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59 Commits

Author SHA1 Message Date
Eugene Syromyatnikov
9d095c7860 Add copyright headers 2017-05-22 17:33:51 +00:00
Dmitry V. Levin
1be0e27b0b netlink: decode NLMSG_ERROR messages 
* netlink.c (decode_nlmsgerr, decode_payload): New functions.
(decode_nlmsghdr_with_payload): Use decode_payload.
* tests/netlink_protocol.c (send_query): Check decoding
of NLMSG_ERROR messages.
* NEWS: Mention this change.
 2017-04-17 04:37:41 +00:00
Dmitry V. Levin
51929c017a netlink: avoid using unaligned sizeof(struct nlmsghdr) unnecessarily 
* netlink.c (NLMSG_HDRLEN): Redefine.
(decode_nlmsghdr_with_payload, decode_netlink): Use it instead
of sizeof(struct nlmsghdr).
 2017-04-17 04:37:29 +00:00
Dmitry V. Levin
7fa3d78319 Automatically replace kernel_(scno|ureg)_t with kernel_ulong_t 
Remove temporary types created for transition from long
to kernel_ulong_t.

Automatically replace kernel_scno_t and kernel_ureg_t with
kernel_ulong_t using
$ git grep -El 'kernel_(scno|ureg)_t' |
  xargs sed -ri 's/kernel_(scno|ureg)_t/kernel_ulong_t/g'

* kernel_types.h (kernel_scno_t, kernel_ureg_t): Remove.
All users updated.
 2016-12-26 10:43:34 +00:00
Dmitry V. Levin
b19829eaf4 netlink: change size types from unsigned long to kernel_ureg_t 
* defs.h (decode_netlink): Change len argument type from unsigned long
to kernel_ureg_t.
* netlink.c (fetch_nlmsghdr): Likewise.
(decode_nlmsghdr_with_payload): Likewise.  Change nlmsg_len variable
type from unsigned long to unsigned int.
(decode_netlink): Change the type of len argument and next_len variable
from unsigned long to kernel_ureg_t.  Change nlmsg_len variable type
from unsigned long to unsigned int.
 2016-12-25 11:32:46 +00:00
Dmitry V. Levin
a940d1a60f printstr: rename to printstrn, add printstr as a thin wrapper 
As about half of all printstr uses cases are invocations with the last
argument set to -1, create a dedicated function for this use case.

* defs.h (printstr): Rename to printstrn.  All callers updated.
(printstr): New static inline function.  All callers updated.
 2016-12-25 11:32:45 +00:00
Dmitry V. Levin
b6b3dc4361 decode_netlink: change address argument type from unsigned long to kernel_ureg_t 
* defs.h (decode_netlink) Change address argument type
from unsigned long to kernel_ureg_t.
* netlink.c (fetch_nlmsghdr, decode_nlmsghdr_with_payload,
decode_netlink): Likewise.
 2016-12-23 19:26:57 +00:00
Dmitry V. Levin
deb0c18871 netlink: handle multipart netlink messages 
Handle multipart netlink messages made of multiple struct nlmsghdr
headers with associated payload in one byte stream.

* netlink.c (fetch_nlmsghdr, print_nlmsghdr,
decode_nlmsghdr_with_payload): New functions.
(decode_netlink): Use them.
* tests/netlink_parsing.c (send_query): Check them.
 2016-07-08 16:01:49 +00:00
Fabien Siron
2850f745ca Add a general netlink socket parser 
Introduce a general socket netlink parser which prints the header and
a string for the remaining part of the buffer.  It doesn't handle all
the netlink flags and types yet because the parser needs more
information, this will be implemented later.

* net.c (decode_sockbuf): New function.
(SYS_FUNC(send), SYS_FUNC(sendto), SYS_FUNC(recv), SYS_FUNC(recvfrom)):
Use it instead of printstr.
* msghdr.c (print_msghdr): Pass IOV_DECODE_NETLINK to tprint_iov_upto()
for netlink sockets.
* netlink.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* defs.h (decode_netlink, getfdproto): New prototypes.
(iov_decode): Add IOV_DECODER_NETLINK.
* io.c (print_iovec): Use decode_netlink().
* util.c (getfdproto): Remove static keyword.
* xlat/netlink_flags.in: New file.
* xlat/netlink_types.in: New file.
 2016-07-07 09:46:51 +00:00