Make struct k5buf less opaque and get rid of k5buf-int.h.  Make it
easy to initialize a k5buf in an error state so that it can be freed
in a cleanup handler.  Add a function k5_buf_status which returns 0 or
ENOMEM.  Remove k5_buf_data and k5_buf_len.  Rename k5_free_buf to
k5_buf_free.  Adjust all callers to match.

The Solaris native compiler (as of version 5.9) outputs code for
static inline functions even if they are not used.  So the
k5buf_to_gss helper in gssapiP_generic.h causes t_seqstate to have a
dependency on libkrb5support.

ticket: 7872

Replace util_ordering.c with a new file util_seqstate.c, implemented
using a bitmap of previously received sequence numbers instead of a
20-element circular queue.  This approach has slightly different
limitations--it can check for replays for values within 64 of the
expected next number, where the old code could check within the range
of the last 20 received numbers regardless of how far apart they are.
The new approach should work as well or better for any realistic
packet reordering scenario.

ticket: 7879 (new)

Use an opaque structure type instead of a void pointer for the
sequence number state.  Rename all functions to use a g_seqstate
prefix rather than a mix of g_order and g_queue.  Remove the
unneccessary indirection from the state object parameter in
g_seqstate_check and g_seqstate_free.  Return OM_uint32 where we
return a GSS major code, long where we return an errno value, and void
where we can't fail.

ticket: 7872

Since #2040, the dummy queue element inserted by g_order_init no
longer compares less than the initial sequence number, so we fail when
the first few sequence numbers are received out of order.  Properly
detect when a sequence number fits between the dummy element and the
first real queue element.

[ghudson@mit.edu: rewrote commit message]

ticket: 7872
target_version: 1.12.2
tags: pullup

Since we no longer prefix an "#include <stdint.h>" in the gssapi.h
preamble at build time, include it in gssapi.hin.

Update util/gss/kernel-lib/Makefile.in to account for gssapi_krb5.h
being in the source tree.

Directly use stdint.h names for integer types in preference to the
various internal names we have made up for them.

Make unconditional use of <stdint.h> and fixed-width types such as
uint32_t.  k5-plugin.h doesn't use any special integer types, so
remove the conditional include block there.  Nothing uses
INT64_FMT/UINT64_FMT, so leave those out of k5-platform.h for now.

Add gss_get_mic_iov, gss_get_mic_iov_length, and gss_verify_mic_iov
functions, which work similarly to the corresponding IOV wrap
functions.  Add a new buffer type GSS_IOV_BUFFER_TYPE_MIC_TOKEN for
the destination buffer.

Most of the internal code for this was already present, and just
needed to be fixed up and adjusted to use the new buffer type for the
MIC token.

ticket: 7705 (new)