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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
commitb750101eb236130cf056c675997decbac904cc49 (patch)
treea5df1a06754bdd014cb975c051c83b01c9a97532 /src/shared/vlan-util.c
parentInitial commit. (diff)
downloadsystemd-b750101eb236130cf056c675997decbac904cc49.tar.xz
systemd-b750101eb236130cf056c675997decbac904cc49.zip
Adding upstream version 252.22.upstream/252.22
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/shared/vlan-util.c')
-rw-r--r--src/shared/vlan-util.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/src/shared/vlan-util.c b/src/shared/vlan-util.c
new file mode 100644
index 0000000..17f2d39
--- /dev/null
+++ b/src/shared/vlan-util.c
@@ -0,0 +1,98 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "conf-parser.h"
+#include "parse-util.h"
+#include "string-util.h"
+#include "vlan-util.h"
+
+int parse_vlanid(const char *p, uint16_t *ret) {
+ uint16_t id;
+ int r;
+
+ assert(p);
+ assert(ret);
+
+ r = safe_atou16(p, &id);
+ if (r < 0)
+ return r;
+ if (!vlanid_is_valid(id))
+ return -ERANGE;
+
+ *ret = id;
+ return 0;
+}
+
+int parse_vid_range(const char *p, uint16_t *vid, uint16_t *vid_end) {
+ unsigned lower, upper;
+ int r;
+
+ r = parse_range(p, &lower, &upper);
+ if (r < 0)
+ return r;
+
+ if (lower > VLANID_MAX || upper > VLANID_MAX || lower > upper)
+ return -EINVAL;
+
+ *vid = lower;
+ *vid_end = upper;
+ return 0;
+}
+
+int config_parse_default_port_vlanid(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+ uint16_t *id = ASSERT_PTR(data);
+
+ assert(lvalue);
+ assert(rvalue);
+
+ if (streq(rvalue, "none")) {
+ *id = 0;
+ return 0;
+ }
+
+ return config_parse_vlanid(unit, filename, line, section, section_line,
+ lvalue, ltype, rvalue, data, userdata);
+}
+
+int config_parse_vlanid(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ uint16_t *id = ASSERT_PTR(data);
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ r = parse_vlanid(rvalue, id);
+ if (r == -ERANGE) {
+ log_syntax(unit, LOG_WARNING, filename, line, r,
+ "VLAN identifier outside of valid range 0…4094, ignoring: %s", rvalue);
+ return 0;
+ }
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r,
+ "Failed to parse VLAN identifier value, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ return 0;
+}