| Commit message (Collapse) | Author | Age | Files | Lines |
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(pull request #808)
Format of EDNS options matches format of TCP options.
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(pull request #762)
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[skip ci]
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Update the output of three tests accordingly.
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Rename ns_nprint() to fqdn_print(), with _print suffix like in most
similar cases.
Moreover:
Move a misplaced comment.
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Response codes are unsigned; make the argument to ns_rcode() unsigned.
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The exceptions are currently:
Some EXTRACT_ in print-juniper.c, not used on packet buffer pointer.
An EXTRACT_BE_U_3 in addrtoname.c, not always used on packet buffer
pointer.
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Update the output of some tests accordingly.
Moreover:
Add a ndo_protocol field assignment.
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The functions are: nd_print, nd_printztn, nd_printn and nd_printzp.
Trying to make it clearer that they currently have to be used only on part
of the packet buffer.
Update some comments.
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Update this field in printer entry functions.
It will be used for some printings.
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Also, use it, and nd_ipv4, in sizeof() operations.
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This can prevent bizarre failures if, for example, you've done a
configuration in the top-level source directory, leaving behind one
config.h file, and then do an out-of-tree build in another directory,
with different configuration options. This way, we always pick up the
same config.h, in the build directory.
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The warnings were:
./print-domain.c:258:18: warning: no previous extern declaration for
non-static variable 'ns_type2str'
[-Wmissing-variable-declarations]
const struct tok ns_type2str[] = {
^
./print-domain.c:323:18: warning: no previous extern declaration for
non-static variable 'ns_class2str'
[-Wmissing-variable-declarations]
const struct tok ns_class2str[] = {
^
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Let the compiler do the optimizations (or not) based on build options.
Avoid 'value has been optimized out' messages in gdb using '-O0'.
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Make some types unsigned, and fix some loops to no longer depend on a
zero count rolling over to -1 when decremented.
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ND_TTEST2(var, l) -> ND_TTEST_LEN(p, l)
ND_TCHECK2(var, l) -> ND_TCHECK_LEN(p, l)
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In ND_PRINT() macro call(s) (step 9).
*(p)
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Now all the macros have a name meaning a count in bytes.
With _S_: signed, _U_: unsigned
e.g.:
EXTRACT_BE_32BITS -> EXTRACT_BE_U_4
EXTRACT_LE_32BITS -> EXTRACT_LE_U_4
...
EXTRACT_BE_INT32 -> EXTRACT_BE_S_4
and have:
EXTRACT_8BITS -> EXTRACT_U_1
EXTRACT_INT8 -> EXTRACT_S_1
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Now all the macros have a name meaning a count in bytes.
e.g.:
ND_TCHECK_32BITS -> ND_TCHECK_4
ND_TTEST_32BITS -> ND_TTEST_4
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It indicates clearly that these macros are used to extract big-endian
integral values.
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Most printer entry functions are based on the file name (without print-).
Do the same for DNS (ns_print -> domain_print)
This change allows easier update by script.
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This is what BIND 9.11.0-P2 does; it not only detects pointers that
loop, as "point backwards" means "point before anything we've processed
so far, including what we're processing right now", so the pointer can't
point to itself (as that's what we're processing right now).
This fixes an infinite loop discovered by Forcepoint's security
researchers Otto Airamo & Antti Levomäki.
Add a test using the capture file supplied by the reporter(s).
Also, add some infinite-pointer-loop captures.
More checks should be done. We might, for example, want to make sure
the upper 2 bits of the label length/pointer byte are 00 or 11, and that
if we encounter a pointer and jump backwards to what we think is a label
the label ends before the beginning of the last label we processed, to
make sure the pointer doesn't point backwards into the *middle* of a
label, and also make sure the entire name is <= 255 bytes long.
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Have separate routines for signed and unsigned relative time stamps.
Have the routine for signed time stamps handle the case of -2^31, where
you can't negate it and have the result fit in a 32-bit signed integer.
There are currently no users of the signed relative time stamp routine,
but it's there in case anybody needs it (and is passing 32-bit
quantitites, so that there's a risk that a packet might contain -2^31 as
the time stamp).
Fixes an array overflow found with American Fuzzy Lop by Hanno Böck.
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with the tag '\summary:' for greping.
Remark: Currently some printers have no summary line.
Moreover:
Summarize all printers with a single line in INSTALL.txt
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Have our own routines to convert between IPv4/IPv6 addresses and
strings; that helps if, for example, we want to build binary versions of
tcpdump for Windows that can run both on NT 5 (W2K/WXP), which doesn't
have inet_ntop() or inet_pton(), and NT 6 (Vista/7/8/10), which do. It
also means that we don't require IPv6 library support on UN*X to print
addresses (if somebody wants to build tcpdump for older UN*Xes lacking
IPv6 support in the system library or in add-on libraries).
Get rid of files in the missing directory that we don't need, and
various no-longer-necessary autoconf tests.
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Get the full log via: git log --follow netdissect-stdinc.h
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"DO" is a better description of the DNSSEC OK bit in the EDNS0 OPT record. See RFC 3225 section 3. There may be other bits allocated in the future that call themselves "Something OK".
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The purpose of this macro was to enable the file-by-file switch to NDO,
after which only tcpdump.c had a use of it and the definitions guarded
by it. Update tcpdump.c not to require them any more and dismiss the
unused definitions.
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And, as we require at least autoconf 2.61, and as autoconf 2.61 and
later have AC_TYPE_UINTn_T and AC_TYPE_INTn_T macros, we use them to
define the uintN_t and intN_t macros if the system doesn't define them
for us.
This lets us get rid of bitypes.h as well.
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Also add/remove tabs in a few involved functions to justify indentation.
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