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freebsd-dev/sys/net
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Xin LI 0919a8fb99 MFC r206637: 
When an underlying ioctl(2) handler returns an error, our ioctl(2)
interface considers that it hits a fatal error, and will not copyout
the request structure back for _IOW and _IOWR ioctls, keeping them
untouched.

The previous implementation of the SIOCGIFDESCR ioctl intends to
feed the buffer length back to userland.  However, if we return
an error, the feedback would be defeated and ifconfig(8) would
trap into an infinite loop.

This commit changes SIOCGIFDESCR to set buffer field to NULL to
indicate the previous ENAMETOOLONG case.

Reported by:	bschmidt
2010-04-28 00:49:24 +00:00
..
bpf_buffer.c MFC: r196150 2009-08-12 17:45:55 +00:00
bpf_buffer.h Introduce support for zero-copy BPF buffering, which reduces the 2008-03-24 13:49:17 +00:00
bpf_filter.c Fix the last missing parentheses for a return statement in bpf_filter.c. 2008-08-29 20:00:55 +00:00
bpf_jitter.c Initialize scratch memory for JIT-compiled filter when it is allocated. 2008-08-28 16:40:51 +00:00
bpf_jitter.h Fix a typo in copyrights. 2008-08-25 20:43:13 +00:00
bpf_zerocopy.c MFC: r196150 2009-08-12 17:45:55 +00:00
bpf_zerocopy.h Make sure we are clearing the ZBUF_FLAG_IMMUTABLE any time a free buffer 2008-07-05 20:11:28 +00:00
bpf.c MFC: r205095 2010-04-05 17:37:35 +00:00
bpf.h Sync DLTs with latest libpcap version. 2009-04-02 13:02:12 +00:00
bpfdesc.h MFC: r196150 2009-08-12 17:45:55 +00:00
bridgestp.c Merge r196481 from head to stable/8: 2009-08-28 20:06:02 +00:00
bridgestp.h
ethernet.h Change if_output to take a struct route as its fourth argument in order 2009-04-16 20:30:28 +00:00
fddi.h Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
firewire.h Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
flowtable.c MFC 204902 2010-04-02 05:02:50 +00:00
flowtable.h MFC 205066, 205069, 205093, 205097, 205488: 2010-04-01 00:36:40 +00:00
ieee8023ad_lacp.c Use the flowid if its available for selecting the tx port. 2009-04-30 14:25:44 +00:00
ieee8023ad_lacp.h Remove extra semicolons. 2008-03-17 01:26:44 +00:00
if_arc.h Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
if_arcsubr.c Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
if_arp.h MFC r196797: 2010-01-28 16:48:44 +00:00
if_atm.h Change if_output to take a struct route as its fourth argument in order 2009-04-16 20:30:28 +00:00
if_atmsubr.c Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC 2009-06-05 14:55:22 +00:00
if_bridge.c MFC of a large number of ipfw and dummynet fixes and enhancements 2010-03-23 09:58:59 +00:00
if_bridgevar.h
if_clone.c MFC r206488: 2010-04-21 20:00:13 +00:00
if_clone.h Introduce and use a sysinit-based initialization scheme for virtual 2009-07-23 20:46:49 +00:00
if_dead.c During if_detach(), invoke if_dead() to set the ifnet's function 2009-04-23 11:51:53 +00:00
if_disc.c Change if_output to take a struct route as its fourth argument in order 2009-04-16 20:30:28 +00:00
if_dl.h
if_edsc.c
if_ef.c Merge r196482 from head to stable/8: 2009-08-28 20:07:38 +00:00
if_enc.c MFC of 197952 and 198075 2010-02-07 09:00:22 +00:00
if_enc.h Increase statistic counters for enc0 interface when enabled 2008-08-12 09:05:01 +00:00
if_epair.c MFC r204805: 2010-03-27 17:48:13 +00:00
if_ethersubr.c MFC of a large number of ipfw and dummynet fixes and enhancements 2010-03-23 09:58:59 +00:00
if_faith.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_fddisubr.c Break at_ifawithnet() into two variants: 2009-06-24 10:32:44 +00:00
if_fwsubr.c Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
if_gif.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_gif.h Remove unused VNET_SET() and related macros; only VNET_GET() is 2009-07-16 21:13:04 +00:00
if_gre.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_gre.h Add support for the optional key in the GRE header. 2008-06-20 17:26:34 +00:00
if_iso88025subr.c Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
if_lagg.c MFC r204901 2010-04-08 00:52:28 +00:00
if_lagg.h Change if_output to take a struct route as its fourth argument in order 2009-04-16 20:30:28 +00:00
if_llatbl.c MFC r206481: 2010-04-21 19:51:22 +00:00
if_llatbl.h MFC 205066, 205069, 205093, 205097, 205488: 2010-04-01 00:36:40 +00:00
if_llc.h
if_loop.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_media.c
if_media.h Implementation of the upcoming Wireless Mesh standard, 802.11s, on the 2009-07-11 15:02:45 +00:00
if_mib.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_mib.h
if_sppp.h
if_spppfr.c
if_spppsubr.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_stf.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_stf.h
if_tap.c MFC 205222 2010-04-02 05:12:46 +00:00
if_tap.h Add new TAPGIFNAME tap(4) character device ioctl. This is a 2008-09-08 22:43:55 +00:00
if_tapvar.h
if_tun.c MFC 205222 2010-04-02 05:12:46 +00:00
if_tun.h
if_types.h
if_var.h MFC r203834 and r205197: Make ALTQ work for drbr consumers. 2010-03-18 17:00:44 +00:00
if_vlan_var.h
if_vlan.c MFC r205411: 2010-03-29 00:08:58 +00:00
if.c MFC r206637: 2010-04-28 00:49:24 +00:00
if.h MFC 205222 2010-04-02 05:12:46 +00:00
iso88025.h Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
netisr.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
netisr.h Update epair(4) to the new netisr implementation and polish 2009-07-26 12:20:07 +00:00
pfil.c MFC of 197952 and 198075 2010-02-07 09:00:22 +00:00
pfil.h Merge r198219 from head to stable/8: 2009-10-21 09:53:55 +00:00
pfkeyv2.h Added support for NAT-Traversal (RFC 3948) in IPsec stack. 2009-06-12 15:44:35 +00:00
ppp_defs.h
radix_mpath.c MFC 204902 2010-04-02 05:02:50 +00:00
radix_mpath.h When RADIX_MPATH is enabled, the route selection is not rotating 2008-05-30 09:34:35 +00:00
radix.c MFC 204902 2010-04-02 05:02:50 +00:00
radix.h MFC of a large number of ipfw and dummynet fixes and enhancements 2010-03-23 09:58:59 +00:00
raw_cb.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
raw_cb.h Remove unused VNET_SET() and related macros; only VNET_GET() is 2009-07-16 21:13:04 +00:00
raw_usrreq.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
route.c MFC 204902 2010-04-02 05:02:50 +00:00
route.h MFC 205222 2010-04-02 05:12:46 +00:00
rtsock.c MFC r201282, r201543 2010-01-05 22:14:55 +00:00
slcompress.c
slcompress.h
vnet.c MFC r205345: 2010-04-21 19:45:41 +00:00
vnet.h MFC r205345: 2010-04-21 19:45:41 +00:00
zlib.c
zlib.h