54646b8e05
Currently the code assumes the set of valid options between getsockopt
and setsockopt are exactly the same and thus maintains one list. The
kernel unfortunately does not do this -- it allows for different opts
between the get and set functions. See the {g,s}et_opt{min,max} fields
in the various netfilter subcores.
To support this, extend the printxval function to take multiple sets of
xlats as varargs. Then we add the new get/set lists, and pass them down
in the net code when decoding things.
A simple example is iptables; before:
getsockopt(4, SOL_IP, 0x40 /* IP_??? */, ...) = 0
getsockopt(4, SOL_IP, 0x41 /* IP_??? */, ...) = 0
after:
getsockopt(4, SOL_IP, IPT_SO_GET_INFO, ...) = 0
getsockopt(4, SOL_IP, IPT_SO_GET_ENTRIES, ...) = 0
If these were setsockopt calls, then 0x40 & 0x41 would be
IPT_SO_SET_REPLACE & IPT_SO_SET_ADD_COUNTERS.
* configure.ac: Check for netfilter headers.
* defs.h (printxvals): New prototype.
(printxval): Change to a define.
* net.c: Include netfilter headers and new sockopts headers.
(print_sockopt_fd_level_name): Add a is_getsockopt argument. Change SOL_IP
and SOL_IPV6 decoding to use printxvals, and use is_getsockopt to pass more
xlats down.
(getsockopt): Call print_sockopt_fd_level_name with is_getsockopt as true.
(setsockopt): Call print_sockopt_fd_level_name with is_getsockopt as false.
* util.c (printxval): Rename to ...
(printxvals): ... this. Rewrite to be varargs based.
* xlat/getsockipoptions.in: New xlat list.
* xlat/getsockipv6options.in, xlat/setsockipoptions.in,
xlat/setsockipv6options.in: Likewise.
32 lines
582 B
Plaintext
32 lines
582 B
Plaintext
/*
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* Options specific to setsockopt(SOL_IP).
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* Common {g,s}etsockopt(SOL_IP) options
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* should be in sockipoptions.in instead.
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*/
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ARPT_SO_SET_REPLACE
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ARPT_SO_SET_ADD_COUNTERS
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EBT_SO_SET_ENTRIES
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EBT_SO_SET_COUNTERS
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IP_VS_SO_SET_NONE
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IP_VS_SO_SET_INSERT
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IP_VS_SO_SET_ADD
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IP_VS_SO_SET_EDIT
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IP_VS_SO_SET_DEL
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IP_VS_SO_SET_FLUSH
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IP_VS_SO_SET_LIST
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IP_VS_SO_SET_ADDDEST
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IP_VS_SO_SET_DELDEST
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IP_VS_SO_SET_EDITDEST
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IP_VS_SO_SET_TIMEOUT
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IP_VS_SO_SET_STARTDAEMON
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IP_VS_SO_SET_STOPDAEMON
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IP_VS_SO_SET_RESTORE
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IP_VS_SO_SET_SAVE
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IP_VS_SO_SET_ZERO
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IPT_SO_SET_REPLACE
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IPT_SO_SET_ADD_COUNTERS
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