| Age | Commit message (Collapse) | Author | |
|---|---|---|---|
| 2022-06-08 | Merge pull request #83 from jow-/rtnl-fix-linkinfo-segfault | Jo-Philipp Wich | |
| rtnl: fix segmentation fault on parsing linkinfo RTA without data | |||
| 2022-06-08 | Merge pull request #82 from jow-/rtnl-zero-msghdr | Jo-Philipp Wich | |
| rtnl: zero request message headers | |||
| 2022-06-08 | Merge pull request #81 from jow-/rtnl-fix-ack-handling | Jo-Philipp Wich | |
| rtnl: fix premature netlink reply receive abort | |||
| 2022-06-08 | rtnl: fix segmentation fault on parsing linkinfo RTA without data | Jo-Philipp Wich | |
| Some link types, such as veth, yield an IFLA_LINKINFO nla without an embedded IFLA_INFO_DATA / INFLA_INFO_SLAVE_DATA nla which causes the nla converter to dereference a NULL nla pointer. Properly deal with such cases and check for the existence of the child nla before attempting to parse it. Signed-off-by: Jo-Philipp Wich <jo@mein.io> | |||
| 2022-06-08 | rtnl: zero request message headers | Jo-Philipp Wich | |
| For route netlink request messages having a header struct, uc_nl_request() invokes nlmsg_reserve() to reserve room for the struct data but the nlmsg_reserve() function only zeroes additional alignment bytes, not the actual reserved buffer space. Extend the existing logic to explicitly zero out the reserved header space in order to avoid sending uninitialized struct member values to the kernel. Signed-off-by: Jo-Philipp Wich <jo@mein.io> | |||
| 2022-06-08 | rtnl: fix premature netlink reply receive abort | Jo-Philipp Wich | |
| The nl_recvmsgs() logic in uc_nl_request() incorrectly stopped reading the socket before the netlink ACK message was handled for non-multipart replies. This caused subsequent requests to incorrectly receive the ACK of the previous request, leading to a failure to receive the actual reply. Fix this issue by continue reading the socket until either the finish callback for multipart (dump) messages or the ack callback for non- multipart messages was received. This fix is basically the same as the one applied to the nl80211 module in 54ef6c0 ("nl80211: fix premature netlink reply receive abort"). Signed-off-by: Jo-Philipp Wich <jo@mein.io> | |||
| 2022-06-04 | rtnl: avoid stray "netlink: %d bytes leftover after parsing attributes." | Jo-Philipp Wich | |
| Some nested RTAs such as IFLA_INET_CONF do not contain actual sub-RTAs but just an array of integers. Avoid calling a no-op `nla_parse()` for such attributes to suppress the non-harmful leftover bytes warning emitted by libnl. Signed-off-by: Jo-Philipp Wich <jo@mein.io> | |||
| 2022-01-18 | lib: replace usages of vasprintf() with xvasprintf() | Jo-Philipp Wich | |
| This avoid triggering -Werror=unused-result compilation failures with certain toolchains. Signed-off-by: Jo-Philipp Wich <jo@mein.io> | |||
| 2022-01-04 | treewide: rework numeric value handling | Jo-Philipp Wich | |
| - Parse integer literals as unsigned numeric values in order to be able to represent the entire unsigned 64bit value range - Stop parsing minus-prefixed integer literals as negative numbers but treat them as separate minus operator followed by a positive integer instead - Only store unsigned numeric constants in bytecode - Rework numeric comparison logic to be able to handle full 64bit unsigned integers - If possible, yield unsigned 64 bit results for additions - Simplify numeric value conversion API - Compile code with -fwrapv for defined signed overflow semantics Signed-off-by: Jo-Philipp Wich <jo@mein.io> | |||
| 2021-09-15 | rtnl: automatically derive message family from certain address attrs | Jo-Philipp Wich | |
| # ucode -mrtnl -Rs 'printf("%.J", rtnl.request(rtnl.const.RTM_GETROUTE, 0, { dst: "8.8.8.8" }))' { "family": 2, "tos": 0, "protocol": 0, "scope": 0, "type": 1, "flags": 512, "dst": "8.8.8.8/32", "oif": "onboard", "gateway": "10.11.12.13", "prefsrc": "10.11.12.7", "cacheinfo": { "clntref": 2, "lastuse": 0, "expires": 0, "error": 0, "used": 0, "id": 0, "ts": 0, "tsage": 0 }, "table": 254, "uid": 0 } Signed-off-by: Jo-Philipp Wich <jo@mein.io> | |||
| 2021-09-15 | rtnl: expose IPv4 and IPv6 devconfig information | Jo-Philipp Wich | |
| # ucode -mrtnl -Rs 'printf("%.J", rtnl.request(rtnl.const.RTM_GETLINK, 0, { dev: "lo" }))' { "family": 0, "type": 772, "dev": "lo", "flags": 65609, "address": "00:00:00:00:00:00", "broadcast": "00:00:00:00:00:00", "txqlen": 1000, "mtu": 65536, "carrier": true, "linkmode": 0, "operstate": 0, "num_tx_queues": 1, "num_rx_queues": 1, "af_spec": { "inet": { "conf": { "forwarding": 1, "mc_forwarding": 0, "proxy_arp": 0, "accept_redirects": 1, "secure_redirects": 1, "send_redirects": 1, "shared_media": 1, "rp_filter": 0, "accept_source_route": 1, "bootp_relay": 0, "log_martians": 0, "tag": 0, "arpfilter": 0, "medium_id": 0, "noxfrm": 1, "nopolicy": 1, "force_igmp_version": 0, "arp_announce": 0, "arp_ignore": 0, "promote_secondaries": 0, "arp_accept": 0, "arp_notify": 0, "accept_local": 0, "src_vmark": 0, "proxy_arp_pvlan": 0, "route_localnet": 0, "igmpv2_unsolicited_report_interval": 10000, "igmpv3_unsolicited_report_interval": 1000, "ignore_routes_with_linkdown": 0, "drop_unicast_in_l2_multicast": 0, "drop_gratuitous_arp": 0, "bc_forwarding": 0 } }, "inet6": { "mode": 0, "flags": 2147483648, "conf": { "forwarding": 0, "hoplimit": 64, "mtu6": 65536, "accept_ra": 1, "accept_redirects": 1, "autoconf": 1, "dad_transmits": 1, "rtr_solicits": -1, "rtr_solicit_interval": 4000, "rtr_solicit_delay": 1000, "use_tempaddr": -1, "temp_valid_lft": 604800, "temp_prefered_lft": 86400, "regen_max_retry": 3, "max_desync_factor": 600, "max_addresses": 16, "force_mld_version": 0, "accept_ra_defrtr": 1, "accept_ra_pinfo": 1, "accept_ra_rtr_pref": 1, "rtr_probe_interval": 60000, "accept_ra_rt_info_max_plen": 0, "proxy_ndp": 0, "optimistic_dad": 0, "accept_source_route": 0, "mc_forwarding": 0, "disable_ipv6": 0, "accept_dad": -1, "force_tllao": 0, "ndisc_notify": 0, "mldv1_unsolicited_report_interval": 10000, "mldv2_unsolicited_report_interval": 1000, "suppress_frag_ndisc": 1, "accept_ra_from_local": 0, "use_optimistic": 0, "accept_ra_mtu": 1, "stable_secret": 0, "use_oif_addrs_only": 0, "accept_ra_min_hop_limit": 1, "ignore_routes_with_linkdown": 0, "drop_unicast_in_l2_multicast": 0, "drop_unsolicited_na": 0, "keep_addr_on_down": 0, "rtr_solicit_max_interval": 3600000, "seg6_enabled": 0, "seg6_require_hmac": 0, "enhanced_dad": 1, "addr_gen_mode": 0, "disable_policy": 0, "accept_ra_rt_info_min_plen": 0, "ndisc_tclass": 0, "rpl_seg_enabled": 0 } } }, "proto_down": false, "group": 0, "ifname": "lo" } Signed-off-by: Jo-Philipp Wich <jo@mein.io> | |||
| 2021-09-15 | rtnl: allow reply nla payloads to be smaller than headsize | Jo-Philipp Wich | |
| Some netlink replies contain attributes with embeded payloads whose length depends on the kernel version, e.g. IFLA_INET_CONF and IFLA_INET6_CONF. Deal with such cases by allowing the payloads to be shorter than the expected size and by skipping struct members which would lead to out-of-bounds accesses. Signed-off-by: Jo-Philipp Wich <jo@mein.io> | |||
| 2021-09-15 | lib: introduce Linux route netlink binding | Jo-Philipp Wich | |
| Signed-off-by: Jo-Philipp Wich <jo@mein.io> | |||
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