be included as file\n"); rule_add_key(&rule_tmp, TK_M_IMPORT_FILE, op, value, NULL); + } else if (attr != NULL && strstr(attr, "db")) { + dbg(rules->udev, "IMPORT will include db values\n"); + rule_add_key(&rule_tmp, TK_M_IMPORT_DB, op, value, NULL); } else if (attr != NULL && strstr(attr, "parent")) { dbg(rules->udev, "IMPORT will include the parent values\n"); rule_add_key(&rule_tmp, TK_M_IMPORT_PARENT, op, value, NULL); @@ -1407,25 +1468,10 @@ static int add_rule(struct udev_rules *rules, char *line, if (op < OP_MATCH_MAX) { rule_add_key(&rule_tmp, TK_M_NAME, op, value, NULL); } else { - if (value[0] == '\0') - info(rules->udev, "name empty, node creation suppressed\n"); - else if (strcmp(value, "%k") == 0) + if (strcmp(value, "%k") == 0) err(rules->udev, "NAME=\"%%k\" is superfluous and breaks " "kernel supplied names, please remove it from %s:%u\n", filename, lineno); rule_add_key(&rule_tmp, TK_A_NAME, op, value, NULL); - attr = get_key_attribute(rules->udev, key + sizeof("NAME")-1); - if (attr != NULL) { - if (strstr(attr, "all_partitions") != NULL) { - int num = DEFAULT_FAKE_PARTITIONS_COUNT; - - dbg(rules->udev, "creation of partition nodes requested\n"); - rule_add_key(&rule_tmp, TK_A_NUM_FAKE_PART, 0, NULL, &num); - } - if (strstr(attr, "ignore_remove") != NULL) { - dbg(rules->udev, "remove event should be ignored\n"); - rule_add_key(&rule_tmp, TK_A_IGNORE_REMOVE, 0, NULL, NULL); - } - } } rule_tmp.rule.rule.flags = 1; continue; @@ -1496,14 +1542,6 @@ static int add_rule(struct udev_rules *rules, char *line, if (strcmp(key, "OPTIONS") == 0) { const char *pos; - if (strstr(value, "ignore_device") != NULL) { - dbg(rules->udev, "device should be ignored\n"); - rule_add_key(&rule_tmp, TK_A_IGNORE_DEVICE, 0, NULL, NULL); - } - if (strstr(value, "ignore_remove") != NULL) { - dbg(rules->udev, "remove event should be ignored\n"); - rule_add_key(&rule_tmp, TK_A_IGNORE_REMOVE, 0, NULL, NULL); - } pos = strstr(value, "link_priority="); if (pos != NULL) { int prio = atoi(&pos[strlen("link_priority=")]); @@ -1526,12 +1564,6 @@ static int add_rule(struct udev_rules *rules, char *line, else if (strncmp(pos, "replace", strlen("replace")) == 0) rule_add_key(&rule_tmp, TK_A_STRING_ESCAPE_REPLACE, 0, NULL, NULL); } - if (strstr(value, "all_partitions") != NULL) { - int num = DEFAULT_FAKE_PARTITIONS_COUNT; - - rule_add_key(&rule_tmp, TK_A_NUM_FAKE_PART, 0, NULL, &num); - dbg(rules->udev, "creation of partition nodes requested\n"); - } pos = strstr(value, "nowatch"); if (pos != NULL) { const int off = 0; @@ -1788,13 +1820,13 @@ struct udev_rules *udev_rules_new(struct udev *udev, int resolve_names) filename_off = add_string(rules, filename); /* the offset in the rule is limited to unsigned short */ if (filename_off < USHRT_MAX) - udev_list_entry_set_flag(file_loop, filename_off); + udev_list_entry_set_flags(file_loop, filename_off); } /* parse list of files */ udev_list_entry_foreach_safe(file_loop, file_tmp, udev_list_get_entry(&file_list)) { const char *filename = udev_list_entry_get_name(file_loop); - unsigned int filename_off = udev_list_entry_get_flag(file_loop); + unsigned int filename_off = udev_list_entry_get_flags(file_loop); if (stat(filename, &statbuf) == 0 && statbuf.st_size > 0) parse_file(rules, filename, filename_off); @@ -2005,13 +2037,12 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event struct token *cur; struct token *rule; enum escape_type esc = ESCAPE_UNSET; - int can_set_name; + bool can_set_name; if (rules->tokens == NULL) return -1; - can_set_name = ((strcmp(udev_device_get_action(event->dev), "add") == 0 || - strcmp(udev_device_get_action(event->dev), "change") == 0) && + can_set_name = ((strcmp(udev_device_get_action(event->dev), "remove") != 0) && (major(udev_device_get_devnum(event->dev)) > 0 || strcmp(udev_device_get_subsystem(event->dev), "net") == 0)); @@ -2078,6 +2109,21 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event goto nomatch; break; } + case TK_M_TAG: + { + struct udev_list_entry *list_entry; + bool match = false; + + udev_list_entry_foreach(list_entry, udev_device_get_tags_list_entry(event->dev)) { + if (strcmp(&rules->buf[cur->key.value_off], udev_list_entry_get_name(list_entry)) == 0) { + match = true; + break; + } + } + if (!match && (cur->key.op != OP_NOMATCH)) + goto nomatch; + break; + } case TK_M_SUBSYSTEM: if (match_key(rules, cur, udev_device_get_subsystem(event->dev)) != 0) goto nomatch; @@ -2245,6 +2291,23 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event goto nomatch; break; } + case TK_M_IMPORT_DB: + { + const char *key = &rules->buf[cur->key.value_off]; + const char *value; + + value = udev_device_get_property_value(event->dev_db, key); + if (value != NULL) { + struct udev_list_entry *entry; + + entry = udev_device_add_property(event->dev, key, value); + udev_list_entry_set_flags(entry, 1); + } else { + if (cur->key.op != OP_NOMATCH) + goto nomatch; + } + break; + } case TK_M_IMPORT_PARENT: { char import[UTIL_PATH_SIZE]; @@ -2259,24 +2322,12 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event if (match_key(rules, cur, event->program_result) != 0) goto nomatch; break; - - case TK_A_IGNORE_DEVICE: - event->ignore_device = 1; - return 0; - break; case TK_A_STRING_ESCAPE_NONE: esc = ESCAPE_NONE; break; case TK_A_STRING_ESCAPE_REPLACE: esc = ESCAPE_REPLACE; break; - case TK_A_NUM_FAKE_PART: - if (strcmp(udev_device_get_subsystem(event->dev), "block") != 0) - break; - if (udev_device_get_sysnum(event->dev) != NULL) - break; - udev_device_set_num_fake_partitions(event->dev, cur->key.num_fake_part); - break; case TK_A_INOTIFY_WATCH: event->inotify_watch = cur->key.watch; break; @@ -2382,12 +2433,17 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event entry = udev_device_add_property(event->dev, name, temp_value); /* store in db, skip private keys */ if (name[0] != '.') - udev_list_entry_set_flag(entry, 1); + udev_list_entry_set_flags(entry, 1); } else { udev_device_add_property(event->dev, name, NULL); } break; } + case TK_A_TAG: + if (cur->key.op == OP_ASSIGN || cur->key.op == OP_ASSIGN_FINAL) + udev_device_cleanup_tags_list(event->dev); + udev_device_add_tag(event->dev, &rules->buf[cur->key.value_off]); + break; case TK_A_NAME: { const char *name = &rules->buf[cur->key.value_off]; @@ -2463,9 +2519,6 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event case TK_A_EVENT_TIMEOUT: udev_device_set_event_timeout(event->dev, cur->key.event_timeout); break; - case TK_A_IGNORE_REMOVE: - udev_device_set_ignore_remove(event->dev, 1); - break; case TK_A_ATTR: { const char *key_name = &rules->buf[cur->key.attr_off]; @@ -2504,7 +2557,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event list_entry = udev_list_entry_add(event->udev, &event->run_list, &rules->buf[cur->key.value_off], NULL, 1, 0); if (cur->key.fail_on_error) - udev_list_entry_set_flag(list_entry, 1); + udev_list_entry_set_flags(list_entry, 1); break; } case TK_A_GOTO: