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Code

allow SYMLINK== match

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This commit is contained in:
Kay Sievers 2007-07-16 13:29:28 +02:00
parent 254d6d3ca2
commit 1ff1aa424b
4 changed files with 32 additions and 19 deletions
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12
test/udev-test.pl
View File

@ -1516,18 +1516,6 @@ KERNEL=="sda2", NAME="wrong"
KERNEL=="sda1", NAME=="wrong*", SYMLINK+="wronglink"
KERNEL=="sda1", NAME=="?*", SYMLINK+="link"
KERNEL=="sda1", NAME=="node*", SYMLINK+="link2"
EOF
},
{
desc => "NAME compare test 2",
subsys => "block",
devpath => "/block/sda/sda1",
exp_name => "link2",
exp_target => "sda1",
not_exp_name => "link",
rules => <<EOF
KERNEL=="sda1", NAME=="?*", SYMLINK+="link"
KERNEL=="sda1", NAME!="?*", SYMLINK+="link2"
EOF
},
{

32
udev_rules.c
View File

@ -940,10 +940,25 @@ static int match_rule(struct udevice *udev, struct udev_rule *rule)
if (match_key("DRIVER", rule, &rule->driver, udev->dev->driver))
goto nomatch;
/* match NAME against a value assigned by an earlier rule */
if (match_key("NAME", rule, &rule->name, udev->name))
goto nomatch;
/* match against current list of symlinks */
if (rule->symlink_match.operation == KEY_OP_MATCH ||
rule->symlink_match.operation == KEY_OP_NOMATCH) {
struct name_entry *name_loop;
int match = 0;
list_for_each_entry(name_loop, &udev->symlink_list, node) {
if (match_key("SYMLINK", rule, &rule->symlink_match, name_loop->name) == 0) {
match = 1;
break;
}
}
if (!match)
goto nomatch;
}
for (i = 0; i < rule->env.count; i++) {
struct key_pair *pair = &rule->env.keys[i];
@ -1250,6 +1265,9 @@ int udev_rules_get_name(struct udev_rules *rules, struct udevice *udev)
dbg("udev->dev->devpath='%s'", udev->dev->devpath);
dbg("udev->dev->kernel='%s'", udev->dev->kernel);
/* use kernel name as default node name */
strlcpy(udev->name, udev->dev->kernel, sizeof(udev->name));
/* look for a matching rule to apply */
udev_rules_iter_init(rules);
while (1) {
@ -1311,14 +1329,18 @@ int udev_rules_get_name(struct udev_rules *rules, struct udevice *udev)
}
/* collect symlinks */
if (!udev->symlink_final && rule->symlink.operation != KEY_OP_UNSET) {
if (!udev->symlink_final &&
(rule->symlink.operation == KEY_OP_ASSIGN ||
rule->symlink.operation == KEY_OP_ASSIGN_FINAL ||
rule->symlink.operation == KEY_OP_ADD)) {
char temp[PATH_SIZE];
char *pos, *next;
int count;
if (rule->symlink.operation == KEY_OP_ASSIGN_FINAL)
udev->symlink_final = 1;
if (rule->symlink.operation == KEY_OP_ASSIGN || rule->symlink.operation == KEY_OP_ASSIGN_FINAL) {
if (rule->symlink.operation == KEY_OP_ASSIGN ||
rule->symlink.operation == KEY_OP_ASSIGN_FINAL) {
info("reset symlink list");
name_list_cleanup(&udev->symlink_list);
}
@ -1400,10 +1422,8 @@ int udev_rules_get_name(struct udev_rules *rules, struct udevice *udev)
}
}
if (!name_set) {
strlcpy(udev->name, udev->dev->kernel, sizeof(udev->name));
if (!name_set)
info("no node name set, will use kernel name '%s'", udev->name);
}
if (udev->tmp_node[0] != '\0') {
dbg("removing temporary device node");

1
udev_rules.h
View File

@ -90,6 +90,7 @@ struct udev_rule {
struct key name;
struct key symlink;
struct key symlink_match;
struct key owner;
struct key group;
mode_t mode;

6
udev_rules_parse.c
View File

@ -525,7 +525,11 @@ static int add_to_rules(struct udev_rules *rules, char *line, const char *filena
}
if (strcasecmp(key, "SYMLINK") == 0) {
add_rule_key(rule, &rule->symlink, operation, value);
if (operation == KEY_OP_MATCH ||
operation == KEY_OP_NOMATCH)
add_rule_key(rule, &rule->symlink_match, operation, value);
else
add_rule_key(rule, &rule->symlink, operation, value);
valid = 1;
continue;
}