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5a9d15cd4c
freebsd-nq/sys
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Robert Watson 5a9d15cd4c Historically, /dev/auditpipe has allows only whole records to be read via 
read(2), which meant that records longer than the buffer passed to read(2)
were dropped.  Instead take the approach of allowing partial reads to be
continued across multiple system calls more in the style of streaming
character device.

This means retaining a record on the per-pipe queue in a partially read
state, so maintain a current offset into the record.  Keep the record on
the queue during a read, so add a new lock, ap_sx, to serialize removal
of records from the queue by either read(2) or ioctl(2) requesting a pipe
flush.  Modify the kqueue handler to return bytes left in the current
record rather than simply the size of the current record.

It is now possible to use praudit, which used the standard FILE * buffer
sizes, to track much larger record sizes from /dev/auditpipe, such as
very long command lines to execve(2).

MFC after:	2 months
Sponsored by:	Apple, Inc.
2008-10-31 14:40:21 +00:00
..
amd64 Revert r184136. Instead, push the check for crashdumpmap overflow into the 2008-10-31 10:11:35 +00:00
arm Allow card reader bridge driver to report maximum supported transfer size. 2008-10-29 20:01:26 +00:00
boot Modify our boot block to pick an output device, without which boot1 will fail 2008-10-31 00:52:31 +00:00
bsm
cam Retire the MALLOC and FREE macros. They are an abomination unto style(9). 2008-10-23 15:53:51 +00:00
cddl Introduce accmode_t. This is required for NFSv4 ACLs - it will be neccessary 2008-10-28 13:44:11 +00:00
compat The code in linux_proc_exit() contains a race when multiple linux based 2008-10-31 10:38:30 +00:00
conf Make it possible to compile kernel with KTR but without DDB. 2008-10-30 21:48:28 +00:00
contrib Fix a number of style issues in the MALLOC / FREE commit. I've tried to 2008-10-23 20:26:15 +00:00
crypto
ddb Collect N identical (or near identical) mkdumpheader() implementations into 2008-10-01 22:08:53 +00:00
dev Add quirk to set GPIO2 to enable internal speaker on Dell Vostro 1400. 2008-10-30 17:54:20 +00:00
fs Introduce accmode_t. This is required for NFSv4 ACLs - it will be neccessary 2008-10-28 13:44:11 +00:00
gdb
geom Revert r184136. Instead, push the check for crashdumpmap overflow into the 2008-10-31 10:11:35 +00:00
gnu Introduce accmode_t. This is required for NFSv4 ACLs - it will be neccessary 2008-10-28 13:44:11 +00:00
i386 The file was inadvertently excluded from r184499. 2008-10-31 10:14:28 +00:00
ia64 Retire the MALLOC and FREE macros. They are an abomination unto style(9). 2008-10-23 15:53:51 +00:00
isa
kern Add three extra to the kinfo_proc_vmmap data. kve_offset - the offset 2008-10-31 05:43:19 +00:00
libkern Prefix the static shl function with '__' like its parent function __qdivrem to 2008-10-09 20:43:42 +00:00
mips Add mips/conf/DEFAULTS and populate it with: 2008-10-23 02:16:38 +00:00
modules Break mac_bsdextended.c out into multiple .c files, with the base access 2008-10-27 12:09:15 +00:00
net Fix a number of style issues in the MALLOC / FREE commit. I've tried to 2008-10-23 20:26:15 +00:00
net80211 Fix checks for fast frames negotiation. ni_ath_flags holds the 2008-10-30 16:22:04 +00:00
netatalk Retire the MALLOC and FREE macros. They are an abomination unto style(9). 2008-10-23 15:53:51 +00:00
netgraph Fix a number of style issues in the MALLOC / FREE commit. I've tried to 2008-10-23 20:26:15 +00:00
netinet Type of q_time (start of queue idle time) has changed: uint32_t -> uint64_t. 2008-10-28 14:14:57 +00:00
netinet6 Add a MAC label, MAC Framework, and MAC policy entry points for IPv6 2008-10-26 22:45:18 +00:00
netipsec Retire the MALLOC and FREE macros. They are an abomination unto style(9). 2008-10-23 15:53:51 +00:00
netipx Retire the MALLOC and FREE macros. They are an abomination unto style(9). 2008-10-23 15:53:51 +00:00
netnatm Retire the MALLOC and FREE macros. They are an abomination unto style(9). 2008-10-23 15:53:51 +00:00
netncp Retire the MALLOC and FREE macros. They are an abomination unto style(9). 2008-10-23 15:53:51 +00:00
netsmb Retire the MALLOC and FREE macros. They are an abomination unto style(9). 2008-10-23 15:53:51 +00:00
nfs
nfs4client Introduce accmode_t. This is required for NFSv4 ACLs - it will be neccessary 2008-10-28 13:44:11 +00:00
nfsclient Introduce accmode_t. This is required for NFSv4 ACLs - it will be neccessary 2008-10-28 13:44:11 +00:00
nfsserver Introduce accmode_t. This is required for NFSv4 ACLs - it will be neccessary 2008-10-28 13:44:11 +00:00
nlm
opencrypto Don't hang if encrypting/decrypting using struct iovecs where one of the 2008-10-30 16:11:07 +00:00
pc98 Improved IDE HDD geometry adjustment. Previous code didn't work with 2008-10-27 08:40:13 +00:00
pccard
pci Implement miibus_statchg handler. It detects whether rl(4) 2008-10-25 03:41:36 +00:00
powerpc Fix compilation in the case when kernel doesn't have KDB ebabled. 2008-10-30 21:02:00 +00:00
rpc Retire the MALLOC and FREE macros. They are an abomination unto style(9). 2008-10-23 15:53:51 +00:00
security Historically, /dev/auditpipe has allows only whole records to be read via 2008-10-31 14:40:21 +00:00
sparc64 - Turn off interrupts instead of only entering a critical section 2008-10-28 22:05:20 +00:00
sun4v - In GCC 4.2 __builtin_frame_address() was fixed to include the 2008-10-27 21:31:14 +00:00
sys Add three extra to the kinfo_proc_vmmap data. kve_offset - the offset 2008-10-31 05:43:19 +00:00
tools
ufs Introduce accmode_t. This is required for NFSv4 ACLs - it will be neccessary 2008-10-28 13:44:11 +00:00
vm Update mmap() comment: no more block devices, so no more block device 2008-10-22 16:50:12 +00:00
xdr
xen Fix evtchn initialization on SMP 2008-10-24 07:57:48 +00:00
Makefile