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Diffstat (limited to 'src/libsystemd-network/network-internal.c')
-rw-r--r--src/libsystemd-network/network-internal.c289
1 files changed, 167 insertions, 122 deletions
diff --git a/src/libsystemd-network/network-internal.c b/src/libsystemd-network/network-internal.c
index d579755cc8..9d78b953fc 100644
--- a/src/libsystemd-network/network-internal.c
+++ b/src/libsystemd-network/network-internal.c
@@ -1,5 +1,3 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
/***
This file is part of systemd.
@@ -19,19 +17,27 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <netinet/ether.h>
-#include <linux/if.h>
#include <arpa/inet.h>
+#include <linux/if.h>
+#include <netinet/ether.h>
-#include "strv.h"
-#include "siphash24.h"
+#include "sd-ndisc.h"
+
+#include "alloc-util.h"
+#include "condition.h"
+#include "conf-parser.h"
#include "dhcp-lease-internal.h"
+#include "ether-addr-util.h"
+#include "hexdecoct.h"
#include "log.h"
+#include "network-internal.h"
+#include "parse-util.h"
+#include "siphash24.h"
+#include "socket-util.h"
+#include "string-util.h"
+#include "strv.h"
#include "utf8.h"
#include "util.h"
-#include "conf-parser.h"
-#include "condition.h"
-#include "network-internal.h"
const char *net_get_name(struct udev_device *device) {
const char *name, *field;
@@ -50,7 +56,7 @@ const char *net_get_name(struct udev_device *device) {
#define HASH_KEY SD_ID128_MAKE(d3,1e,48,fa,90,fe,4b,4c,9d,af,d5,d7,a1,b1,2e,8a)
-int net_get_unique_predictable_data(struct udev_device *device, uint8_t result[8]) {
+int net_get_unique_predictable_data(struct udev_device *device, uint64_t *result) {
size_t l, sz = 0;
const char *name = NULL;
int r;
@@ -75,7 +81,7 @@ int net_get_unique_predictable_data(struct udev_device *device, uint8_t result[8
/* Let's hash the machine ID plus the device name. We
* use a fixed, but originally randomly created hash
* key here. */
- siphash24(result, v, sz, HASH_KEY.bytes);
+ *result = htole64(siphash24(v, sz, HASH_KEY.bytes));
return 0;
}
@@ -96,16 +102,16 @@ bool net_match_config(const struct ether_addr *match_mac,
const char *dev_type,
const char *dev_name) {
- if (match_host && !condition_test(match_host))
+ if (match_host && condition_test(match_host) <= 0)
return false;
- if (match_virt && !condition_test(match_virt))
+ if (match_virt && condition_test(match_virt) <= 0)
return false;
- if (match_kernel && !condition_test(match_kernel))
+ if (match_kernel && condition_test(match_kernel) <= 0)
return false;
- if (match_arch && !condition_test(match_arch))
+ if (match_arch && condition_test(match_arch) <= 0)
return false;
if (match_mac && (!dev_mac || memcmp(match_mac, dev_mac, ETH_ALEN)))
@@ -171,59 +177,19 @@ int config_parse_net_condition(const char *unit,
return 0;
}
-int config_parse_ifname(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) {
-
- char **s = data;
- _cleanup_free_ char *n = NULL;
-
- 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);
- return 0;
- }
-
- free(*s);
- if (*n) {
- *s = n;
- n = NULL;
- } else
- *s = NULL;
-
- return 0;
-}
-
-int config_parse_ifnames(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) {
+int config_parse_ifnames(
+ 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) {
char ***sv = data;
- const char *word, *state;
- size_t l;
int r;
assert(filename);
@@ -231,23 +197,27 @@ int config_parse_ifnames(const char *unit,
assert(rvalue);
assert(data);
- FOREACH_WORD(word, l, rvalue, state) {
- char *n;
+ for (;;) {
+ _cleanup_free_ char *word = NULL;
- n = strndup(word, l);
- if (!n)
- return log_oom();
+ r = extract_first_word(&rvalue, &word, NULL, 0);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse interface name list: %s", rvalue);
+ return 0;
+ }
+ if (r == 0)
+ break;
- 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);
+ if (!ifname_valid(word)) {
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Interface name is not valid or too long, ignoring assignment: %s", rvalue);
return 0;
}
- r = strv_consume(sv, n);
+ r = strv_push(sv, word);
if (r < 0)
return log_oom();
+
+ word = NULL;
}
return 0;
@@ -277,8 +247,7 @@ int config_parse_ifalias(const char *unit,
return log_oom();
if (!ascii_is_valid(n) || strlen(n) >= IFALIASZ) {
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
- "Interface alias is not ASCII clean or is too long, ignoring assignment: %s", rvalue);
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Interface alias is not ASCII clean or is too long, ignoring assignment: %s", rvalue);
return 0;
}
@@ -304,6 +273,8 @@ int config_parse_hwaddr(const char *unit,
void *userdata) {
struct ether_addr **hwaddr = data;
struct ether_addr *n;
+ const char *start;
+ size_t offset;
int r;
assert(filename);
@@ -315,16 +286,11 @@ int config_parse_hwaddr(const char *unit,
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);
+ start = rvalue + strspn(rvalue, WHITESPACE);
+ r = ether_addr_from_string(start, n, &offset);
+
+ if (r || (start[offset + strspn(start + offset, WHITESPACE)] != '\0')) {
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Not a valid MAC address, ignoring assignment: %s", rvalue);
free(n);
return 0;
}
@@ -335,6 +301,36 @@ int config_parse_hwaddr(const char *unit,
return 0;
}
+int config_parse_iaid(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) {
+ uint32_t iaid;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = safe_atou32(rvalue, &iaid);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Unable to read IAID, ignoring assignment: %s", rvalue);
+ return 0;
+ }
+
+ *((uint32_t *)data) = iaid;
+
+ return 0;
+}
+
void serialize_in_addrs(FILE *f, const struct in_addr *addresses, size_t size) {
unsigned i;
@@ -350,32 +346,32 @@ void serialize_in_addrs(FILE *f, const struct in_addr *addresses, size_t size) {
int deserialize_in_addrs(struct in_addr **ret, const char *string) {
_cleanup_free_ struct in_addr *addresses = NULL;
int size = 0;
- const char *word, *state;
- size_t len;
assert(ret);
assert(string);
- FOREACH_WORD(word, len, string, state) {
- _cleanup_free_ char *addr_str = NULL;
+ for (;;) {
+ _cleanup_free_ char *word = NULL;
struct in_addr *new_addresses;
int r;
+ r = extract_first_word(&string, &word, NULL, 0);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ break;
+
new_addresses = realloc(addresses, (size + 1) * sizeof(struct in_addr));
if (!new_addresses)
return -ENOMEM;
else
addresses = new_addresses;
- addr_str = strndup(word, len);
- if (!addr_str)
- return -ENOMEM;
-
- r = inet_pton(AF_INET, addr_str, &(addresses[size]));
+ r = inet_pton(AF_INET, word, &(addresses[size]));
if (r <= 0)
continue;
- size ++;
+ size++;
}
*ret = addresses;
@@ -384,31 +380,48 @@ int deserialize_in_addrs(struct in_addr **ret, const char *string) {
return size;
}
+void serialize_in6_addrs(FILE *f, const struct in6_addr *addresses, size_t size) {
+ unsigned i;
+
+ assert(f);
+ assert(addresses);
+ assert(size);
+
+ for (i = 0; i < size; i++) {
+ char buffer[INET6_ADDRSTRLEN];
+
+ fputs(inet_ntop(AF_INET6, addresses+i, buffer, sizeof(buffer)), f);
+
+ if (i < size - 1)
+ fputc(' ', f);
+ }
+}
+
int deserialize_in6_addrs(struct in6_addr **ret, const char *string) {
_cleanup_free_ struct in6_addr *addresses = NULL;
int size = 0;
- const char *word, *state;
- size_t len;
assert(ret);
assert(string);
- FOREACH_WORD(word, len, string, state) {
- _cleanup_free_ char *addr_str = NULL;
+ for (;;) {
+ _cleanup_free_ char *word = NULL;
struct in6_addr *new_addresses;
int r;
+ r = extract_first_word(&string, &word, NULL, 0);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ break;
+
new_addresses = realloc(addresses, (size + 1) * sizeof(struct in6_addr));
if (!new_addresses)
return -ENOMEM;
else
addresses = new_addresses;
- addr_str = strndup(word, len);
- if (!addr_str)
- return -ENOMEM;
-
- r = inet_pton(AF_INET6, addr_str, &(addresses[size]));
+ r = inet_pton(AF_INET6, word, &(addresses[size]));
if (r <= 0)
continue;
@@ -421,7 +434,7 @@ int deserialize_in6_addrs(struct in6_addr **ret, const char *string) {
return size;
}
-void serialize_dhcp_routes(FILE *f, const char *key, struct sd_dhcp_route *routes, size_t size) {
+void serialize_dhcp_routes(FILE *f, const char *key, sd_dhcp_route **routes, size_t size) {
unsigned i;
assert(f);
@@ -432,10 +445,15 @@ void serialize_dhcp_routes(FILE *f, const char *key, struct sd_dhcp_route *route
fprintf(f, "%s=", key);
for (i = 0; i < size; i++) {
- fprintf(f, "%s/%" PRIu8, inet_ntoa(routes[i].dst_addr),
- routes[i].dst_prefixlen);
- fprintf(f, ",%s%s", inet_ntoa(routes[i].gw_addr),
- (i < (size - 1)) ? " ": "");
+ struct in_addr dest, gw;
+ uint8_t length;
+
+ assert_se(sd_dhcp_route_get_destination(routes[i], &dest) >= 0);
+ assert_se(sd_dhcp_route_get_gateway(routes[i], &gw) >= 0);
+ assert_se(sd_dhcp_route_get_destination_prefix_length(routes[i], &length) >= 0);
+
+ fprintf(f, "%s/%" PRIu8, inet_ntoa(dest), length);
+ fprintf(f, ",%s%s", inet_ntoa(gw), (i < (size - 1)) ? " ": "");
}
fputs("\n", f);
@@ -444,29 +462,29 @@ void serialize_dhcp_routes(FILE *f, const char *key, struct sd_dhcp_route *route
int deserialize_dhcp_routes(struct sd_dhcp_route **ret, size_t *ret_size, size_t *ret_allocated, const char *string) {
_cleanup_free_ struct sd_dhcp_route *routes = NULL;
size_t size = 0, allocated = 0;
- const char *word, *state;
- size_t len;
assert(ret);
assert(ret_size);
assert(ret_allocated);
assert(string);
- FOREACH_WORD(word, len, string, state) {
- /* WORD FORMAT: dst_ip/dst_prefixlen,gw_ip */
- _cleanup_free_ char* entry = NULL;
+ /* WORD FORMAT: dst_ip/dst_prefixlen,gw_ip */
+ for (;;) {
+ _cleanup_free_ char *word = NULL;
char *tok, *tok_end;
unsigned n;
int r;
- if (!GREEDY_REALLOC(routes, allocated, size + 1))
- return -ENOMEM;
+ r = extract_first_word(&string, &word, NULL, 0);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ break;
- entry = strndup(word, len);
- if(!entry)
+ if (!GREEDY_REALLOC(routes, allocated, size + 1))
return -ENOMEM;
- tok = entry;
+ tok = word;
/* get the subnet */
tok_end = strchr(tok, '/');
@@ -509,3 +527,30 @@ 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 void *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(void **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);
+}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-22 23:30:09 +0000