From c83321e6d40b294e73e2881e4a98172c4244323b Mon Sep 17 00:00:00 2001 From: Vinay Kulkarni Date: Wed, 9 Mar 2016 21:58:44 -0800 Subject: [PATCH] DHCP DUID and IAID configurability --- Makefile-man.am | 7 ++ Makefile.am | 4 + man/networkd.conf.xml | 112 +++++++++++++++++++++++++ man/systemd.network.xml | 6 ++ src/libsystemd-network/dhcp-identifier.c | 2 +- src/libsystemd-network/dhcp-identifier.h | 41 ++++++++- src/libsystemd-network/dhcp6-protocol.h | 7 -- src/libsystemd-network/network-internal.c | 28 +++++++ src/libsystemd-network/network-internal.h | 4 + src/libsystemd-network/sd-dhcp-client.c | 48 ++++++++++- src/libsystemd-network/sd-dhcp6-client.c | 49 +++++------ src/network/networkd-conf.c | 133 ++++++++++++++++++++++++++++++ src/network/networkd-conf.h | 32 +++++++ src/network/networkd-dhcp4.c | 8 +- src/network/networkd-dhcp6.c | 10 +++ src/network/networkd-gperf.gperf | 18 ++++ src/network/networkd-link.c | 18 ++++ src/network/networkd-manager.c | 2 + src/network/networkd-network-gperf.gperf | 1 + src/network/networkd-network.h | 2 + src/network/networkd.c | 5 ++ src/network/networkd.h | 5 ++ src/systemd/sd-dhcp-client.h | 4 + src/systemd/sd-dhcp6-client.h | 7 +- 24 files changed, 509 insertions(+), 44 deletions(-) create mode 100644 man/networkd.conf.xml create mode 100644 src/network/networkd-conf.c create mode 100644 src/network/networkd-conf.h create mode 100644 src/network/networkd-gperf.gperf diff --git a/Makefile-man.am b/Makefile-man.am index 3f03afc..a7e348b 100644 --- a/Makefile-man.am +++ b/Makefile-man.am @@ -1960,15 +1960,21 @@ endif if ENABLE_NETWORKD MANPAGES += \ man/networkctl.1 \ + man/networkd.conf.5 \ man/systemd-networkd-wait-online.service.8 \ man/systemd-networkd.service.8 \ man/systemd.netdev.5 \ man/systemd.network.5 MANPAGES_ALIAS += \ + man/networkd.conf.d.5 \ man/systemd-networkd-wait-online.8 \ man/systemd-networkd.8 +man/networkd.conf.d.5: man/networkd.conf.5 man/systemd-networkd-wait-online.8: man/systemd-networkd-wait-online.service.8 man/systemd-networkd.8: man/systemd-networkd.service.8 +man/networkd.conf.d.html: man/networkd.conf.html + $(html-alias) + man/systemd-networkd-wait-online.html: man/systemd-networkd-wait-online.service.html $(html-alias) @@ -2479,6 +2485,7 @@ EXTRA_DIST += \ man/machinectl.xml \ man/modules-load.d.xml \ man/networkctl.xml \ + man/networkd.conf.xml \ man/nss-myhostname.xml \ man/nss-mymachines.xml \ man/nss-resolve.xml \ diff --git a/Makefile.am b/Makefile.am index 04553d8..5f47a81 100644 --- a/Makefile.am +++ b/Makefile.am @@ -5306,6 +5306,8 @@ libnetworkd_core_la_CFLAGS = \ libnetworkd_core_la_SOURCES = \ src/libsystemd-network/network-internal.h \ src/network/networkd.h \ + src/network/networkd-conf.h \ + src/network/networkd-conf.c \ src/network/networkd-link.h \ src/network/networkd-link.c \ src/network/networkd-netdev.h \ @@ -5354,6 +5356,7 @@ libnetworkd_core_la_SOURCES = \ src/network/networkd-lldp-tx.c nodist_libnetworkd_core_la_SOURCES = \ + src/network/networkd-gperf.c \ src/network/networkd-network-gperf.c \ src/network/networkd-netdev-gperf.c @@ -5450,6 +5453,7 @@ BUSNAMES_TARGET_WANTS += \ endif gperf_gperf_sources += \ + src/network/networkd-gperf.gperf \ src/network/networkd-network-gperf.gperf \ src/network/networkd-netdev-gperf.gperf diff --git a/man/networkd.conf.xml b/man/networkd.conf.xml new file mode 100644 index 0000000..5e2927b --- /dev/null +++ b/man/networkd.conf.xml @@ -0,0 +1,112 @@ + + + + + + + + networkd.conf + systemd + + + + Developer + Vinay + Kulkarni + kulkarniv@vmware.com + + + + + + networkd.conf + 5 + + + + networkd.conf + networkd.conf.d + Global Network configuration files + + + + /etc/systemd/networkd.conf + /etc/systemd/networkd.conf.d/*.conf + /usr/lib/systemd/networkd.conf.d/*.conf + + + + Description + + These configuration files control global network parameters. + For e.g. DHCP Unique Identifier (DUID). + + + + + + + [DUID] Section Options + + This section configures the DUID value used by the DHCP protocol. The DUID value + specified here overrides the DUID that systemd-networkd generates using the machine-id + from the /etc/machine-id file. + + The configured DHCP DUID should conform to the specification in + RFC 3315, + RFC 6355. To configure IAID, see + systemd.network5 + . + + The following options are available in [DUID] section: + + + + + Type= + The type of DUID specified in this section. The following values are + supported: + raw : If Type=raw, then RawData= specifies + the entire DUID. For e.g: RawData=00:02:00:00:ab:11:f9:2a:c2:77:29:f9:5c:00 + specifies a 14 byte long DUID-EN ("00:02"), with enterprise number 43793 ("00:00:ab:11"), + and identifier value "f9:2a:c2:77:29:f9:5c:00". + + + + RawData= + Specifies the DUID bytes as a single newline-terminated, hexadecimal + string, with each byte separated by a ':'. + + + + + + + See Also + + systemd1, + systemd.network5, + machine-id1 + + + + diff --git a/man/systemd.network.xml b/man/systemd.network.xml index 752a15a..c6bbb95 100644 --- a/man/systemd.network.xml +++ b/man/systemd.network.xml @@ -204,6 +204,12 @@ understood to the base of 1024. + + IAIDValue= + + Identity Association Identifier for the interface. This is a 32-bit value specified in host byte order. + + diff --git a/src/libsystemd-network/dhcp-identifier.c b/src/libsystemd-network/dhcp-identifier.c index 1d9ec7b..1bef368 100644 --- a/src/libsystemd-network/dhcp-identifier.c +++ b/src/libsystemd-network/dhcp-identifier.c @@ -43,7 +43,7 @@ int dhcp_identifier_set_duid_en(struct duid *duid, size_t *len) { if (r < 0) return r; - unaligned_write_be16(&duid->type, DHCP6_DUID_EN); + unaligned_write_be16(&duid->type, DHCP_DUID_TYPE_EN); unaligned_write_be32(&duid->en.pen, SYSTEMD_PEN); *len = sizeof(duid->type) + sizeof(duid->en); diff --git a/src/libsystemd-network/dhcp-identifier.h b/src/libsystemd-network/dhcp-identifier.h index 93f06f5..cb953cb 100644 --- a/src/libsystemd-network/dhcp-identifier.h +++ b/src/libsystemd-network/dhcp-identifier.h @@ -25,13 +25,23 @@ #include "sparse-endian.h" #include "unaligned.h" +typedef enum DHCPDUIDType { + DHCP_DUID_TYPE_RAW = 0, + DHCP_DUID_TYPE_LLT = 1, + DHCP_DUID_TYPE_EN = 2, + DHCP_DUID_TYPE_LL = 3, + DHCP_DUID_TYPE_UUID = 4, + _DHCP_DUID_TYPE_MAX, + _DHCP_DUID_TYPE_INVALID = -1, +} DHCPDUIDType; + /* RFC 3315 section 9.1: * A DUID can be no more than 128 octets long (not including the type code). */ #define MAX_DUID_LEN 128 struct duid { - uint16_t type; + be16_t type; union { struct { /* DHCP6_DUID_LLT */ @@ -61,3 +71,32 @@ struct duid { int dhcp_identifier_set_duid_en(struct duid *duid, size_t *len); int dhcp_identifier_set_iaid(int ifindex, uint8_t *mac, size_t mac_len, void *_id); + +static inline int dhcp_validate_duid_len(be16_t duid_type, size_t duid_len) { + struct duid d; + + assert_return(duid_len > 0 && duid_len <= MAX_DUID_LEN, -EINVAL); + + switch (be16toh(duid_type)) { + case DHCP_DUID_TYPE_LLT: + if (duid_len <= sizeof(d.llt)) + return -EINVAL; + break; + case DHCP_DUID_TYPE_EN: + if (duid_len != sizeof(d.en)) + return -EINVAL; + break; + case DHCP_DUID_TYPE_LL: + if (duid_len <= sizeof(d.ll)) + return -EINVAL; + break; + case DHCP_DUID_TYPE_UUID: + if (duid_len != sizeof(d.uuid)) + return -EINVAL; + break; + default: + /* accept unknown type in order to be forward compatible */ + break; + } + return 0; +} diff --git a/src/libsystemd-network/dhcp6-protocol.h b/src/libsystemd-network/dhcp6-protocol.h index ee4bdfb..2487c47 100644 --- a/src/libsystemd-network/dhcp6-protocol.h +++ b/src/libsystemd-network/dhcp6-protocol.h @@ -62,13 +62,6 @@ enum { #define DHCP6_REB_TIMEOUT 10 * USEC_PER_SEC #define DHCP6_REB_MAX_RT 600 * USEC_PER_SEC -enum { - DHCP6_DUID_LLT = 1, - DHCP6_DUID_EN = 2, - DHCP6_DUID_LL = 3, - DHCP6_DUID_UUID = 4, -}; - enum DHCP6State { DHCP6_STATE_STOPPED = 0, DHCP6_STATE_INFORMATION_REQUEST = 1, diff --git a/src/libsystemd-network/network-internal.c b/src/libsystemd-network/network-internal.c index cb7252b..7c21f42 100644 --- a/src/libsystemd-network/network-internal.c +++ b/src/libsystemd-network/network-internal.c @@ -335,6 +335,34 @@ int config_parse_hwaddr(const char *unit, return 0; } +int config_parse_iaid_value(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_value; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if ((r = safe_atou32(rvalue, &iaid_value)) < 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Unable to read IAID: %s", rvalue); + return r; + } + + *((be32_t *)data) = htobe32(iaid_value); + + return 0; +} + void serialize_in_addrs(FILE *f, const struct in_addr *addresses, size_t size) { unsigned i; diff --git a/src/libsystemd-network/network-internal.h b/src/libsystemd-network/network-internal.h index c8a531a..d8b551e 100644 --- a/src/libsystemd-network/network-internal.h +++ b/src/libsystemd-network/network-internal.h @@ -62,6 +62,10 @@ int config_parse_ifalias(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_iaid_value(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 net_get_unique_predictable_data(struct udev_device *device, uint64_t *result); const char *net_get_name(struct udev_device *device); diff --git a/src/libsystemd-network/sd-dhcp-client.c b/src/libsystemd-network/sd-dhcp-client.c index 1188b31..b108e35 100644 --- a/src/libsystemd-network/sd-dhcp-client.c +++ b/src/libsystemd-network/sd-dhcp-client.c @@ -82,7 +82,7 @@ struct sd_dhcp_client { } _packed_ ll; struct { /* 255: Node-specific (RFC 4361) */ - uint32_t iaid; + be32_t iaid; struct duid duid; } _packed_ ns; struct { @@ -298,6 +298,51 @@ int sd_dhcp_client_set_client_id(sd_dhcp_client *client, uint8_t type, return 0; } +int sd_dhcp_client_set_iaid_duid(sd_dhcp_client *client, be32_t iaid, + size_t duid_len, struct duid *duid) { + DHCP_CLIENT_DONT_DESTROY(client); + int r; + assert_return(client, -EINVAL); + zero(client->client_id); + + client->client_id.type = 255; + + /* If IAID is not configured, generate it. */ + if (iaid == 0) { + r = dhcp_identifier_set_iaid(client->index, client->mac_addr, + client->mac_addr_len, + &client->client_id.ns.iaid); + if (r < 0) + return r; + } else + client->client_id.ns.iaid = iaid; + + /* If DUID is not configured, generate DUID-EN. */ + if (duid_len == 0) { + r = dhcp_identifier_set_duid_en(&client->client_id.ns.duid, + &duid_len); + if (r < 0) + return r; + } else { + r = dhcp_validate_duid_len(client->client_id.type, + duid_len - sizeof(client->client_id.type)); + if (r < 0) + return r; + memcpy(&client->client_id.ns.duid, duid, duid_len); + } + + client->client_id_len = sizeof(client->client_id.type) + duid_len + + sizeof(client->client_id.ns.iaid); + + if (!IN_SET(client->state, DHCP_STATE_INIT, DHCP_STATE_STOPPED)) { + log_dhcp_client(client, "Configured IAID+DUID, restarting."); + client_stop(client, SD_DHCP_CLIENT_EVENT_STOP); + sd_dhcp_client_start(client); + } + + return 0; +} + int sd_dhcp_client_set_hostname(sd_dhcp_client *client, const char *hostname) { char *new_hostname = NULL; @@ -469,7 +514,6 @@ static int client_message_init(sd_dhcp_client *client, DHCPPacket **ret, if (client->arp_type == ARPHRD_ETHER) memcpy(&packet->dhcp.chaddr, &client->mac_addr, ETH_ALEN); - /* If no client identifier exists, construct an RFC 4361-compliant one */ if (client->client_id_len == 0) { size_t duid_len; diff --git a/src/libsystemd-network/sd-dhcp6-client.c b/src/libsystemd-network/sd-dhcp6-client.c index af4709d..7cecba1 100644 --- a/src/libsystemd-network/sd-dhcp6-client.c +++ b/src/libsystemd-network/sd-dhcp6-client.c @@ -180,41 +180,30 @@ static int client_ensure_duid(sd_dhcp6_client *client) { return dhcp_identifier_set_duid_en(&client->duid, &client->duid_len); } -int sd_dhcp6_client_set_duid( - sd_dhcp6_client *client, - uint16_t type, - uint8_t *duid, size_t duid_len) { +int sd_dhcp6_client_set_duid(sd_dhcp6_client *client, size_t duid_len, + struct duid *duid) { + int r; assert_return(client, -EINVAL); - assert_return(duid, -EINVAL); - assert_return(duid_len > 0 && duid_len <= MAX_DUID_LEN, -EINVAL); - assert_return(IN_SET(client->state, DHCP6_STATE_STOPPED), -EBUSY); - switch (type) { - case DHCP6_DUID_LLT: - if (duid_len <= sizeof(client->duid.llt)) - return -EINVAL; - break; - case DHCP6_DUID_EN: - if (duid_len != sizeof(client->duid.en)) - return -EINVAL; - break; - case DHCP6_DUID_LL: - if (duid_len <= sizeof(client->duid.ll)) - return -EINVAL; - break; - case DHCP6_DUID_UUID: - if (duid_len != sizeof(client->duid.uuid)) - return -EINVAL; - break; - default: - /* accept unknown type in order to be forward compatible */ - break; + if (duid_len > 0) { + r = dhcp_validate_duid_len(duid->type, + duid_len - sizeof(duid->type)); + if (r < 0) + return r; + + memcpy(&client->duid, duid, duid_len); + client->duid_len = duid_len; } - client->duid.type = htobe16(type); - memcpy(&client->duid.raw.data, duid, duid_len); - client->duid_len = duid_len + sizeof(client->duid.type); + return 0; +} + +int sd_dhcp6_client_set_iaid(sd_dhcp6_client *client, be32_t iaid) { + assert_return(client, -EINVAL); + assert_return(IN_SET(client->state, DHCP6_STATE_STOPPED), -EBUSY); + + client->ia_na.id = iaid; return 0; } diff --git a/src/network/networkd-conf.c b/src/network/networkd-conf.c new file mode 100644 index 0000000..4bc92b8 --- /dev/null +++ b/src/network/networkd-conf.c @@ -0,0 +1,133 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +/*** + This file is part of systemd. + + Copyright 2014 Tom Gundersen + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see . + ***/ + +#include + +#include "conf-parser.h" +#include "def.h" +#include "dhcp-identifier.h" +#include "networkd-conf.h" +#include "string-table.h" + +int manager_parse_config_file(Manager *m) { + assert(m); + + return config_parse_many(PKGSYSCONFDIR "/networkd.conf", + CONF_PATHS_NULSTR("systemd/networkd.conf.d"), + "DUID\0", + config_item_perf_lookup, networkd_gperf_lookup, + false, m); +} + +static const char* const dhcp_duid_type_table[_DHCP_DUID_TYPE_MAX] = { + [DHCP_DUID_TYPE_RAW] = "raw", + [DHCP_DUID_TYPE_LLT] = "link-layer-time", + [DHCP_DUID_TYPE_EN] = "vendor", + [DHCP_DUID_TYPE_LL] = "link-layer", + [DHCP_DUID_TYPE_UUID] = "uuid" +}; +DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(dhcp_duid_type, DHCPDUIDType); +DEFINE_CONFIG_PARSE_ENUM(config_parse_dhcp_duid_type, dhcp_duid_type, DHCPDUIDType, "Failed to parse DHCP DUID type"); + +int config_parse_dhcp_duid_raw( + 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 r; + long byte; + char *cbyte, *pnext; + const char *pduid = (const char *)rvalue; + size_t count = 0, duid_len = 0; + Manager *m = userdata; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(m); + assert(m->dhcp_duid_type != _DHCP_DUID_TYPE_INVALID); + + switch (m->dhcp_duid_type) { + case DHCP_DUID_TYPE_LLT: + /* RawData contains DUID-LLT link-layer address (offset 6) */ + duid_len = 6; + break; + case DHCP_DUID_TYPE_EN: + /* RawData contains DUID-EN identifier (offset 4) */ + duid_len = 4; + break; + case DHCP_DUID_TYPE_LL: + /* RawData contains DUID-LL link-layer address (offset 2) */ + duid_len = 2; + break; + case DHCP_DUID_TYPE_UUID: + /* RawData specifies UUID (offset 0) - fall thru */ + case DHCP_DUID_TYPE_RAW: + /* First two bytes of RawData is DUID Type - fall thru */ + default: + break; + } + + if (m->dhcp_duid_type != DHCP_DUID_TYPE_RAW) + m->dhcp_duid.type = htobe16(m->dhcp_duid_type); + + /* RawData contains DUID in format " NN:NN:NN... " */ + while (true) { + r = extract_first_word(&pduid, &cbyte, ":", 0); + if (r < 0) { + log_error("Failed to read DUID."); + return -EINVAL; + } + if (r == 0) + break; + if (duid_len >= MAX_DUID_LEN) { + log_error("DUID length exceeds maximum length."); + return -EINVAL; + } + + errno = 0; + byte = strtol(cbyte, &pnext, 16); + if ((errno == ERANGE && (byte == LONG_MAX || byte == LONG_MIN)) + || (errno != 0 && byte == 0) || (cbyte == pnext)) { + log_error("Invalid DUID byte: %s.", cbyte); + return -EINVAL; + } + + /* If DHCP_DUID_TYPE_RAW, first two bytes holds DUID Type */ + if ((m->dhcp_duid_type == DHCP_DUID_TYPE_RAW) && (count < 2)) { + m->dhcp_duid.type |= (byte << (8 * count)); + count++; + continue; + } + + m->dhcp_duid.raw.data[duid_len++] = byte; + } + + m->dhcp_duid_len = sizeof(m->dhcp_duid.type) + duid_len; + + return 0; +} diff --git a/src/network/networkd-conf.h b/src/network/networkd-conf.h new file mode 100644 index 0000000..6d9ce01 --- /dev/null +++ b/src/network/networkd-conf.h @@ -0,0 +1,32 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +#pragma once + +/*** + This file is part of systemd. + + Copyright 2014 Tom Gundersen + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see . +***/ + +#include "networkd.h" + + +int manager_parse_config_file(Manager *m); + +const struct ConfigPerfItem* networkd_gperf_lookup(const char *key, unsigned length); + +int config_parse_dhcp_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); +int config_parse_dhcp_duid_raw(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); diff --git a/src/network/networkd-dhcp4.c b/src/network/networkd-dhcp4.c index 68998ea..3bbb212 100644 --- a/src/network/networkd-dhcp4.c +++ b/src/network/networkd-dhcp4.c @@ -625,7 +625,13 @@ int dhcp4_configure(Link *link) { switch (link->network->dhcp_client_identifier) { case DHCP_CLIENT_ID_DUID: - /* Library defaults to this. */ + /* If configured, apply user specified DUID and/or IAID */ + r = sd_dhcp_client_set_iaid_duid(link->dhcp_client, + link->network->iaid_value, + link->manager->dhcp_duid_len, + &link->manager->dhcp_duid); + if (r < 0) + return r; break; case DHCP_CLIENT_ID_MAC: r = sd_dhcp_client_set_client_id(link->dhcp_client, diff --git a/src/network/networkd-dhcp6.c b/src/network/networkd-dhcp6.c index 5f7a005..9f59cb3 100644 --- a/src/network/networkd-dhcp6.c +++ b/src/network/networkd-dhcp6.c @@ -230,6 +230,16 @@ int dhcp6_configure(Link *link) { if (r < 0) goto error; + r = sd_dhcp6_client_set_iaid(client, link->network->iaid_value); + if (r < 0) + goto error; + + r = sd_dhcp6_client_set_duid(client, + link->manager->dhcp_duid_len, + &link->manager->dhcp_duid); + if (r < 0) + goto error; + r = sd_dhcp6_client_set_index(client, link->ifindex); if (r < 0) goto error; diff --git a/src/network/networkd-gperf.gperf b/src/network/networkd-gperf.gperf new file mode 100644 index 0000000..3ef4155 --- /dev/null +++ b/src/network/networkd-gperf.gperf @@ -0,0 +1,18 @@ +%{ +#include +#include "conf-parser.h" +#include "networkd-conf.h" +%} +struct ConfigPerfItem; +%null_strings +%language=ANSI-C +%define slot-name section_and_lvalue +%define hash-function-name networkd_gperf_hash +%define lookup-function-name networkd_gperf_lookup +%readonly-tables +%omit-struct-type +%struct-type +%includes +%% +DUID.Type, config_parse_dhcp_duid_type, 0, offsetof(Manager, dhcp_duid_type) +DUID.RawData, config_parse_dhcp_duid_raw, 0, offsetof(Manager, dhcp_duid) diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c index ff4bd76..67b0456 100644 --- a/src/network/networkd-link.c +++ b/src/network/networkd-link.c @@ -2781,6 +2781,13 @@ int link_update(Link *link, sd_netlink_message *m) { ARPHRD_ETHER); if (r < 0) return log_link_warning_errno(link, r, "Could not update MAC address in DHCP client: %m"); + + r = sd_dhcp_client_set_iaid_duid(link->dhcp_client, + link->network->iaid_value, + link->manager->dhcp_duid_len, + &link->manager->dhcp_duid); + if (r < 0) + return log_link_warning_errno(link, r, "Could not update DUID/IAID in DHCP client: %m"); } if (link->dhcp6_client) { @@ -2790,6 +2797,17 @@ int link_update(Link *link, sd_netlink_message *m) { ARPHRD_ETHER); if (r < 0) return log_link_warning_errno(link, r, "Could not update MAC address in DHCPv6 client: %m"); + + r = sd_dhcp6_client_set_iaid(link->dhcp6_client, + link->network->iaid_value); + if (r < 0) + return log_link_warning_errno(link, r, "Could not update DHCPv6 IAID: %m"); + + r = sd_dhcp6_client_set_duid(link->dhcp6_client, + link->manager->dhcp_duid_len, + &link->manager->dhcp_duid); + if (r < 0) + return log_link_warning_errno(link, r, "Could not update DHCPv6 DUID: %m"); } } } diff --git a/src/network/networkd-manager.c b/src/network/networkd-manager.c index b8cb7f8..8d443f7 100644 --- a/src/network/networkd-manager.c +++ b/src/network/networkd-manager.c @@ -1037,6 +1037,8 @@ int manager_new(Manager **ret) { if (r < 0) return r; + m->dhcp_duid_type = _DHCP_DUID_TYPE_INVALID; + *ret = m; m = NULL; diff --git a/src/network/networkd-network-gperf.gperf b/src/network/networkd-network-gperf.gperf index a5d1714..7a9a136 100644 --- a/src/network/networkd-network-gperf.gperf +++ b/src/network/networkd-network-gperf.gperf @@ -26,6 +26,7 @@ Match.KernelCommandLine, config_parse_net_condition, Match.Architecture, config_parse_net_condition, CONDITION_ARCHITECTURE, offsetof(Network, match_arch) Link.MACAddress, config_parse_hwaddr, 0, offsetof(Network, mac) Link.MTUBytes, config_parse_iec_size, 0, offsetof(Network, mtu) +Link.IAIDValue, config_parse_iaid_value, 0, offsetof(Network, iaid_value) Network.Description, config_parse_string, 0, offsetof(Network, description) Network.Bridge, config_parse_netdev, 0, offsetof(Network, bridge) Network.Bond, config_parse_netdev, 0, offsetof(Network, bond) diff --git a/src/network/networkd-network.h b/src/network/networkd-network.h index 4a13e2b..c5530cd 100644 --- a/src/network/networkd-network.h +++ b/src/network/networkd-network.h @@ -30,6 +30,7 @@ typedef struct Network Network; #include "networkd-route.h" #include "networkd-util.h" #include "networkd.h" +#include "sparse-endian.h" #define DHCP_ROUTE_METRIC 1024 #define IPV4LL_ROUTE_METRIC 2048 @@ -144,6 +145,7 @@ struct Network { struct ether_addr *mac; unsigned mtu; + be32_t iaid_value; LLDPMode lldp_mode; /* LLDP reception */ bool lldp_emit; /* LLDP transmission */ diff --git a/src/network/networkd.c b/src/network/networkd.c index 3a2615e..c8f81a2 100644 --- a/src/network/networkd.c +++ b/src/network/networkd.c @@ -21,6 +21,7 @@ #include "capability-util.h" #include "networkd.h" +#include "networkd-conf.h" #include "signal-util.h" #include "user-util.h" @@ -89,6 +90,10 @@ int main(int argc, char *argv[]) { goto out; } + r = manager_parse_config_file(m); + if (r < 0) + log_warning_errno(r, "Failed to parse configuration file: %m"); + r = manager_load_config(m); if (r < 0) { log_error_errno(r, "Could not load configuration files: %m"); diff --git a/src/network/networkd.h b/src/network/networkd.h index 6bdd830..d815f30 100644 --- a/src/network/networkd.h +++ b/src/network/networkd.h @@ -35,6 +35,7 @@ typedef struct Manager Manager; #include "networkd-link.h" #include "networkd-network.h" #include "networkd-util.h" +#include "dhcp-identifier.h" struct Manager { sd_netlink *rtnl; @@ -61,6 +62,10 @@ struct Manager { LIST_HEAD(AddressPool, address_pools); usec_t network_dirs_ts_usec; + + DHCPDUIDType dhcp_duid_type; + size_t dhcp_duid_len; + struct duid dhcp_duid; }; extern const char* const network_dirs[]; diff --git a/src/systemd/sd-dhcp-client.h b/src/systemd/sd-dhcp-client.h index ef45370..7873cb1 100644 --- a/src/systemd/sd-dhcp-client.h +++ b/src/systemd/sd-dhcp-client.h @@ -27,6 +27,7 @@ #include "sd-dhcp-lease.h" #include "sd-event.h" +#include "sparse-endian.h" #include "_sd-common.h" @@ -82,6 +83,7 @@ enum { SD_DHCP_OPTION_END = 255, }; +struct duid; typedef struct sd_dhcp_client sd_dhcp_client; typedef void (*sd_dhcp_client_callback_t)(sd_dhcp_client *client, int event, @@ -98,6 +100,8 @@ int sd_dhcp_client_set_mac(sd_dhcp_client *client, const uint8_t *addr, size_t addr_len, uint16_t arp_type); int sd_dhcp_client_set_client_id(sd_dhcp_client *client, uint8_t type, const uint8_t *data, size_t data_len); +int sd_dhcp_client_set_iaid_duid(sd_dhcp_client *client, be32_t iaid, + size_t duid_len, struct duid *duid); int sd_dhcp_client_get_client_id(sd_dhcp_client *client, uint8_t *type, const uint8_t **data, size_t *data_len); int sd_dhcp_client_set_mtu(sd_dhcp_client *client, uint32_t mtu); diff --git a/src/systemd/sd-dhcp6-client.h b/src/systemd/sd-dhcp6-client.h index 1bedc94..ebdd017 100644 --- a/src/systemd/sd-dhcp6-client.h +++ b/src/systemd/sd-dhcp6-client.h @@ -26,6 +26,7 @@ #include "sd-dhcp6-lease.h" #include "sd-event.h" +#include "sparse-endian.h" #include "_sd-common.h" @@ -74,6 +75,7 @@ enum { /* option codes 144-65535 are unassigned */ }; +struct duid; typedef struct sd_dhcp6_client sd_dhcp6_client; typedef void (*sd_dhcp6_client_callback_t)(sd_dhcp6_client *client, int event, @@ -85,8 +87,9 @@ int sd_dhcp6_client_set_index(sd_dhcp6_client *client, int interface_index); int sd_dhcp6_client_set_local_address(sd_dhcp6_client *client, const struct in6_addr *local_address); int sd_dhcp6_client_set_mac(sd_dhcp6_client *client, const uint8_t *addr, size_t addr_len, uint16_t arp_type); -int sd_dhcp6_client_set_duid(sd_dhcp6_client *client, uint16_t type, uint8_t *duid, - size_t duid_len); +int sd_dhcp6_client_set_duid(sd_dhcp6_client *client, size_t duid_len, + struct duid *duid); +int sd_dhcp6_client_set_iaid(sd_dhcp6_client *client, be32_t iaid); int sd_dhcp6_client_set_information_request(sd_dhcp6_client *client, int enabled); int sd_dhcp6_client_get_information_request(sd_dhcp6_client *client, int *enabled); int sd_dhcp6_client_set_request_option(sd_dhcp6_client *client, -- 2.7.4