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authorTom Gundersen <teg@jklm.no>2013-10-28 20:59:56 +0100
committerTom Gundersen <teg@jklm.no>2013-10-29 14:17:57 +0100
commit5fde13d748749f0e06e2e6cdd15f0980a79ea82c (patch)
treea10f8106048135d1f84b3dbe6c1ec9d8827afd1f /src/udev/net/link-config-parse.c
parent916484f54d084e11a11458716b2e0bbdf4822d40 (diff)
udev: link-config - add proper parsing
Diffstat (limited to 'src/udev/net/link-config-parse.c')
-rw-r--r--src/udev/net/link-config-parse.c128
1 files changed, 128 insertions, 0 deletions
diff --git a/src/udev/net/link-config-parse.c b/src/udev/net/link-config-parse.c
new file mode 100644
index 0000000000..54dd57be59
--- /dev/null
+++ b/src/udev/net/link-config-parse.c
@@ -0,0 +1,128 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright (C) 2013 Tom Gundersen <teg@jklm.no>
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <netinet/ether.h>
+#include <net/if.h>
+
+#include "link-config.h"
+
+#include "utf8.h"
+#include "conf-parser.h"
+
+static const char* const mac_policy_table[] = {
+ [MACPOLICY_PERSISTENT] = "persistent",
+ [MACPOLICY_RANDOM] = "random"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(mac_policy, MACPolicy);
+DEFINE_CONFIG_PARSE_ENUM(config_parse_mac_policy, mac_policy, MACPolicy, "Failed to parse MAC address policy");
+
+static const char* const name_policy_table[] = {
+ [NAMEPOLICY_ONBOARD] = "onboard",
+ [NAMEPOLICY_SLOT] = "slot",
+ [NAMEPOLICY_PATH] = "path",
+ [NAMEPOLICY_MAC] = "mac"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(name_policy, NamePolicy);
+DEFINE_CONFIG_PARSE_ENUMV(config_parse_name_policy, name_policy, NamePolicy, _NAMEPOLICY_INVALID, "Failed to parse interface name policy");
+
+int config_parse_ifname(const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ char **s = data;
+ char *n;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ n = strdup(rvalue);
+ if (!n)
+ return log_oom();
+
+ if (!ascii_is_valid(n) || strlen(n) >= IFNAMSIZ) {
+ log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+ "Interface name is not ASCII clean or is too long, ignoring assignment: %s", rvalue);
+ free(n);
+ return 0;
+ }
+
+ free(*s);
+ if (*n)
+ *s = n;
+ else {
+ free(n);
+ *s = NULL;
+ }
+
+ return 0;
+}
+
+int config_parse_hwaddr(const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+ struct ether_addr **hwaddr = data;
+ struct ether_addr *n;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ n = calloc(1, sizeof(struct ether_addr));
+ if (!n)
+ return log_oom();
+
+ r = sscanf(rvalue, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
+ &n->ether_addr_octet[0],
+ &n->ether_addr_octet[1],
+ &n->ether_addr_octet[2],
+ &n->ether_addr_octet[3],
+ &n->ether_addr_octet[4],
+ &n->ether_addr_octet[5]);
+ if (r != 6) {
+ log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+ "Not a valid MAC address, ignoring assignment: %s", rvalue);
+ free(n);
+ return 0;
+ }
+
+ free(*hwaddr);
+ *hwaddr = n;
+
+ return 0;
+}