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authorAlex Crawford <alex.crawford@coreos.com>2015-07-31 20:18:51 -0700
committerAlex Crawford <alex.crawford@coreos.com>2015-08-05 09:00:57 -0700
commita073309fb779e9c9e48eaef664daeb6b8f6080da (patch)
tree5bd0288183077852a2874b9fe3505528e39991ca /src/libsystemd-network
parent7e753d9d28ca93fe0e48fd3605ed7c3371736422 (diff)
networkd: serialize the private options
Save the private options along side the rest of the options in the lease files.
Diffstat (limited to 'src/libsystemd-network')
-rw-r--r--src/libsystemd-network/network-internal.c27
-rw-r--r--src/libsystemd-network/network-internal.h3
-rw-r--r--src/libsystemd-network/sd-dhcp-lease.c62
3 files changed, 90 insertions, 2 deletions
diff --git a/src/libsystemd-network/network-internal.c b/src/libsystemd-network/network-internal.c
index d579755cc8..3d78bf8b35 100644
--- a/src/libsystemd-network/network-internal.c
+++ b/src/libsystemd-network/network-internal.c
@@ -509,3 +509,30 @@ int deserialize_dhcp_routes(struct sd_dhcp_route **ret, size_t *ret_size, size_t
return 0;
}
+
+int serialize_dhcp_option(FILE *f, const char *key, const uint8_t *data, size_t size) {
+ _cleanup_free_ char *hex_buf = NULL;
+
+ assert(f);
+ assert(key);
+ assert(data);
+
+ hex_buf = hexmem(data, size);
+ if (hex_buf == NULL)
+ return -ENOMEM;
+
+ fprintf(f, "%s=%s\n", key, hex_buf);
+
+ return 0;
+}
+
+int deserialize_dhcp_option(uint8_t **data, size_t *data_len, const char *string) {
+ assert(data);
+ assert(data_len);
+ assert(string);
+
+ if (strlen(string) % 2)
+ return -EINVAL;
+
+ return unhexmem(string, strlen(string), (void **)data, data_len);
+}
diff --git a/src/libsystemd-network/network-internal.h b/src/libsystemd-network/network-internal.h
index 06aba893ce..7aaecbb10d 100644
--- a/src/libsystemd-network/network-internal.h
+++ b/src/libsystemd-network/network-internal.h
@@ -74,3 +74,6 @@ struct sd_dhcp_route;
void serialize_dhcp_routes(FILE *f, const char *key, struct sd_dhcp_route *routes, size_t size);
int deserialize_dhcp_routes(struct sd_dhcp_route **ret, size_t *ret_size, size_t *ret_allocated, const char *string);
+
+int serialize_dhcp_option(FILE *f, const char *key, const uint8_t *data, size_t size);
+int deserialize_dhcp_option(uint8_t **data, size_t *data_len, const char *string);
diff --git a/src/libsystemd-network/sd-dhcp-lease.c b/src/libsystemd-network/sd-dhcp-lease.c
index c6b4f0a3ae..3d0c8ff890 100644
--- a/src/libsystemd-network/sd-dhcp-lease.c
+++ b/src/libsystemd-network/sd-dhcp-lease.c
@@ -676,6 +676,7 @@ int dhcp_lease_new(sd_dhcp_lease **ret) {
int sd_dhcp_lease_save(sd_dhcp_lease *lease, const char *lease_file) {
_cleanup_free_ char *temp_path = NULL;
_cleanup_fclose_ FILE *f = NULL;
+ struct sd_dhcp_raw_option *option;
struct in_addr address;
const struct in_addr *addresses;
const uint8_t *client_id, *data;
@@ -777,6 +778,14 @@ int sd_dhcp_lease_save(sd_dhcp_lease *lease, const char *lease_file) {
fprintf(f, "VENDOR_SPECIFIC=%s\n", option_hex);
}
+ LIST_FOREACH(options, option, lease->private_options) {
+ char key[strlen("OPTION_000")];
+ snprintf(key, sizeof(key), "OPTION_%"PRIu8, option->tag);
+ r = serialize_dhcp_option(f, key, option->data, option->length);
+ if (r < 0)
+ goto fail;
+ }
+
r = fflush_and_check(f);
if (r < 0)
goto fail;
@@ -801,9 +810,11 @@ int sd_dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file) {
*server_address = NULL, *next_server = NULL,
*dns = NULL, *ntp = NULL, *mtu = NULL,
*routes = NULL, *client_id_hex = NULL,
- *vendor_specific_hex = NULL;
+ *vendor_specific_hex = NULL,
+ *options[DHCP_OPTION_PRIVATE_LAST -
+ DHCP_OPTION_PRIVATE_BASE + 1] = { NULL };
struct in_addr addr;
- int r;
+ int r, i;
assert(lease_file);
assert(ret);
@@ -827,6 +838,37 @@ int sd_dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file) {
"ROUTES", &routes,
"CLIENTID", &client_id_hex,
"VENDOR_SPECIFIC", &vendor_specific_hex,
+ "OPTION_224", &options[0],
+ "OPTION_225", &options[1],
+ "OPTION_226", &options[2],
+ "OPTION_227", &options[3],
+ "OPTION_228", &options[4],
+ "OPTION_229", &options[5],
+ "OPTION_230", &options[6],
+ "OPTION_231", &options[7],
+ "OPTION_232", &options[8],
+ "OPTION_233", &options[9],
+ "OPTION_234", &options[10],
+ "OPTION_235", &options[11],
+ "OPTION_236", &options[12],
+ "OPTION_237", &options[13],
+ "OPTION_238", &options[14],
+ "OPTION_239", &options[15],
+ "OPTION_240", &options[16],
+ "OPTION_241", &options[17],
+ "OPTION_242", &options[18],
+ "OPTION_243", &options[19],
+ "OPTION_244", &options[20],
+ "OPTION_245", &options[21],
+ "OPTION_246", &options[22],
+ "OPTION_247", &options[23],
+ "OPTION_248", &options[24],
+ "OPTION_249", &options[25],
+ "OPTION_250", &options[26],
+ "OPTION_251", &options[27],
+ "OPTION_252", &options[28],
+ "OPTION_253", &options[29],
+ "OPTION_254", &options[30],
NULL);
if (r < 0) {
if (r == -ENOENT)
@@ -918,6 +960,22 @@ int sd_dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file) {
return r;
}
+ for (i = 0; i <= DHCP_OPTION_PRIVATE_LAST - DHCP_OPTION_PRIVATE_BASE; i++) {
+ uint8_t *data;
+ size_t len;
+
+ if (!options[i])
+ continue;
+
+ r = deserialize_dhcp_option(&data, &len, options[i]);
+ if (r < 0)
+ return r;
+
+ r = dhcp_lease_insert_private_option(lease, DHCP_OPTION_PRIVATE_BASE + i, data, len);
+ if (r < 0)
+ return r;
+ }
+
*ret = lease;
lease = NULL;