| /* |
| * Copyright (c) 2016 Fabien Siron <fabien.siron@epita.fr> |
| * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com> |
| * Copyright (c) 2016-2018 The strace developers. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "defs.h" |
| #include "netlink_route.h" |
| #include "nlattr.h" |
| #include "print_fields.h" |
| |
| #include "netlink.h" |
| #ifdef HAVE_LINUX_IF_LINK_H |
| # include <linux/if_link.h> |
| #endif |
| #include <linux/rtnetlink.h> |
| |
| #include "xlat/rtnl_ifla_brport_attrs.h" |
| #include "xlat/rtnl_ifla_info_attrs.h" |
| #include "xlat/rtnl_ifla_port_attrs.h" |
| #include "xlat/rtnl_ifla_vf_port_attrs.h" |
| #include "xlat/rtnl_ifla_xdp_attrs.h" |
| #include "xlat/rtnl_link_attrs.h" |
| #include "xlat/xdp_flags.h" |
| |
| static bool |
| decode_rtnl_link_stats(struct tcb *const tcp, |
| const kernel_ulong_t addr, |
| const unsigned int len, |
| const void *const opaque_data) |
| { |
| struct rtnl_link_stats st; |
| const unsigned int min_size = |
| offsetofend(struct rtnl_link_stats, tx_compressed); |
| const unsigned int def_size = sizeof(st); |
| const unsigned int size = |
| (len >= def_size) ? def_size : |
| ((len == min_size) ? min_size : 0); |
| |
| if (!size) |
| return false; |
| |
| if (!umoven_or_printaddr(tcp, addr, size, &st)) { |
| PRINT_FIELD_U("{", st, rx_packets); |
| PRINT_FIELD_U(", ", st, tx_packets); |
| PRINT_FIELD_U(", ", st, rx_bytes); |
| PRINT_FIELD_U(", ", st, tx_bytes); |
| PRINT_FIELD_U(", ", st, rx_errors); |
| PRINT_FIELD_U(", ", st, tx_errors); |
| PRINT_FIELD_U(", ", st, rx_dropped); |
| PRINT_FIELD_U(", ", st, tx_dropped); |
| PRINT_FIELD_U(", ", st, multicast); |
| PRINT_FIELD_U(", ", st, collisions); |
| |
| PRINT_FIELD_U(", ", st, rx_length_errors); |
| PRINT_FIELD_U(", ", st, rx_over_errors); |
| PRINT_FIELD_U(", ", st, rx_crc_errors); |
| PRINT_FIELD_U(", ", st, rx_frame_errors); |
| PRINT_FIELD_U(", ", st, rx_fifo_errors); |
| PRINT_FIELD_U(", ", st, rx_missed_errors); |
| |
| PRINT_FIELD_U(", ", st, tx_aborted_errors); |
| PRINT_FIELD_U(", ", st, tx_carrier_errors); |
| PRINT_FIELD_U(", ", st, tx_fifo_errors); |
| PRINT_FIELD_U(", ", st, tx_heartbeat_errors); |
| PRINT_FIELD_U(", ", st, tx_window_errors); |
| |
| PRINT_FIELD_U(", ", st, rx_compressed); |
| PRINT_FIELD_U(", ", st, tx_compressed); |
| #ifdef HAVE_STRUCT_RTNL_LINK_STATS_RX_NOHANDLER |
| if (len >= def_size) |
| PRINT_FIELD_U(", ", st, rx_nohandler); |
| #endif |
| tprints("}"); |
| } |
| |
| return true; |
| } |
| |
| static bool |
| decode_ifla_bridge_id(struct tcb *const tcp, |
| const kernel_ulong_t addr, |
| const unsigned int len, |
| const void *const opaque_data) |
| { |
| #ifdef HAVE_STRUCT_IFLA_BRIDGE_ID |
| struct ifla_bridge_id id; |
| |
| if (len < sizeof(id)) |
| return false; |
| else if (!umove_or_printaddr(tcp, addr, &id)) { |
| tprintf("{prio=[%u, %u], addr=%02x:%02x:%02x:%02x:%02x:%02x}", |
| id.prio[0], id.prio[1], |
| id.addr[0], id.addr[1], id.addr[2], |
| id.addr[3], id.addr[4], id.addr[5]); |
| } |
| |
| return true; |
| #else |
| return false; |
| #endif |
| } |
| |
| static const nla_decoder_t ifla_brport_nla_decoders[] = { |
| [IFLA_BRPORT_STATE] = decode_nla_u8, |
| [IFLA_BRPORT_PRIORITY] = decode_nla_u16, |
| [IFLA_BRPORT_COST] = decode_nla_u32, |
| [IFLA_BRPORT_MODE] = decode_nla_u8, |
| [IFLA_BRPORT_GUARD] = decode_nla_u8, |
| [IFLA_BRPORT_PROTECT] = decode_nla_u8, |
| [IFLA_BRPORT_FAST_LEAVE] = decode_nla_u8, |
| [IFLA_BRPORT_LEARNING] = decode_nla_u8, |
| [IFLA_BRPORT_UNICAST_FLOOD] = decode_nla_u8, |
| [IFLA_BRPORT_PROXYARP] = decode_nla_u8, |
| [IFLA_BRPORT_LEARNING_SYNC] = decode_nla_u8, |
| [IFLA_BRPORT_PROXYARP_WIFI] = decode_nla_u8, |
| [IFLA_BRPORT_ROOT_ID] = decode_ifla_bridge_id, |
| [IFLA_BRPORT_BRIDGE_ID] = decode_ifla_bridge_id, |
| [IFLA_BRPORT_DESIGNATED_PORT] = decode_nla_u16, |
| [IFLA_BRPORT_DESIGNATED_COST] = decode_nla_u16, |
| [IFLA_BRPORT_ID] = decode_nla_u16, |
| [IFLA_BRPORT_NO] = decode_nla_u16, |
| [IFLA_BRPORT_TOPOLOGY_CHANGE_ACK] = decode_nla_u8, |
| [IFLA_BRPORT_CONFIG_PENDING] = decode_nla_u8, |
| [IFLA_BRPORT_MESSAGE_AGE_TIMER] = decode_nla_u64, |
| [IFLA_BRPORT_FORWARD_DELAY_TIMER] = decode_nla_u64, |
| [IFLA_BRPORT_HOLD_TIMER] = decode_nla_u64, |
| [IFLA_BRPORT_FLUSH] = NULL, |
| [IFLA_BRPORT_MULTICAST_ROUTER] = decode_nla_u8, |
| [IFLA_BRPORT_PAD] = NULL, |
| [IFLA_BRPORT_MCAST_FLOOD] = decode_nla_u8, |
| [IFLA_BRPORT_MCAST_TO_UCAST] = decode_nla_u8, |
| [IFLA_BRPORT_VLAN_TUNNEL] = decode_nla_u8, |
| [IFLA_BRPORT_BCAST_FLOOD] = decode_nla_u8 |
| }; |
| |
| static bool |
| decode_ifla_protinfo(struct tcb *const tcp, |
| const kernel_ulong_t addr, |
| const unsigned int len, |
| const void *const opaque_data) |
| { |
| decode_nlattr(tcp, addr, len, rtnl_ifla_brport_attrs, |
| "IFLA_BRPORT_???", ifla_brport_nla_decoders, |
| ARRAY_SIZE(ifla_brport_nla_decoders), opaque_data); |
| |
| return true; |
| } |
| |
| static bool |
| decode_rtnl_link_ifmap(struct tcb *const tcp, |
| const kernel_ulong_t addr, |
| const unsigned int len, |
| const void *const opaque_data) |
| { |
| struct rtnl_link_ifmap map; |
| const unsigned int sizeof_ifmap = |
| offsetofend(struct rtnl_link_ifmap, port); |
| |
| if (len < sizeof_ifmap) |
| return false; |
| else if (!umoven_or_printaddr(tcp, addr, sizeof_ifmap, &map)) { |
| PRINT_FIELD_X("{", map, mem_start); |
| PRINT_FIELD_X(", ", map, mem_end); |
| PRINT_FIELD_X(", ", map, base_addr); |
| PRINT_FIELD_U(", ", map, irq); |
| PRINT_FIELD_U(", ", map, dma); |
| PRINT_FIELD_U(", ", map, port); |
| tprints("}"); |
| } |
| |
| return true; |
| } |
| |
| static const nla_decoder_t ifla_linkinfo_nla_decoders[] = { |
| [IFLA_INFO_KIND] = decode_nla_str, |
| [IFLA_INFO_DATA] = NULL, /* unimplemented */ |
| [IFLA_INFO_XSTATS] = NULL, /* unimplemented */ |
| [IFLA_INFO_SLAVE_KIND] = decode_nla_str, |
| [IFLA_INFO_SLAVE_DATA] = NULL, /* unimplemented */ |
| }; |
| |
| static bool |
| decode_ifla_linkinfo(struct tcb *const tcp, |
| const kernel_ulong_t addr, |
| const unsigned int len, |
| const void *const opaque_data) |
| { |
| decode_nlattr(tcp, addr, len, rtnl_ifla_info_attrs, |
| "IFLA_INFO_???", ifla_linkinfo_nla_decoders, |
| ARRAY_SIZE(ifla_linkinfo_nla_decoders), opaque_data); |
| |
| return true; |
| } |
| |
| static bool |
| decode_rtnl_link_stats64(struct tcb *const tcp, |
| const kernel_ulong_t addr, |
| const unsigned int len, |
| const void *const opaque_data) |
| { |
| #ifdef HAVE_STRUCT_RTNL_LINK_STATS64 |
| struct rtnl_link_stats64 st; |
| const unsigned int min_size = |
| offsetofend(struct rtnl_link_stats64, tx_compressed); |
| const unsigned int def_size = sizeof(st); |
| const unsigned int size = |
| (len >= def_size) ? def_size : |
| ((len == min_size) ? min_size : 0); |
| |
| if (!size) |
| return false; |
| |
| if (!umoven_or_printaddr(tcp, addr, size, &st)) { |
| PRINT_FIELD_U("{", st, rx_packets); |
| PRINT_FIELD_U(", ", st, tx_packets); |
| PRINT_FIELD_U(", ", st, rx_bytes); |
| PRINT_FIELD_U(", ", st, tx_bytes); |
| PRINT_FIELD_U(", ", st, rx_errors); |
| PRINT_FIELD_U(", ", st, tx_errors); |
| PRINT_FIELD_U(", ", st, rx_dropped); |
| PRINT_FIELD_U(", ", st, tx_dropped); |
| PRINT_FIELD_U(", ", st, multicast); |
| PRINT_FIELD_U(", ", st, collisions); |
| |
| PRINT_FIELD_U(", ", st, rx_length_errors); |
| PRINT_FIELD_U(", ", st, rx_over_errors); |
| PRINT_FIELD_U(", ", st, rx_crc_errors); |
| PRINT_FIELD_U(", ", st, rx_frame_errors); |
| PRINT_FIELD_U(", ", st, rx_fifo_errors); |
| PRINT_FIELD_U(", ", st, rx_missed_errors); |
| |
| PRINT_FIELD_U(", ", st, tx_aborted_errors); |
| PRINT_FIELD_U(", ", st, tx_carrier_errors); |
| PRINT_FIELD_U(", ", st, tx_fifo_errors); |
| PRINT_FIELD_U(", ", st, tx_heartbeat_errors); |
| PRINT_FIELD_U(", ", st, tx_window_errors); |
| |
| PRINT_FIELD_U(", ", st, rx_compressed); |
| PRINT_FIELD_U(", ", st, tx_compressed); |
| #ifdef HAVE_STRUCT_RTNL_LINK_STATS64_RX_NOHANDLER |
| if (len >= def_size) |
| PRINT_FIELD_U(", ", st, rx_nohandler); |
| #endif |
| tprints("}"); |
| } |
| |
| return true; |
| #else |
| return false; |
| #endif |
| } |
| |
| static bool |
| decode_ifla_port_vsi(struct tcb *const tcp, |
| const kernel_ulong_t addr, |
| const unsigned int len, |
| const void *const opaque_data) |
| { |
| #ifdef HAVE_STRUCT_IFLA_PORT_VSI |
| struct ifla_port_vsi vsi; |
| |
| if (len < sizeof(vsi)) |
| return false; |
| else if (!umove_or_printaddr(tcp, addr, &vsi)) { |
| PRINT_FIELD_U("{", vsi, vsi_mgr_id); |
| PRINT_FIELD_STRING(", ", vsi, vsi_type_id, |
| sizeof(vsi.vsi_type_id), QUOTE_FORCE_HEX); |
| PRINT_FIELD_U(", ", vsi, vsi_type_version); |
| tprints("}"); |
| } |
| |
| return true; |
| #else |
| return false; |
| #endif |
| } |
| |
| static const nla_decoder_t ifla_port_nla_decoders[] = { |
| [IFLA_PORT_VF] = decode_nla_u32, |
| [IFLA_PORT_PROFILE] = decode_nla_str, |
| [IFLA_PORT_VSI_TYPE] = decode_ifla_port_vsi, |
| [IFLA_PORT_INSTANCE_UUID] = NULL, /* default parser */ |
| [IFLA_PORT_HOST_UUID] = NULL, /* default parser */ |
| [IFLA_PORT_REQUEST] = decode_nla_u8, |
| [IFLA_PORT_RESPONSE] = decode_nla_u16 |
| }; |
| |
| static bool |
| decode_ifla_port(struct tcb *const tcp, |
| const kernel_ulong_t addr, |
| const unsigned int len, |
| const void *const opaque_data) |
| { |
| decode_nlattr(tcp, addr, len, rtnl_ifla_port_attrs, |
| "IFLA_VF_PORT_???", ifla_port_nla_decoders, |
| ARRAY_SIZE(ifla_port_nla_decoders), opaque_data); |
| |
| return true; |
| } |
| |
| static const nla_decoder_t ifla_vf_port_nla_decoders[] = { |
| [IFLA_VF_PORT] = decode_ifla_port |
| }; |
| |
| static bool |
| decode_ifla_vf_ports(struct tcb *const tcp, |
| const kernel_ulong_t addr, |
| const unsigned int len, |
| const void *const opaque_data) |
| { |
| decode_nlattr(tcp, addr, len, rtnl_ifla_vf_port_attrs, |
| "IFLA_VF_PORT_???", ifla_vf_port_nla_decoders, |
| ARRAY_SIZE(ifla_vf_port_nla_decoders), opaque_data); |
| |
| return true; |
| } |
| |
| static bool |
| decode_ifla_xdp_flags(struct tcb *const tcp, |
| const kernel_ulong_t addr, |
| const unsigned int len, |
| const void *const opaque_data) |
| { |
| uint32_t flags; |
| |
| if (len < sizeof(flags)) |
| return false; |
| else if (!umove_or_printaddr(tcp, addr, &flags)) |
| printflags(xdp_flags, flags, "XDP_FLAGS_???"); |
| |
| return true; |
| } |
| |
| static const nla_decoder_t ifla_xdp_nla_decoders[] = { |
| [IFLA_XDP_FD] = decode_nla_fd, |
| [IFLA_XDP_ATTACHED] = decode_nla_u8, |
| [IFLA_XDP_FLAGS] = decode_ifla_xdp_flags, |
| [IFLA_XDP_PROG_ID] = decode_nla_u32 |
| }; |
| |
| static bool |
| decode_ifla_xdp(struct tcb *const tcp, |
| const kernel_ulong_t addr, |
| const unsigned int len, |
| const void *const opaque_data) |
| { |
| decode_nlattr(tcp, addr, len, rtnl_ifla_xdp_attrs, |
| "IFLA_XDP_???", ifla_xdp_nla_decoders, |
| ARRAY_SIZE(ifla_xdp_nla_decoders), opaque_data); |
| |
| return true; |
| } |
| |
| static const nla_decoder_t ifinfomsg_nla_decoders[] = { |
| [IFLA_ADDRESS] = NULL, /* unimplemented */ |
| [IFLA_BROADCAST] = NULL, /* unimplemented */ |
| [IFLA_IFNAME] = decode_nla_str, |
| [IFLA_MTU] = decode_nla_u32, |
| [IFLA_LINK] = decode_nla_u32, |
| [IFLA_QDISC] = decode_nla_str, |
| [IFLA_STATS] = decode_rtnl_link_stats, |
| [IFLA_COST] = NULL, /* unused */ |
| [IFLA_PRIORITY] = NULL, /* unused */ |
| [IFLA_MASTER] = decode_nla_u32, |
| [IFLA_WIRELESS] = NULL, /* unimplemented */ |
| [IFLA_PROTINFO] = decode_ifla_protinfo, |
| [IFLA_TXQLEN] = decode_nla_u32, |
| [IFLA_MAP] = decode_rtnl_link_ifmap, |
| [IFLA_WEIGHT] = decode_nla_u32, |
| [IFLA_OPERSTATE] = decode_nla_u8, |
| [IFLA_LINKMODE] = decode_nla_u8, |
| [IFLA_LINKINFO] = decode_ifla_linkinfo, |
| [IFLA_NET_NS_PID] = decode_nla_u32, |
| [IFLA_IFALIAS] = decode_nla_str, |
| [IFLA_NUM_VF] = decode_nla_u32, |
| [IFLA_VFINFO_LIST] = NULL, /* unimplemented */ |
| [IFLA_STATS64] = decode_rtnl_link_stats64, |
| [IFLA_VF_PORTS] = decode_ifla_vf_ports, |
| [IFLA_PORT_SELF] = decode_ifla_port, |
| [IFLA_AF_SPEC] = NULL, /* unimplemented */ |
| [IFLA_GROUP] = decode_nla_u32, |
| [IFLA_NET_NS_FD] = decode_nla_fd, |
| [IFLA_EXT_MASK] = decode_nla_u32, |
| [IFLA_PROMISCUITY] = decode_nla_u32, |
| [IFLA_NUM_TX_QUEUES] = decode_nla_u32, |
| [IFLA_NUM_RX_QUEUES] = decode_nla_u32, |
| [IFLA_CARRIER] = decode_nla_u8, |
| [IFLA_PHYS_PORT_ID] = NULL, /* default parser */ |
| [IFLA_CARRIER_CHANGES] = decode_nla_u32, |
| [IFLA_PHYS_SWITCH_ID] = NULL, /* default parser */ |
| [IFLA_LINK_NETNSID] = decode_nla_s32, |
| [IFLA_PHYS_PORT_NAME] = decode_nla_str, |
| [IFLA_PROTO_DOWN] = decode_nla_u8, |
| [IFLA_GSO_MAX_SEGS] = decode_nla_u32, |
| [IFLA_GSO_MAX_SIZE] = decode_nla_u32, |
| [IFLA_PAD] = NULL, |
| [IFLA_XDP] = decode_ifla_xdp, |
| [IFLA_EVENT] = decode_nla_u32 |
| }; |
| |
| DECL_NETLINK_ROUTE_DECODER(decode_ifinfomsg) |
| { |
| struct ifinfomsg ifinfo = { .ifi_family = family }; |
| size_t offset = sizeof(ifinfo.ifi_family); |
| bool decode_nla = false; |
| |
| PRINT_FIELD_XVAL("{", ifinfo, ifi_family, addrfams, "AF_???"); |
| |
| tprints(", "); |
| if (len >= sizeof(ifinfo)) { |
| if (!umoven_or_printaddr(tcp, addr + offset, |
| sizeof(ifinfo) - offset, |
| (char *) &ifinfo + offset)) { |
| PRINT_FIELD_XVAL("", ifinfo, ifi_type, |
| arp_hardware_types, "ARPHRD_???"); |
| PRINT_FIELD_IFINDEX(", ", ifinfo, ifi_index); |
| PRINT_FIELD_FLAGS(", ", ifinfo, ifi_flags, |
| iffflags, "IFF_???"); |
| PRINT_FIELD_X(", ", ifinfo, ifi_change); |
| decode_nla = true; |
| } |
| } else |
| tprints("..."); |
| tprints("}"); |
| |
| offset = NLMSG_ALIGN(sizeof(ifinfo)); |
| if (decode_nla && len > offset) { |
| tprints(", "); |
| decode_nlattr(tcp, addr + offset, len - offset, |
| rtnl_link_attrs, "IFLA_???", |
| ifinfomsg_nla_decoders, |
| ARRAY_SIZE(ifinfomsg_nla_decoders), NULL); |
| } |
| } |