networkd: monopolize in_addr utility functions in shared/in-addr-util.h
Primarily, this means we get rid of net_parse_inaddr(), and replace it everywhere with in_addr_from_string() and in_addr_from_string_auto(). These functions do not clobber the callers arguments on failure, which is more close to our usual coding style.
This commit is contained in:
parent
cedc8c44d4
commit
44e7b94926
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@ -27,28 +27,27 @@
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#include "strv.h"
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#include "strv.h"
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#include "siphash24.h"
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#include "siphash24.h"
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#include "libudev-private.h"
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#include "libudev-private.h"
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#include "network-internal.h"
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#include "dhcp-lease-internal.h"
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#include "dhcp-lease-internal.h"
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#include "log.h"
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#include "log.h"
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#include "utf8.h"
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#include "utf8.h"
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#include "util.h"
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#include "util.h"
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#include "conf-parser.h"
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#include "conf-parser.h"
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#include "condition.h"
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#include "condition.h"
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#include "network-internal.h"
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const char *net_get_name(struct udev_device *device) {
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const char *net_get_name(struct udev_device *device) {
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const char *name = NULL, *field = NULL;
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const char *name, *field;
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assert(device);
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assert(device);
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/* fetch some persistent data unique (on this machine) to this device */
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/* fetch some persistent data unique (on this machine) to this device */
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FOREACH_STRING(field, "ID_NET_NAME_ONBOARD", "ID_NET_NAME_SLOT",
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FOREACH_STRING(field, "ID_NET_NAME_ONBOARD", "ID_NET_NAME_SLOT", "ID_NET_NAME_PATH", "ID_NET_NAME_MAC") {
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"ID_NET_NAME_PATH", "ID_NET_NAME_MAC") {
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name = udev_device_get_property_value(device, field);
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name = udev_device_get_property_value(device, field);
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if (name)
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if (name)
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break;
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return name;
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}
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}
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return name;
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return NULL;
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}
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}
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#define HASH_KEY SD_ID128_MAKE(d3,1e,48,fa,90,fe,4b,4c,9d,af,d5,d7,a1,b1,2e,8a)
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#define HASH_KEY SD_ID128_MAKE(d3,1e,48,fa,90,fe,4b,4c,9d,af,d5,d7,a1,b1,2e,8a)
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@ -133,12 +132,6 @@ bool net_match_config(const struct ether_addr *match_mac,
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return 1;
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return 1;
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}
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}
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unsigned net_netmask_to_prefixlen(const struct in_addr *addr) {
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assert(addr);
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return 32 - u32ctz(be32toh(addr->s_addr));
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}
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int config_parse_net_condition(const char *unit,
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int config_parse_net_condition(const char *unit,
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const char *filename,
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const char *filename,
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unsigned line,
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unsigned line,
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@ -304,41 +297,6 @@ int config_parse_hwaddr(const char *unit,
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return 0;
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return 0;
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}
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}
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int net_parse_inaddr(const char *address, int *family, void *dst) {
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int r;
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assert(address);
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assert(family);
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assert(dst);
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/* IPv4 */
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r = inet_pton(AF_INET, address, dst);
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if (r > 0) {
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/* succsefully parsed IPv4 address */
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if (*family == AF_UNSPEC)
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*family = AF_INET;
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else if (*family != AF_INET)
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return -EINVAL;
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} else if (r < 0)
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return -errno;
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else {
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/* not an IPv4 address, so let's try IPv6 */
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r = inet_pton(AF_INET6, address, dst);
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if (r > 0) {
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/* successfully parsed IPv6 address */
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if (*family == AF_UNSPEC)
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*family = AF_INET6;
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else if (*family != AF_INET6)
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return -EINVAL;
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} else if (r < 0)
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return -errno;
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else
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return -EINVAL;
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}
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return 0;
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}
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void serialize_in_addrs(FILE *f, const struct in_addr *addresses, size_t size) {
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void serialize_in_addrs(FILE *f, const struct in_addr *addresses, size_t size) {
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unsigned i;
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unsigned i;
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@ -1,5 +1,7 @@
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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#pragma once
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/***
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/***
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This file is part of systemd.
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This file is part of systemd.
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@ -19,8 +21,6 @@
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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***/
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#pragma once
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#include <netinet/ether.h>
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#include <netinet/ether.h>
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#include <netinet/in.h>
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#include <netinet/in.h>
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#include <stdbool.h>
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#include <stdbool.h>
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@ -44,8 +44,6 @@ bool net_match_config(const struct ether_addr *match_mac,
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const char *dev_type,
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const char *dev_type,
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const char *dev_name);
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const char *dev_name);
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unsigned net_netmask_to_prefixlen(const struct in_addr *netmask);
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int config_parse_net_condition(const char *unit, const char *filename, unsigned line,
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int config_parse_net_condition(const char *unit, const char *filename, unsigned line,
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const char *section, unsigned section_line, const char *lvalue,
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const char *section, unsigned section_line, const char *lvalue,
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int ltype, const char *rvalue, void *data, void *userdata);
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int ltype, const char *rvalue, void *data, void *userdata);
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@ -62,8 +60,6 @@ int config_parse_ifalias(const char *unit, const char *filename, unsigned line,
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const char *section, unsigned section_line, const char *lvalue,
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const char *section, unsigned section_line, const char *lvalue,
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int ltype, const char *rvalue, void *data, void *userdata);
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int ltype, const char *rvalue, void *data, void *userdata);
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int net_parse_inaddr(const char *address, int *family, void *dst);
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int net_get_unique_predictable_data(struct udev_device *device, uint8_t result[8]);
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int net_get_unique_predictable_data(struct udev_device *device, uint8_t result[8]);
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const char *net_get_name(struct udev_device *device);
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const char *net_get_name(struct udev_device *device);
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@ -394,7 +394,8 @@ int address_configure(Address *address, Link *link,
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return 0;
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return 0;
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}
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}
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int config_parse_broadcast(const char *unit,
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int config_parse_broadcast(
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const char *unit,
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const char *filename,
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const char *filename,
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unsigned line,
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unsigned line,
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const char *section,
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const char *section,
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@ -404,9 +405,9 @@ int config_parse_broadcast(const char *unit,
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const char *rvalue,
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const char *rvalue,
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void *data,
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void *data,
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void *userdata) {
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void *userdata) {
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Network *network = userdata;
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Network *network = userdata;
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_cleanup_address_free_ Address *n = NULL;
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_cleanup_address_free_ Address *n = NULL;
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_cleanup_free_ char *address = NULL;
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int r;
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int r;
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assert(filename);
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assert(filename);
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@ -421,18 +422,18 @@ int config_parse_broadcast(const char *unit,
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if (n->family == AF_INET6) {
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if (n->family == AF_INET6) {
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log_syntax(unit, LOG_ERR, filename, line, EINVAL,
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log_syntax(unit, LOG_ERR, filename, line, EINVAL,
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"Broadcast is not valid for IPv6 addresses, "
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"Broadcast is not valid for IPv6 addresses, ignoring assignment: %s", rvalue);
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"ignoring assignment: %s", address);
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return 0;
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return 0;
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}
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}
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r = net_parse_inaddr(address, &n->family, &n->broadcast);
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r = in_addr_from_string(AF_INET, rvalue, (union in_addr_union*) &n->broadcast);
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if (r < 0) {
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if (r < 0) {
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log_syntax(unit, LOG_ERR, filename, line, EINVAL,
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log_syntax(unit, LOG_ERR, filename, line, EINVAL,
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"Broadcast is invalid, ignoring assignment: %s", address);
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"Broadcast is invalid, ignoring assignment: %s", rvalue);
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return 0;
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return 0;
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}
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}
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n->family = AF_INET;
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n = NULL;
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n = NULL;
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return 0;
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return 0;
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@ -448,12 +449,12 @@ int config_parse_address(const char *unit,
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const char *rvalue,
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const char *rvalue,
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void *data,
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void *data,
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void *userdata) {
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void *userdata) {
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Network *network = userdata;
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Network *network = userdata;
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_cleanup_address_free_ Address *n = NULL;
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_cleanup_address_free_ Address *n = NULL;
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_cleanup_free_ char *address = NULL;
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const char *address, *e;
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union in_addr_union *addr;
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union in_addr_union buffer;
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const char *e;
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int r, f;
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int r;
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assert(filename);
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assert(filename);
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assert(section);
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assert(section);
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@ -471,11 +472,6 @@ int config_parse_address(const char *unit,
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if (r < 0)
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if (r < 0)
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return r;
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return r;
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if (streq(lvalue, "Address"))
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addr = &n->in_addr;
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else
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addr = &n->in_addr_peer;
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/* Address=address/prefixlen */
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/* Address=address/prefixlen */
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/* prefixlen */
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/* prefixlen */
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@ -485,32 +481,38 @@ int config_parse_address(const char *unit,
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r = safe_atou(e + 1, &i);
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r = safe_atou(e + 1, &i);
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if (r < 0) {
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if (r < 0) {
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log_syntax(unit, LOG_ERR, filename, line, EINVAL,
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log_syntax(unit, LOG_ERR, filename, line, EINVAL,
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"Interface prefix length is invalid, "
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"Interface prefix length is invalid, ignoring assignment: %s", e + 1);
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"ignoring assignment: %s", e + 1);
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return 0;
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return 0;
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}
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}
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n->prefixlen = (unsigned char) i;
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n->prefixlen = (unsigned char) i;
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address = strndup(rvalue, e - rvalue);
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address = strndupa(rvalue, e - rvalue);
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if (!address)
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} else
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return log_oom();
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address = rvalue;
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} else {
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address = strdup(rvalue);
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if (!address)
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return log_oom();
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}
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r = net_parse_inaddr(address, &n->family, addr);
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r = in_addr_from_string_auto(address, &f, &buffer);
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if (r < 0) {
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if (r < 0) {
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log_syntax(unit, LOG_ERR, filename, line, EINVAL,
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log_syntax(unit, LOG_ERR, filename, line, EINVAL,
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"Address is invalid, ignoring assignment: %s", address);
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"Address is invalid, ignoring assignment: %s", address);
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return 0;
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return 0;
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}
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}
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if (n->family == AF_INET && !n->broadcast.s_addr)
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if (n->family != AF_UNSPEC && f != n->family) {
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n->broadcast.s_addr = n->in_addr.in.s_addr |
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log_syntax(unit, LOG_ERR, filename, line, EINVAL,
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htonl(0xfffffffflu >> n->prefixlen);
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"Address is incompatible, ignoring assignment: %s", address);
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return 0;
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}
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n->family = f;
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if (streq(lvalue, "Address"))
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n->in_addr = buffer;
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else
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n->in_addr_peer = buffer;
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if (n->family == AF_INET && n->broadcast.s_addr == 0)
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n->broadcast.s_addr = n->in_addr.in.s_addr | htonl(0xfffffffflu >> n->prefixlen);
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n = NULL;
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n = NULL;
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@ -750,7 +750,7 @@ static int link_enter_set_addresses(Link *link) {
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return r;
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return r;
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}
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}
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prefixlen = net_netmask_to_prefixlen(&netmask);
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prefixlen = in_addr_netmask_to_prefixlen(&netmask);
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r = address_new_dynamic(&address);
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r = address_new_dynamic(&address);
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if (r < 0) {
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if (r < 0) {
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sd_dhcp_lease_get_address(link->dhcp_lease, &addr);
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sd_dhcp_lease_get_address(link->dhcp_lease, &addr);
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sd_dhcp_lease_get_netmask(link->dhcp_lease, &netmask);
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sd_dhcp_lease_get_netmask(link->dhcp_lease, &netmask);
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prefixlen = net_netmask_to_prefixlen(&netmask);
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prefixlen = in_addr_netmask_to_prefixlen(&netmask);
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address->family = AF_INET;
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address->family = AF_INET;
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address->in_addr.in = addr;
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address->in_addr.in = addr;
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@ -1073,7 +1073,7 @@ static int dhcp_lease_acquired(sd_dhcp_client *client, Link *link) {
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return r;
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return r;
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}
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}
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prefixlen = net_netmask_to_prefixlen(&netmask);
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prefixlen = in_addr_netmask_to_prefixlen(&netmask);
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r = sd_dhcp_lease_get_router(lease, &gateway);
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r = sd_dhcp_lease_get_router(lease, &gateway);
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if (r < 0 && r != -ENOENT) {
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if (r < 0 && r != -ENOENT) {
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@ -266,21 +266,28 @@ int config_parse_tunnel_address(const char *unit,
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void *data,
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void *data,
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void *userdata) {
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void *userdata) {
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Tunnel *t = userdata;
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Tunnel *t = userdata;
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union in_addr_union *addr = data;
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union in_addr_union *addr = data, buffer;
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int r;
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int r, f;
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assert(filename);
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assert(filename);
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assert(lvalue);
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assert(lvalue);
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assert(rvalue);
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assert(rvalue);
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assert(data);
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assert(data);
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r = net_parse_inaddr(rvalue, &t->family, addr);
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r = in_addr_from_string_auto(rvalue, &f, &buffer);
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if (r < 0) {
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if (r < 0) {
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log_syntax(unit, LOG_ERR, filename, line, EINVAL,
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log_syntax(unit, LOG_ERR, filename, line, EINVAL, "Tunnel address is invalid, ignoring assignment: %s", rvalue);
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"Tunnel address is invalid, ignoring assignment: %s", rvalue);
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return 0;
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return 0;
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}
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}
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if (t->family != AF_UNSPEC && t->family != f) {
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log_syntax(unit, LOG_ERR, filename, line, EINVAL, "Tunnel addresses incompatible, ignoring assignment: %s", rvalue);
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return 0;
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}
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t->family = f;
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*addr = buffer;
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return 0;
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return 0;
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}
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}
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@ -256,10 +256,11 @@ int config_parse_gateway(const char *unit,
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const char *rvalue,
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const char *rvalue,
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void *data,
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void *data,
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void *userdata) {
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void *userdata) {
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Network *network = userdata;
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Network *network = userdata;
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_cleanup_route_free_ Route *n = NULL;
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_cleanup_route_free_ Route *n = NULL;
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_cleanup_free_ char *route = NULL;
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union in_addr_union buffer;
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int r;
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int r, f;
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assert(filename);
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assert(filename);
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assert(section);
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assert(section);
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@ -277,13 +278,15 @@ int config_parse_gateway(const char *unit,
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if (r < 0)
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if (r < 0)
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return r;
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return r;
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r = net_parse_inaddr(rvalue, &n->family, &n->in_addr);
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r = in_addr_from_string_auto(rvalue, &f, &buffer);
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if (r < 0) {
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if (r < 0) {
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log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
||||||
"Route is invalid, ignoring assignment: %s", route);
|
"Route is invalid, ignoring assignment: %s", rvalue);
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
n->family = f;
|
||||||
|
n->in_addr = buffer;
|
||||||
n = NULL;
|
n = NULL;
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
|
@ -299,11 +302,12 @@ int config_parse_destination(const char *unit,
|
||||||
const char *rvalue,
|
const char *rvalue,
|
||||||
void *data,
|
void *data,
|
||||||
void *userdata) {
|
void *userdata) {
|
||||||
|
|
||||||
Network *network = userdata;
|
Network *network = userdata;
|
||||||
_cleanup_route_free_ Route *n = NULL;
|
_cleanup_route_free_ Route *n = NULL;
|
||||||
_cleanup_free_ char *address = NULL;
|
const char *address, *e;
|
||||||
const char *e;
|
union in_addr_union buffer;
|
||||||
int r;
|
int r, f;
|
||||||
|
|
||||||
assert(filename);
|
assert(filename);
|
||||||
assert(section);
|
assert(section);
|
||||||
|
@ -319,17 +323,12 @@ int config_parse_destination(const char *unit,
|
||||||
|
|
||||||
/* address */
|
/* address */
|
||||||
e = strchr(rvalue, '/');
|
e = strchr(rvalue, '/');
|
||||||
if (e) {
|
if (e)
|
||||||
address = strndup(rvalue, e - rvalue);
|
address = strndupa(rvalue, e - rvalue);
|
||||||
if (!address)
|
else
|
||||||
return log_oom();
|
address = rvalue;
|
||||||
} else {
|
|
||||||
address = strdup(rvalue);
|
|
||||||
if (!address)
|
|
||||||
return log_oom();
|
|
||||||
}
|
|
||||||
|
|
||||||
r = net_parse_inaddr(address, &n->family, &n->dst_addr);
|
r = in_addr_from_string_auto(address, &f, &buffer);
|
||||||
if (r < 0) {
|
if (r < 0) {
|
||||||
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
||||||
"Destination is invalid, ignoring assignment: %s", address);
|
"Destination is invalid, ignoring assignment: %s", address);
|
||||||
|
@ -343,8 +342,7 @@ int config_parse_destination(const char *unit,
|
||||||
r = safe_atou(e + 1, &i);
|
r = safe_atou(e + 1, &i);
|
||||||
if (r < 0) {
|
if (r < 0) {
|
||||||
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
||||||
"Route destination prefix length is invalid, "
|
"Route destination prefix length is invalid, ignoring assignment: %s", e + 1);
|
||||||
"ignoring assignment: %s", e + 1);
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -360,6 +358,8 @@ int config_parse_destination(const char *unit,
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
n->family = f;
|
||||||
|
n->dst_addr = buffer;
|
||||||
n = NULL;
|
n = NULL;
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
|
|
|
@ -242,3 +242,9 @@ int in_addr_from_string_auto(const char *s, int *family, union in_addr_union *re
|
||||||
|
|
||||||
return -EINVAL;
|
return -EINVAL;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
unsigned in_addr_netmask_to_prefixlen(const struct in_addr *addr) {
|
||||||
|
assert(addr);
|
||||||
|
|
||||||
|
return 32 - u32ctz(be32toh(addr->s_addr));
|
||||||
|
}
|
||||||
|
|
|
@ -39,6 +39,7 @@ int in_addr_prefix_next(int family, union in_addr_union *u, unsigned prefixlen);
|
||||||
int in_addr_to_string(int family, const union in_addr_union *u, char **ret);
|
int in_addr_to_string(int family, const union in_addr_union *u, char **ret);
|
||||||
int in_addr_from_string(int family, const char *s, union in_addr_union *ret);
|
int in_addr_from_string(int family, const char *s, union in_addr_union *ret);
|
||||||
int in_addr_from_string_auto(const char *s, int *family, union in_addr_union *ret);
|
int in_addr_from_string_auto(const char *s, int *family, union in_addr_union *ret);
|
||||||
|
unsigned in_addr_netmask_to_prefixlen(const struct in_addr *addr);
|
||||||
|
|
||||||
static inline size_t FAMILY_ADDRESS_SIZE(int family) {
|
static inline size_t FAMILY_ADDRESS_SIZE(int family) {
|
||||||
assert(family == AF_INET || family == AF_INET6);
|
assert(family == AF_INET || family == AF_INET6);
|
||||||
|
|
Loading…
Reference in New Issue