1 files changed, 166 insertions, 0 deletions
diff --git a/src/network/networkd-conf.c b/src/network/networkd-conf.c
new file mode 100644
index 0000000..334ffc3
--- /dev/null
+++ b/src/network/networkd-conf.c
@@ -0,0 +1,166 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+/***
+  Copyright © 2014 Vinay Kulkarni <kulkarniv@vmware.com>
+ ***/
+
+#include <ctype.h>
+
+#include "conf-parser.h"
+#include "def.h"
+#include "dhcp-identifier.h"
+#include "extract-word.h"
+#include "hexdecoct.h"
+#include "networkd-conf.h"
+#include "networkd-network.h"
+#include "string-table.h"
+
+int manager_parse_config_file(Manager *m) {
+        assert(m);
+
+        return config_parse_many_nulstr(PKGSYSCONFDIR "/networkd.conf",
+                                        CONF_PATHS_NULSTR("systemd/networkd.conf.d"),
+                                        "DHCP\0",
+                                        config_item_perf_lookup, networkd_gperf_lookup,
+                                        CONFIG_PARSE_WARN, m);
+}
+
+static const char* const duid_type_table[_DUID_TYPE_MAX] = {
+        [DUID_TYPE_LLT]  = "link-layer-time",
+        [DUID_TYPE_EN]   = "vendor",
+        [DUID_TYPE_LL]   = "link-layer",
+        [DUID_TYPE_UUID] = "uuid",
+};
+DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(duid_type, DUIDType);
+
+int config_parse_duid_type(
+                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) {
+
+        _cleanup_free_ char *type_string = NULL;
+        const char *p = rvalue;
+        DUID *duid = data;
+        DUIDType type;
+        int r;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+        assert(duid);
+
+        r = extract_first_word(&p, &type_string, ":", 0);
+        if (r == -ENOMEM)
+                return log_oom();
+        if (r < 0) {
+                log_syntax(unit, LOG_WARNING, filename, line, r,
+                           "Invalid syntax, ignoring: %s", rvalue);
+                return 0;
+        }
+        if (r == 0) {
+                log_syntax(unit, LOG_WARNING, filename, line, 0,
+                           "Failed to extract DUID type from '%s', ignoring.", rvalue);
+                return 0;
+        }
+
+        type = duid_type_from_string(type_string);
+        if (type < 0) {
+                log_syntax(unit, LOG_WARNING, filename, line, 0,
+                           "Failed to parse DUID type '%s', ignoring.", type_string);
+                return 0;
+        }
+
+        if (!isempty(p)) {
+                usec_t u;
+
+                if (type != DUID_TYPE_LLT) {
+                        log_syntax(unit, LOG_WARNING, filename, line, r,
+                                   "Invalid syntax, ignoring: %s", rvalue);
+                        return 0;
+                }
+
+                r = parse_timestamp(p, &u);
+                if (r < 0) {
+                        log_syntax(unit, LOG_WARNING, filename, line, r,
+                                   "Failed to parse timestamp, ignoring: %s", p);
+                        return 0;
+                }
+
+                duid->llt_time = u;
+        }
+
+        duid->type = type;
+
+        return 0;
+}
+
+int config_parse_duid_rawdata(
+                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) {
+
+        DUID *ret = data;
+        uint8_t raw_data[MAX_DUID_LEN];
+        unsigned count = 0;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+        assert(ret);
+
+        /* RawData contains DUID in format "NN:NN:NN..." */
+        for (;;) {
+                int n1, n2, len, r;
+                uint32_t byte;
+                _cleanup_free_ char *cbyte = NULL;
+
+                r = extract_first_word(&rvalue, &cbyte, ":", 0);
+                if (r < 0) {
+                        log_syntax(unit, LOG_ERR, filename, line, r, "Failed to read DUID, ignoring assignment: %s.", rvalue);
+                        return 0;
+                }
+                if (r == 0)
+                        break;
+                if (count >= MAX_DUID_LEN) {
+                        log_syntax(unit, LOG_ERR, filename, line, 0, "Max DUID length exceeded, ignoring assignment: %s.", rvalue);
+                        return 0;
+                }
+
+                len = strlen(cbyte);
+                if (!IN_SET(len, 1, 2)) {
+                        log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid length - DUID byte: %s, ignoring assignment: %s.", cbyte, rvalue);
+                        return 0;
+                }
+                n1 = unhexchar(cbyte[0]);
+                if (len == 2)
+                        n2 = unhexchar(cbyte[1]);
+                else
+                        n2 = 0;
+
+                if (n1 < 0 || n2 < 0) {
+                        log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid DUID byte: %s. Ignoring assignment: %s.", cbyte, rvalue);
+                        return 0;
+                }
+
+                byte = ((uint8_t) n1 << (4 * (len-1))) | (uint8_t) n2;
+                raw_data[count++] = byte;
+        }
+
+        assert_cc(sizeof(raw_data) == sizeof(ret->raw_data));
+        memcpy(ret->raw_data, raw_data, count);
+        ret->raw_data_len = count;
+        return 0;
+}