fix NAME="" logic

Reported-By: Soh Kam Yung <sohkamyung@gmail.com>

diff --git a/test/udev-test.pl b/test/udev-test.pl
index 61e91c48b66e9ec5381ea72b87cee7beb5bfd900..1b81eb8d722ad29e8e06cd0805248627600aa92c 100755 (executable)
--- a/test/udev-test.pl
+++ b/test/udev-test.pl
@@ -1032,7 +1032,7 @@ EOF
                not_exp_name    => "node",
                exp_add_error   => "yes",
                rules           => <<EOF
-SUBSYSTEMS=="scsi", KERNEL=="sda", NAME="node", OPTIONS="ignore"
+SUBSYSTEMS=="scsi", KERNEL=="sda", NAME="node", OPTIONS="ignore_device"
 EOF
        },
        {
@@ -1419,6 +1419,17 @@ EOF
                subsys          => "tty",
                devpath         => "/devices/pci0000:00/0000:00:1d.7/usb5/5-2/5-2:1.0/tty/ttyACM0",
                exp_name        => "<none>",
+               not_exp_name    => "ttyACM0",
+               exp_add_error   => "yes",
+               rules           => <<EOF
+KERNEL=="ttyACM[0-9]*", NAME=""
+EOF
+       },
+       {
+               desc            => "test empty NAME (empty override)",
+               subsys          => "tty",
+               devpath         => "/devices/pci0000:00/0000:00:1d.7/usb5/5-2/5-2:1.0/tty/ttyACM0",
+               exp_name        => "<none>",
                not_exp_name    => "wrong",
                exp_add_error   => "yes",
                rules           => <<EOF
@@ -1427,7 +1438,7 @@ KERNEL=="ttyACM[0-9]*", NAME=""
 EOF
        },
        {
-               desc            => "test empty NAME 2",
+               desc            => "test empty NAME (non-empty override)",
                subsys          => "tty",
                devpath         => "/devices/pci0000:00/0000:00:1d.7/usb5/5-2/5-2:1.0/tty/ttyACM0",
                exp_name        => "right",
@@ -1593,16 +1604,6 @@ EOF
                rules           => <<EOF
 TEST=="/etc/hosts", NAME="there"
 TEST!="/etc/hosts", NAME="notthere"
-EOF
-       },
-       {
-               desc            => "TEST invalid NAME= only (skip invalid rule)",
-               subsys          => "block",
-               devpath         => "/devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda",
-               exp_name        => "yes",
-               rules           => <<EOF
-SUBSYSTEM=="block", NAME="yes"
-NAME="no"
 EOF
        },
        {
@@ -1817,19 +1818,20 @@ sub run_test {
 
 
        udev("add", $rules->{subsys}, $rules->{devpath}, \$rules->{rules});
+       if (defined($rules->{not_exp_name})) {
+               if ((-e "$PWD/$udev_root$rules->{not_exp_name}") ||
+                   (-l "$PWD/$udev_root$rules->{not_exp_name}")) {
+                       print "nonexistent: error \'$rules->{not_exp_name}\' not expected to be there\n";
+                       $error++
+               }
+       }
+
        if ((-e "$PWD/$udev_root$rules->{exp_name}") ||
            (-l "$PWD/$udev_root$rules->{exp_name}")) {
 
                my ($dev, $ino, $mode, $nlink, $uid, $gid, $rdev, $size,
                    $atime, $mtime, $ctime, $blksize, $blocks) = stat("$PWD/$udev_root$rules->{exp_name}");
 
-               if (defined($rules->{not_exp_name})) {
-                       if ((-e "$PWD/$udev_root$rules->{not_exp_name}") ||
-                           (-l "$PWD/$udev_root$rules->{not_exp_name}")) {
-                               print "nonexistent: error \'$rules->{not_exp_name}\' not expected to be there\n";
-                               $error++
-                       }
-               }
                if (defined($rules->{exp_perms})) {
                        permissions_test($rules, $uid, $gid, $mode);
                }

diff --git a/udev/udev-rules.c b/udev/udev-rules.c
index ccf1eaaf8f43b5027038780be1975dce2349148c..52638aeb1db2f40af60bc11ff3bd95bc9c9d7c7c 100644 (file)
--- a/udev/udev-rules.c
+++ b/udev/udev-rules.c
@@ -1131,7 +1131,6 @@ static int sort_token(struct udev_rules *rules, struct rule_tmp *rule_tmp)
 static int add_rule(struct udev_rules *rules, char *line,
                    const char *filename, unsigned int filename_off, unsigned int lineno)
 {
-       int valid = 0;
        char *linepos;
        char *attr;
        int physdev = 0;
@@ -1159,7 +1158,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                                goto invalid;
                        }
                        rule_add_key(&rule_tmp, TK_M_ACTION, op, value, NULL);
-                       valid = 1;
                        continue;
                }
 
@@ -1169,7 +1167,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                                goto invalid;
                        }
                        rule_add_key(&rule_tmp, TK_M_DEVPATH, op, value, NULL);
-                       valid = 1;
                        continue;
                }
 
@@ -1179,7 +1176,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                                goto invalid;
                        }
                        rule_add_key(&rule_tmp, TK_M_KERNEL, op, value, NULL);
-                       valid = 1;
                        continue;
                }
 
@@ -1198,7 +1194,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                                rule_add_key(&rule_tmp, TK_M_SUBSYSTEM, op, "subsystem|class|bus", NULL);
                        } else
                                rule_add_key(&rule_tmp, TK_M_SUBSYSTEM, op, value, NULL);
-                       valid = 1;
                        continue;
                }
 
@@ -1208,7 +1203,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                                goto invalid;
                        }
                        rule_add_key(&rule_tmp, TK_M_DRIVER, op, value, NULL);
-                       valid = 1;
                        continue;
                }
 
@@ -1223,7 +1217,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                        } else {
                                rule_add_key(&rule_tmp, TK_A_ATTR, op, value, attr);
                        }
-                       valid = 1;
                        continue;
                }
 
@@ -1234,7 +1227,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                                goto invalid;
                        }
                        rule_add_key(&rule_tmp, TK_M_KERNELS, op, value, NULL);
-                       valid = 1;
                        continue;
                }
 
@@ -1245,7 +1237,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                                goto invalid;
                        }
                        rule_add_key(&rule_tmp, TK_M_SUBSYSTEMS, op, value, NULL);
-                       valid = 1;
                        continue;
                }
 
@@ -1255,7 +1246,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                                goto invalid;
                        }
                        rule_add_key(&rule_tmp, TK_M_DRIVERS, op, value, NULL);
-                       valid = 1;
                        continue;
                }
 
@@ -1277,7 +1267,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                                err(rules->udev, "do not reference parent sysfs directories directly, "
                                    "it may break with a future kernel, please fix it in %s:%u", filename, lineno);
                        rule_add_key(&rule_tmp, TK_M_ATTRS, op, value, attr);
-                       valid = 1;
                        continue;
                }
 
@@ -1296,13 +1285,11 @@ static int add_rule(struct udev_rules *rules, char *line,
                                if (rule_add_key(&rule_tmp, TK_A_ENV, op, value, attr) != 0)
                                        goto invalid;
                        }
-                       valid = 1;
                        continue;
                }
 
                if (strcasecmp(key, "PROGRAM") == 0) {
                        rule_add_key(&rule_tmp, TK_M_PROGRAM, op, value, NULL);
-                       valid = 1;
                        continue;
                }
 
@@ -1312,7 +1299,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                                goto invalid;
                        }
                        rule_add_key(&rule_tmp, TK_M_RESULT, op, value, NULL);
-                       valid = 1;
                        continue;
                }
 
@@ -1321,15 +1307,12 @@ static int add_rule(struct udev_rules *rules, char *line,
                        if (attr != NULL && strstr(attr, "program")) {
                                dbg(rules->udev, "IMPORT will be executed\n");
                                rule_add_key(&rule_tmp, TK_M_IMPORT_PROG, op, value, NULL);
-                               valid = 1;
                        } 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);
-                               valid = 1;
                        } 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);
-                               valid = 1;
                        } else {
                                /* figure it out if it is executable */
                                char file[UTIL_PATH_SIZE];
@@ -1354,11 +1337,9 @@ static int add_rule(struct udev_rules *rules, char *line,
                                if (!lstat(file, &statbuf) && (statbuf.st_mode & S_IXUSR)) {
                                        dbg(rules->udev, "IMPORT will be executed (autotype)\n");
                                        rule_add_key(&rule_tmp, TK_M_IMPORT_PROG, op, value, NULL);
-                                       valid = 1;
                                } else {
                                        dbg(rules->udev, "IMPORT will be included as file (autotype)\n");
                                        rule_add_key(&rule_tmp, TK_M_IMPORT_FILE, op, value, NULL);
-                                       valid = 1;
                                }
                        }
                        continue;
@@ -1378,7 +1359,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                        } else {
                                rule_add_key(&rule_tmp, TK_M_TEST, op, value, NULL);
                        }
-                       valid = 1;
                        continue;
                }
 
@@ -1389,26 +1369,22 @@ static int add_rule(struct udev_rules *rules, char *line,
                        if (attr != NULL && strstr(attr, "ignore_error"))
                                flag = 1;
                        rule_add_key(&rule_tmp, TK_A_RUN, op, value, &flag);
-                       valid = 1;
                        continue;
                }
 
                if (strcasecmp(key, "WAIT_FOR") == 0 || strcasecmp(key, "WAIT_FOR_SYSFS") == 0) {
                        rule_add_key(&rule_tmp, TK_M_WAITFOR, 0, value, NULL);
-                       valid = 1;
                        waitfor = 1;
                        continue;
                }
 
                if (strcasecmp(key, "LABEL") == 0) {
                        rule_tmp.rule.rule.label_off = add_string(rules, value);
-                       valid = 1;
                        continue;
                }
 
                if (strcasecmp(key, "GOTO") == 0) {
                        rule_add_key(&rule_tmp, TK_A_GOTO, 0, value, NULL);
-                       valid = 1;
                        continue;
                }
 
@@ -1417,7 +1393,7 @@ static int add_rule(struct udev_rules *rules, char *line,
                                rule_add_key(&rule_tmp, TK_M_NAME, op, value, NULL);
                        } else {
                                if (value[0] == '\0')
-                                       dbg(rules->udev, "name empty, node creation suppressed\n");
+                                       info(rules->udev, "name empty, node creation suppressed\n");
                                rule_add_key(&rule_tmp, TK_A_NAME, op, value, NULL);
                                attr = get_key_attribute(rules->udev, key + sizeof("NAME")-1);
                                if (attr != NULL) {
@@ -1443,7 +1419,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                        else
                                rule_add_key(&rule_tmp, TK_A_DEVLINK, op, value, NULL);
                        rule_tmp.rule.rule.flags = 1;
-                       valid = 1;
                        continue;
                }
 
@@ -1461,7 +1436,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                                rule_add_key(&rule_tmp, TK_A_OWNER, op, value, NULL);
                        }
                        rule_tmp.rule.rule.flags = 1;
-                       valid = 1;
                        continue;
                }
 
@@ -1479,7 +1453,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                                rule_add_key(&rule_tmp, TK_A_GROUP, op, value, NULL);
                        }
                        rule_tmp.rule.rule.flags = 1;
-                       valid = 1;
                        continue;
                }
 
@@ -1493,7 +1466,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                        else
                                rule_add_key(&rule_tmp, TK_A_MODE, op, value, NULL);
                        rule_tmp.rule.rule.flags = 1;
-                       valid = 1;
                        continue;
                }
 
@@ -1540,7 +1512,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                                rule_add_key(&rule_tmp, TK_A_NUM_FAKE_PART, 0, NULL, &num);
                                dbg(rules->udev, "creation of partition nodes requested\n");
                        }
-                       valid = 1;
                        continue;
                }
                err(rules->udev, "unknown key '%s' in %s:%u\n", key, filename, lineno);
@@ -1550,10 +1521,6 @@ static int add_rule(struct udev_rules *rules, char *line,
                err(rules->udev, "PHYSDEV* values are deprecated and not available on recent kernels, "
                    "please fix it in %s:%u\n", filename, lineno);
 
-       /* skip line if no valid key was found */
-       if (!valid)
-               goto invalid;
-
        /* add rule token */
        rule_tmp.rule.rule.token_count = 1 + rule_tmp.token_cur;
        if (add_token(rules, &rule_tmp.rule) != 0)
@@ -2398,11 +2365,6 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event
                                        break;
                                if (cur->key.op == OP_ASSIGN_FINAL)
                                        event->name_final = 1;
-                               if (name[0] == '\0') {
-                                       free(event->name);
-                                       event->name = NULL;
-                                       break;
-                               }
                                util_strlcpy(name_str, name, sizeof(name_str));
                                udev_event_apply_format(event, name_str, sizeof(name_str));
                                if (esc == ESCAPE_UNSET || esc == ESCAPE_REPLACE) {