示例#1
0
static int dhcp6_address_handler(sd_netlink *rtnl, sd_netlink_message *m,
                                 void *userdata) {
        _cleanup_link_unref_ Link *link = userdata;
        int r;

        assert(link);

        r = sd_netlink_message_get_errno(m);
        if (r < 0 && r != -EEXIST) {
                if (link->rtnl_extended_attrs) {
                        log_link_warning(link, "Could not set extended netlink attributes, reverting to fallback mechanism");

                        link->rtnl_extended_attrs = false;
                        dhcp6_lease_address_acquired(link->dhcp6_client, link);

                        return 1;
                }

                log_link_error_errno(link, r, "Could not set DHCPv6 address: %m");

                link_enter_failed(link);

        } else if (r >= 0)
                manager_rtnl_process_address(rtnl, m, link->manager);

        return 1;
}
int link_routing_policy_rule_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
        _cleanup_link_unref_ Link *link = userdata;
        int r;

        assert(rtnl);
        assert(m);
        assert(link);
        assert(link->ifname);
        assert(link->routing_policy_rule_messages > 0);

        link->routing_policy_rule_messages--;

        if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
                return 1;

        r = sd_netlink_message_get_errno(m);
        if (r < 0 && r != -EEXIST)
                log_link_warning_errno(link, r, "Could not add routing policy rule: %m");

        if (link->routing_policy_rule_messages == 0) {
                log_link_debug(link, "Routing policy rule configured");
                link->routing_policy_rules_configured = true;
                link_check_ready(link);
        }

        return 1;
}
示例#3
0
static int set_brvlan_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
        int r;

        assert(link);

        r = sd_netlink_message_get_errno(m);
        if (r < 0 && r != -EEXIST)
                log_link_error_errno(link, r, "Could not add VLAN to bridge port: %m");

        return 1;
}
示例#4
0
static int set_fdb_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
        Link *link = userdata;
        int r;

        assert(link);

        r = sd_netlink_message_get_errno(m);
        if (r < 0 && r != -EEXIST)
                log_link_error_errno(link, r, "Could not add FDB entry: %m");

        return 1;
}
示例#5
0
static int pipe_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
        int *counter = userdata;
        int r;

        (*counter)--;

        r = sd_netlink_message_get_errno(m);

        log_info_errno(r, "%d left in pipe. got reply: %m", *counter);

        assert_se(r >= 0);

        return 1;
}
示例#6
0
文件: bridge.c 项目: l10n-tw/systemd
/* callback for bridge netdev's parameter set */
static int netdev_bridge_set_handler(sd_netlink *rtnl, sd_netlink_message *m, NetDev *netdev) {
        int r;

        assert(netdev);
        assert(m);

        r = sd_netlink_message_get_errno(m);
        if (r < 0) {
                log_netdev_warning_errno(netdev, r, "Bridge parameters could not be set: %m");
                return 1;
        }

        log_netdev_debug(netdev, "Bridge parameters set success");

        return 1;
}
示例#7
0
/* callback for brige netdev's parameter set */
static int netdev_bridge_set_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
        _cleanup_netdev_unref_ NetDev *netdev = userdata;
        int r;

        assert(netdev);
        assert(m);

        r = sd_netlink_message_get_errno(m);
        if (r < 0) {
                log_netdev_warning_errno(netdev, r, "Bridge parameters could not be set: %m");
                return 1;
        }

        log_netdev_debug(netdev, "Bridge parametres set success");

        return 1;
}
示例#8
0
static int dhcp4_address_handler(sd_netlink *rtnl, sd_netlink_message *m,
                                 void *userdata) {
        _cleanup_link_unref_ Link *link = userdata;
        int r;

        assert(link);

        r = sd_netlink_message_get_errno(m);
        if (r < 0 && r != -EEXIST) {
                log_link_error_errno(link, r, "Could not set DHCPv4 address: %m");
                link_enter_failed(link);
        } else if (r >= 0)
                manager_rtnl_process_address(rtnl, m, link->manager);

        link_set_dhcp_routes(link);

        return 1;
}
示例#9
0
static int route_expire_callback(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
        Link *link = userdata;
        int r;

        assert(rtnl);
        assert(m);
        assert(link);
        assert(link->ifname);

        if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
                return 1;

        r = sd_netlink_message_get_errno(m);
        if (r < 0 && r != -EEXIST)
                log_link_warning_errno(link, r, "could not remove route: %m");

        return 1;
}
static int routing_policy_rule_remove_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
        _cleanup_link_unref_ Link *link = userdata;
        int r;

        assert(m);
        assert(link);
        assert(link->ifname);

        link->routing_policy_rule_remove_messages--;

        if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
                return 1;

        r = sd_netlink_message_get_errno(m);
        if (r < 0)
                log_link_warning_errno(link, r, "Could not drop routing policy rule: %m");

        return 1;
}
示例#11
0
文件: geneve.c 项目: clemensg/systemd
/* callback for geneve netdev's created without a backing Link */
static int geneve_netdev_create_handler(sd_netlink *rtnl, sd_netlink_message *m, NetDev *netdev) {
        int r;

        assert(netdev);
        assert(netdev->state != _NETDEV_STATE_INVALID);

        r = sd_netlink_message_get_errno(m);
        if (r == -EEXIST)
                log_netdev_info(netdev, "Geneve netdev exists, using existing without changing its parameters");
        else if (r < 0) {
                log_netdev_warning_errno(netdev, r, "Geneve netdev could not be created: %m");
                netdev_drop(netdev);

                return 1;
        }

        log_netdev_debug(netdev, "Geneve created");

        return 1;
}
示例#12
0
static int ipv4ll_route_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
        _cleanup_link_unref_ Link *link = userdata;
        int r;

        assert(link);
        assert(!link->ipv4ll_route);

        r = sd_netlink_message_get_errno(m);
        if (r < 0 && r != -EEXIST) {
                log_link_error_errno(link, r, "could not set ipv4ll route: %m");
                link_enter_failed(link);
        }

        link->ipv4ll_route = true;

        if (link->ipv4ll_address == true)
                link_check_ready(link);

        return 1;
}
示例#13
0
static int dhcp4_route_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
        int r;

        assert(link);
        assert(link->dhcp4_messages > 0);

        link->dhcp4_messages--;

        r = sd_netlink_message_get_errno(m);
        if (r < 0 && r != -EEXIST) {
                log_link_error_errno(link, r, "Could not set DHCPv4 route: %m");
                link_enter_failed(link);
        }

        if (link->dhcp4_messages == 0) {
                link->dhcp4_configured = true;
                link_check_ready(link);
        }

        return 1;
}
示例#14
0
static int ipv4ll_address_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
        _cleanup_link_unref_ Link *link = userdata;
        int r;

        assert(link);
        assert(!link->ipv4ll_address);

        r = sd_netlink_message_get_errno(m);
        if (r < 0 && r != -EEXIST) {
                log_link_error(link, "could not set ipv4ll address: %s", strerror(-r));
                link_enter_failed(link);
        } else if (r >= 0)
                link_rtnl_process_address(rtnl, m, link->manager);

        link->ipv4ll_address = true;

        if (link->ipv4ll_route == true)
                link_client_handler(link);

        return 1;
}
示例#15
0
static int ndisc_netlink_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
        _cleanup_link_unref_ Link *link = userdata;
        int r;

        assert(link);
        assert(link->ndisc_messages > 0);

        link->ndisc_messages--;

        r = sd_netlink_message_get_errno(m);
        if (r < 0 && r != -EEXIST) {
                log_link_error_errno(link, r, "Could not set NDisc route or address: %m");
                link_enter_failed(link);
        }

        if (link->ndisc_messages == 0) {
                link->ndisc_configured = true;
                link_check_ready(link);
        }

        return 1;
}
示例#16
0
static int dhcp4_route_handler(sd_netlink *rtnl, sd_netlink_message *m,
                               void *userdata) {
        _cleanup_link_unref_ Link *link = userdata;
        int r;

        assert(link);
        assert(link->dhcp4_messages);

        link->dhcp4_messages --;

        r = sd_netlink_message_get_errno(m);
        if (r < 0 && r != -EEXIST) {
                log_link_error_errno(link, r, "Could not set DHCPv4 route: %m");
                link_enter_failed(link);
        }

        if (!link->dhcp4_messages) {
                link->dhcp4_configured = true;
                link_check_ready(link);
        }

        return 1;
}
示例#17
0
static int dhcp4_address_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
        int r;

        assert(link);

        r = sd_netlink_message_get_errno(m);
        if (r < 0 && r != -EEXIST) {
                log_link_error_errno(link, r, "Could not set DHCPv4 address: %m");
                link_enter_failed(link);
        } else if (r >= 0)
                manager_rtnl_process_address(rtnl, m, link->manager);

        link_set_dhcp_routes(link);

        /* Add back static routes since kernel removes while DHCPv4 address is removed from when lease expires */
        link_request_set_routes(link);

        if (link->dhcp4_messages == 0) {
                link->dhcp4_configured = true;
                link_check_ready(link);
        }

        return 1;
}
示例#18
0
int local_addresses(sd_netlink *context, int ifindex, int af, struct local_address **ret) {
        _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
        _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
        _cleanup_free_ struct local_address *list = NULL;
        size_t n_list = 0, n_allocated = 0;
        sd_netlink_message *m;
        int r;

        assert(ret);

        if (context)
                rtnl = sd_netlink_ref(context);
        else {
                r = sd_netlink_open(&rtnl);
                if (r < 0)
                        return r;
        }

        r = sd_rtnl_message_new_addr(rtnl, &req, RTM_GETADDR, 0, af);
        if (r < 0)
                return r;

        r = sd_netlink_call(rtnl, req, 0, &reply);
        if (r < 0)
                return r;

        for (m = reply; m; m = sd_netlink_message_next(m)) {
                struct local_address *a;
                unsigned char flags;
                uint16_t type;
                int ifi, family;

                r = sd_netlink_message_get_errno(m);
                if (r < 0)
                        return r;

                r = sd_netlink_message_get_type(m, &type);
                if (r < 0)
                        return r;
                if (type != RTM_NEWADDR)
                        continue;

                r = sd_rtnl_message_addr_get_ifindex(m, &ifi);
                if (r < 0)
                        return r;
                if (ifindex > 0 && ifi != ifindex)
                        continue;

                r = sd_rtnl_message_addr_get_family(m, &family);
                if (r < 0)
                        return r;
                if (af != AF_UNSPEC && af != family)
                        continue;

                r = sd_rtnl_message_addr_get_flags(m, &flags);
                if (r < 0)
                        return r;
                if (flags & IFA_F_DEPRECATED)
                        continue;

                if (!GREEDY_REALLOC0(list, n_allocated, n_list+1))
                        return -ENOMEM;

                a = list + n_list;

                r = sd_rtnl_message_addr_get_scope(m, &a->scope);
                if (r < 0)
                        return r;

                if (ifindex == 0 && IN_SET(a->scope, RT_SCOPE_HOST, RT_SCOPE_NOWHERE))
                        continue;

                switch (family) {

                case AF_INET:
                        r = sd_netlink_message_read_in_addr(m, IFA_LOCAL, &a->address.in);
                        if (r < 0) {
                                r = sd_netlink_message_read_in_addr(m, IFA_ADDRESS, &a->address.in);
                                if (r < 0)
                                        continue;
                        }
                        break;

                case AF_INET6:
                        r = sd_netlink_message_read_in6_addr(m, IFA_LOCAL, &a->address.in6);
                        if (r < 0) {
                                r = sd_netlink_message_read_in6_addr(m, IFA_ADDRESS, &a->address.in6);
                                if (r < 0)
                                        continue;
                        }
                        break;

                default:
                        continue;
                }

                a->ifindex = ifi;
                a->family = family;

                n_list++;
        };

        qsort_safe(list, n_list, sizeof(struct local_address), address_compare);

        *ret = TAKE_PTR(list);

        return (int) n_list;
}
示例#19
0
static void test_message(sd_netlink *rtnl) {
        _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL;

        assert_se(rtnl_message_new_synthetic_error(rtnl, -ETIMEDOUT, 1, &m) >= 0);
        assert_se(sd_netlink_message_get_errno(m) == -ETIMEDOUT);
}
示例#20
0
static int get_gateway_description(
                sd_netlink *rtnl,
                sd_hwdb *hwdb,
                int ifindex,
                int family,
                union in_addr_union *gateway,
                char **gateway_description) {
        _cleanup_netlink_message_unref_ sd_netlink_message *req = NULL, *reply = NULL;
        sd_netlink_message *m;
        int r;

        assert(rtnl);
        assert(ifindex >= 0);
        assert(family == AF_INET || family == AF_INET6);
        assert(gateway);
        assert(gateway_description);

        r = sd_rtnl_message_new_neigh(rtnl, &req, RTM_GETNEIGH, ifindex, family);
        if (r < 0)
                return r;

        r = sd_netlink_message_request_dump(req, true);
        if (r < 0)
                return r;

        r = sd_netlink_call(rtnl, req, 0, &reply);
        if (r < 0)
                return r;

        for (m = reply; m; m = sd_netlink_message_next(m)) {
                union in_addr_union gw = {};
                struct ether_addr mac = {};
                uint16_t type;
                int ifi, fam;

                r = sd_netlink_message_get_errno(m);
                if (r < 0) {
                        log_error_errno(r, "got error: %m");
                        continue;
                }

                r = sd_netlink_message_get_type(m, &type);
                if (r < 0) {
                        log_error_errno(r, "could not get type: %m");
                        continue;
                }

                if (type != RTM_NEWNEIGH) {
                        log_error("type is not RTM_NEWNEIGH");
                        continue;
                }

                r = sd_rtnl_message_neigh_get_family(m, &fam);
                if (r < 0) {
                        log_error_errno(r, "could not get family: %m");
                        continue;
                }

                if (fam != family) {
                        log_error("family is not correct");
                        continue;
                }

                r = sd_rtnl_message_neigh_get_ifindex(m, &ifi);
                if (r < 0) {
                        log_error_errno(r, "could not get ifindex: %m");
                        continue;
                }

                if (ifindex > 0 && ifi != ifindex)
                        continue;

                switch (fam) {
                case AF_INET:
                        r = sd_netlink_message_read_in_addr(m, NDA_DST, &gw.in);
                        if (r < 0)
                                continue;

                        break;
                case AF_INET6:
                        r = sd_netlink_message_read_in6_addr(m, NDA_DST, &gw.in6);
                        if (r < 0)
                                continue;

                        break;
                default:
                        continue;
                }

                if (!in_addr_equal(fam, &gw, gateway))
                        continue;

                r = sd_netlink_message_read_ether_addr(m, NDA_LLADDR, &mac);
                if (r < 0)
                        continue;

                r = ieee_oui(hwdb, &mac, gateway_description);
                if (r < 0)
                        continue;

                return 0;
        }

        return -ENODATA;
}
示例#21
0
int local_gateways(sd_netlink *context, int ifindex, int af, struct local_address **ret) {
        _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
        _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
        _cleanup_free_ struct local_address *list = NULL;
        sd_netlink_message *m = NULL;
        size_t n_list = 0, n_allocated = 0;
        int r;

        assert(ret);

        if (context)
                rtnl = sd_netlink_ref(context);
        else {
                r = sd_netlink_open(&rtnl);
                if (r < 0)
                        return r;
        }

        r = sd_rtnl_message_new_route(rtnl, &req, RTM_GETROUTE, af, RTPROT_UNSPEC);
        if (r < 0)
                return r;

        r = sd_netlink_message_request_dump(req, true);
        if (r < 0)
                return r;

        r = sd_netlink_call(rtnl, req, 0, &reply);
        if (r < 0)
                return r;

        for (m = reply; m; m = sd_netlink_message_next(m)) {
                struct local_address *a;
                uint16_t type;
                unsigned char dst_len, src_len;
                uint32_t ifi;
                int family;

                r = sd_netlink_message_get_errno(m);
                if (r < 0)
                        return r;

                r = sd_netlink_message_get_type(m, &type);
                if (r < 0)
                        return r;
                if (type != RTM_NEWROUTE)
                        continue;

                /* We only care for default routes */
                r = sd_rtnl_message_route_get_dst_prefixlen(m, &dst_len);
                if (r < 0)
                        return r;
                if (dst_len != 0)
                        continue;

                r = sd_rtnl_message_route_get_src_prefixlen(m, &src_len);
                if (r < 0)
                        return r;
                if (src_len != 0)
                        continue;

                r = sd_netlink_message_read_u32(m, RTA_OIF, &ifi);
                if (r == -ENODATA) /* Not all routes have an RTA_OIF attribute (for example nexthop ones) */
                        continue;
                if (r < 0)
                        return r;
                if (ifindex > 0 && (int) ifi != ifindex)
                        continue;

                r = sd_rtnl_message_route_get_family(m, &family);
                if (r < 0)
                        return r;
                if (af != AF_UNSPEC && af != family)
                        continue;

                if (!GREEDY_REALLOC0(list, n_allocated, n_list + 1))
                        return -ENOMEM;

                a = list + n_list;

                switch (family) {
                case AF_INET:
                        r = sd_netlink_message_read_in_addr(m, RTA_GATEWAY, &a->address.in);
                        if (r < 0)
                                continue;

                        break;
                case AF_INET6:
                        r = sd_netlink_message_read_in6_addr(m, RTA_GATEWAY, &a->address.in6);
                        if (r < 0)
                                continue;

                        break;
                default:
                        continue;
                }

                sd_netlink_message_read_u32(m, RTA_PRIORITY, &a->metric);

                a->ifindex = ifi;
                a->family = family;

                n_list++;
        }

        if (n_list > 0)
                qsort(list, n_list, sizeof(struct local_address), address_compare);

        *ret = TAKE_PTR(list);

        return (int) n_list;
}