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| author | Dmitry V. Levin <ldv@strace.io> | 2021-02-03 08:00:00 +0000 |
|---|---|---|
| committer | Dmitry V. Levin <ldv@strace.io> | 2021-02-03 08:00:00 +0000 |
| commit | ecb3ed78107c851f71696df6730a15afff91ed3d (patch) | |
| tree | 0b3d2b083040fc9b08d129f80d027ff41b995059 /src/rtnl_addrlabel.c | |
| parent | c47943de06204a269e16f732e7c9c71d4284b23f (diff) | |
| download | strace-ecb3ed78107c851f71696df6730a15afff91ed3d.tar.gz | |
Move source files into src subdirectory
* src/Makefile.am: New file.
* src/.gitignore: Likewise.
* scno.am: Move into src subdirectory.
* scno.head: Likewise.
* strace-graph: Likewise.
* strace-log-merge: Likewise.
* linux/: Likewise.
* types/: Likewise.
* xlat/: Likewise.
* *.awk: Likewise.
* *.c: Likewise.
* *.h: Likewise.
* *.sh: Likewise.
* .gitignore: Update.
* Makefile.am: Update.
* bootstrap: Update.
* configure.ac: Update.
* debian/rules: Update.
* debian/strace-udeb.install: Update.
* debian/strace.examples: Update.
* debian/strace.install: Update.
* debian/strace64.install: Update.
* m4/gen_bpf_attr_m4.sh: Update.
* m4/mpers.m4: Update.
* tests/Makefile.am: Update.
* tests/init.sh: Update.
* tests/legacy_syscall_info.test: Update.
* tests/strace-log-merge-error.test: Update.
* tests/strace-log-merge-suffix.test: Update.
Diffstat (limited to 'src/rtnl_addrlabel.c')
| -rw-r--r-- | src/rtnl_addrlabel.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/rtnl_addrlabel.c b/src/rtnl_addrlabel.c new file mode 100644 index 000000000..c4b22f012 --- /dev/null +++ b/src/rtnl_addrlabel.c @@ -0,0 +1,77 @@ +/* + * 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. + * + * SPDX-License-Identifier: LGPL-2.1-or-later + */ + +#include "defs.h" + +#ifdef HAVE_STRUCT_IFADDRLBLMSG + +# include "netlink_route.h" +# include "nlattr.h" + +# include <linux/if_addrlabel.h> +# include "netlink.h" + +# include "xlat/rtnl_addrlabel_attrs.h" + +static bool +decode_ifal_address(struct tcb *const tcp, + const kernel_ulong_t addr, + const unsigned int len, + const void *const opaque_data) +{ + const struct ifaddrlblmsg *const ifal = opaque_data; + + decode_inet_addr(tcp, addr, len, ifal->ifal_family, NULL); + + return true; +} + +static const nla_decoder_t ifaddrlblmsg_nla_decoders[] = { + [IFAL_ADDRESS] = decode_ifal_address, + [IFAL_LABEL] = decode_nla_u32 +}; + +DECL_NETLINK_ROUTE_DECODER(decode_ifaddrlblmsg) +{ + struct ifaddrlblmsg ifal = { .ifal_family = family }; + size_t offset = sizeof(ifal.ifal_family); + bool decode_nla = false; + + tprint_struct_begin(); + PRINT_FIELD_XVAL(ifal, ifal_family, addrfams, "AF_???"); + + tprints(", "); + if (len >= sizeof(ifal)) { + if (!umoven_or_printaddr(tcp, addr + offset, + sizeof(ifal) - offset, + (char *) &ifal + offset)) { + PRINT_FIELD_U(ifal, ifal_prefixlen); + tprint_struct_next(); + PRINT_FIELD_U(ifal, ifal_flags); + tprint_struct_next(); + PRINT_FIELD_IFINDEX(ifal, ifal_index); + tprint_struct_next(); + PRINT_FIELD_U(ifal, ifal_seq); + decode_nla = true; + } + } else + tprint_more_data_follows(); + tprint_struct_end(); + + offset = NLMSG_ALIGN(sizeof(ifal)); + if (decode_nla && len > offset) { + tprints(", "); + decode_nlattr(tcp, addr + offset, len - offset, + rtnl_addrlabel_attrs, "IFAL_???", + ifaddrlblmsg_nla_decoders, + ARRAY_SIZE(ifaddrlblmsg_nla_decoders), &ifal); + } +} + +#endif |