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path: root/source3/nmbd/asyncdns.c
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2009-05-27s3: Allow child processes to exit gracefully if we are out of fdsMarc VanHeyningen1-2/+2
When we run out of file descriptors for some reason, every new connection forks a child that immediately panics causing smbd to coredump. This seems unnecessarily harsh; with this code change we now catch that error and merely log a message about it and exit without the core dump. Signed-off-by: Tim Prouty <tprouty@samba.org>
2009-01-27s3:nmbd: as the sig_term() handler only sets a flag we don't need to block ↵Stefan Metzmacher1-12/+0
SIGTERM The arguments of commit d98bea900ee694cdba83149620c65bd7f8765f26 are no longer valid. metze
2009-01-05clean event context after child is forked.Bo Yang1-1/+2
Signed-off-by: Stefan Metzmacher <metze@samba.org>
2008-04-23Fix CLEAR_IF_FIRST handling of messages.tdbVolker Lendecke1-1/+1
We now open messages.tdb even before we do the become_daemon. become_daemon() involves a fork and an immediate exit of the parent, thus the parent_is_longlived argument must be set to false in this case. The parent is not really long lived :-) (This used to be commit 4f4781c6d17fe2db34dd5945fec52a7685448aec)
2008-04-18nmbd: call reinit_after_fork() in all needed casesStefan Metzmacher1-0/+5
metze (This used to be commit f68829ff14c457bfa98cb2ef9e8ec2e1a0b1d64d)
2008-02-02Convert read_data() to NTSTATUSVolker Lendecke1-7/+12
(This used to be commit af40b71023f8c4a2133d996ea698c72b97624043)
2007-11-05Remove the horror that was the global smb_rw_error.Jeremy Allison1-2/+2
Each cli struct has it's own local copy of this variable, so use that in client code. In the smbd server, add one static to smbd/proccess.c and use that inside smbd. Fix a bunch of places where smb_rw_error could be set by calling read_data() in places where we weren't reading from the SMB client socket (ie. winbindd). Jeremy. (This used to be commit 255c2adf7b6ef30932b5bb9f142ccef4a5d3d0db)
2007-10-18RIP BOOL. Convert BOOL -> bool. I found a few interestingJeremy Allison1-4/+4
bugs in various places whilst doing this (places that assumed BOOL == int). I also need to fix the Samba4 pidl generation (next checkin). Jeremy. (This used to be commit f35a266b3cbb3e5fa6a86be60f34fe340a3ca71f)
2007-10-10r23784: use the GPLv3 boilerplate as recommended by the FSF and the license textAndrew Tridgell1-2/+1
(This used to be commit b0132e94fc5fef936aa766fb99a306b3628e9f07)
2007-10-10r23779: Change from v2 or later to v3 or later.Jeremy Allison1-1/+1
Jeremy. (This used to be commit 407e6e695b8366369b7c76af1ff76869b45347b3)
2007-10-10r17807: Fix a file descriptor leak pointed out by John Malmberg. Thanks!Volker Lendecke1-0/+1
Volker (This used to be commit fac007ccbec75f5ee9ff2769d8add4d27e62167d)
2007-10-10r12214: Fix compile if SYNC_DNS is set.Jeremy Allison1-1/+1
Jeremy. (This used to be commit 7c545e1e77c3e235b21eb11d5ced91c603da491d)
2007-10-10r12107: Move to a tdb-based wins database. At the moment we stillJeremy Allison1-12/+14
use it as though it were an in-memory db and dump out to a flat file every 2 mins, but that can now change. Jeremy. (This used to be commit a342681792724c1ae8561ba8d352c4ee6e2a5332)
2007-10-10r10656: BIG merge from trunk. Features not copied overGerald Carter1-1/+1
* \PIPE\unixinfo * winbindd's {group,alias}membership new functions * winbindd's lookupsids() functionality * swat (trunk changes to be reverted as per discussion with Deryck) (This used to be commit 939c3cb5d78e3a2236209b296aa8aba8bdce32d3)
2004-03-15Use "unix netbios name" type unstring - 64 bytes long to manipulate netbiosJeremy Allison1-5/+4
names in nmbd. Allows conversion from dos codepage mb strings (ie. SJIS) to expand to utf8 size on read. Jeremy. (This used to be commit 834d816caf9cd6318da00febde50d9233469dac2)
2004-03-13Modified fix for bugid #784. Based on a patch from moriyama@miraclelinux.com ↵Jeremy Allison1-2/+2
(MORIYAMA Masayuki). Don't use nstrings to hold workgroup and netbios names. The problem with them is that MB netbios and workgroup names in unix charset (particularly utf8) may be up to 3x bigger than the name when represented in dos charset (ie. cp932). So go back to using fstrings for these but translate into nstrings (ie. 16 byte length values) for transport on the wire. Jeremy. (This used to be commit b4ea493599ab414f7828b83f40a5a8b43479ff64)
2003-08-27Fix the character set handling properly in nmbd. Also fix bug whereJeremy Allison1-34/+39
iconv wasn't re-initialised on reading of "charset" parameters. This caused workgroup name to be set incorrectly if it contained an extended character. Jeremy. (This used to be commit 84ae44678a6c59c999bc1023fdd9b7ad87f4ec18)
2002-08-17sync 3.0 branch with headJelmer Vernooij1-0/+1
(This used to be commit 3928578b52cfc949be5e0ef444fce1558d75f290)
2002-03-20Add assertions that kill() is never accidentally passed a non-positiveMartin Pool1-2/+3
pid. This follows a bug in rsync where it would accidentally kill(-1), removing all the user's processes. I can't see any way this would directly happen in Samba, but having the assertions seems beneficial. http://cvs.samba.org/cgi-bin/cvsweb/rsync/util.c.diff?r1=1.108&r2=1.109&f=h (This used to be commit 098905bea29c7d5b886809d431294ddf2fc1e152)
2002-01-30Removed version number from file header.Tim Potter1-1/+1
Changed "SMB/Netbios" to "SMB/CIFS" in file header. (This used to be commit 6a58c9bd06d0d7502a24bf5ce5a2faf0a146edfa)
2001-10-02Removed 'extern int DEBUGLEVEL' as it is now in the smb.h header.Tim Potter1-2/+0
(This used to be commit 2d0922b0eabfdc0aaf1d0797482fef47ed7fde8e)
2000-05-02Added sys_fork() and sys_getpid() functions to stop the overheadJeremy Allison1-1/+1
of doing a system call every time we want to just get our pid. Jeremy. (This used to be commit 148628b616b5c29ba6340d65fc3ddbcabba6e67a)
1999-12-13first pass at updating head branch to be to be the same as the SAMBA_2_0 branchAndrew Tridgell1-2/+2
(This used to be commit 453a822a76780063dff23526c35408866d0c0154)
1998-11-14Removed acconfig.h configure configure.in include/config.h.in: Made ↵Jeremy Allison1-2/+2
smbwrapper not made by default. nmbd*: Changed all calls to namestr() to nmbd_namestr() to fix broken FreeBSD include file problem...sigh. Jeremy. (This used to be commit 9ee8f39aed8772a05c203161b4ae6b7d90d67481)
1998-09-17configure configure.in: Added tests for fseek64 and ftell64.Jeremy Allison1-1/+1
config.h.in: Added fseek64 and ftell64. includes.h: Added definition of SMB_BIG_INTEGER. smb.h: Changed (*getsmbpwpos) and (*setsmbpwpos) to use SMB_BIG_INTEGER. access.c: Tidyup of dbug statement. system.c: Added sys_fseek and sys_ftell. Changed mode calls to use mode_t. asyncdns.c: Tidyup of comment. loadparm.c: Tidyup of set_default_server_announce_type() function definition. ldap.c: Changed (*getsmbpwpos) and (*setsmbpwpos) to use SMB_BIG_INTEGER. nispass.c: Changed (*getsmbpwpos) and (*setsmbpwpos) to use SMB_BIG_INTEGER. smbpass.c: Changed (*getsmbpwpos) and (*setsmbpwpos) to use SMB_BIG_INTEGER. smbpassfile.c: Use sys_fseek(). chgpasswd.c: Tidyup of debug statement. dosmode.c: Changed mode calls to use mode_t. ipc.c: Removal of dead code. nttrans.c: Changed mode calls to use mode_t. open.c: Changed mode calls to use mode_t. pipes.c: Removal of dead code. reply.c: Removal of dead code. trans2.c: Removal of dead code. Changed mode calls to use mode_t. Jeremy. (This used to be commit c381d32e3dc23fe887408016cae821aceb30da2c)
1998-08-30a couple of debug linesAndrew Tridgell1-0/+2
(This used to be commit 03d343ddf5ef672afb3cf1fa65f86eb2c0a48772)
1998-08-15configure: Changes for extra headers.Jeremy Allison1-3/+1
configure.in: Source for header changes. client/clitar.c: Fixed isXXX macros & debugs for gcc pedantic compile. include/config.h.in: Added MEMSET, BZERO, MEMORY, RPCSVC_YPCLNT, STRINGS headers. include/includes.h: Headers for the above. include/smb.h: Made SIGNAL_CAST POSIX by default void (*)(int). lib/access.c: Fixed isXXX macros & debugs for gcc pedantic compile. lib/charset.c: Fixed isXXX macros & debugs for gcc pedantic compile. lib/debug.c: Fixed signal functs. lib/kanji.c: Fixed isXXX macros & debugs for gcc pedantic compile. lib/smbrun.c: Fixed isXXX macros & debugs for gcc pedantic compile. lib/util.c: Fixed isXXX macros & debugs for gcc pedantic compile. libsmb/namequery.c: Fixed isXXX macros & debugs for gcc pedantic compile. locking/shmem.c: Fixed isXXX macros & debugs for gcc pedantic compile. locking/shmem_sysv.c: Fixed error messages in sysV stuff. nmbd/asyncdns.c: Fixed signal functs. nmbd/nmbd.c: Fixed isXXX macros & debugs for gcc pedantic compile. passdb/passdb.c: Fixed isXXX macros & debugs for gcc pedantic compile. passdb/smbpassfile.c: Fixed isXXX macros & debugs for gcc pedantic compile. smbd/chgpasswd.c: Fixed isXXX macros & debugs for gcc pedantic compile. smbd/ipc.c: Fixed isXXX macros & debugs for gcc pedantic compile. smbd/nttrans.c: Fixed fsp code path. smbd/password.c: fixed HAVE_YP_GET_DEFAULT_DOMAIN problem. smbd/printing.c: Fixed isXXX macros & debugs for gcc pedantic compile. smbd/reply.c: Fixed isXXX macros & debugs for gcc pedantic compile. smbd/server.c: Fixed isXXX macros & debugs for gcc pedantic compile. smbd/trans2.c: Fixed core dump bug. smbd/uid.c: Fixed isXXX macros & debugs for gcc pedantic compile. Jeremy. (This used to be commit 1b9cbcd02e575dc0a95fa589f720df30a4acc46b)
1998-07-29merge from the autoconf2 branch to the main branchAndrew Tridgell1-5/+5
(This used to be commit 3bda7ac417107a7b01d91805ca71c4330657ed21)
1998-06-08Cosmetic. Added a cast to (void) to a call to add_name_to_subnet() sinceChristopher R. Hertel1-5/+5
the return value was being ignored anyway. SGI's lint said: function returns value which is sometimes ignored add_name_to_subnet Chris -)----- (This used to be commit ae706bff10cc77f06b8069e637ec9768d6a46966)
1998-04-13Changes to allow Samba to be compiled with -Wstrict-prototypesJeremy Allison1-3/+3
with gcc. (Not a big change although it looks like it :-). Jeremy. (This used to be commit cd2613c57261456485fe4eeecfda209ada70de8e)
1998-03-03Change the multibyte character set support so thatJeremy Allison1-1/+21
Kanji support is one case of multibyte character support, rather than being a specific case in single byte character support. This allows us to add Big5 Chinese support (code page 950) and Korean Hangul support (code page 949) at very little cost. Also allows us to easily add future multibyte code pages. Makefile: Added codepages 949, 950 as we now support more multibyte codepages. asyncdns.c: Fixed problem with child being re-spawned when parent killed. charcnv.c charset.c client.c clitar.c kanji.c kanji.h smb.h util.c loadparm.c: Generic multibyte codepage support (adding Big5 Chinese and Korean Hangul). nmbd.c: Fixed problem with child being re-spawned when parent killed. mangle.c: Modified str_checksum so that first 15 characters have more effect on outcome. This helps with short name mangling as most 'long' names are still shorter than 15 chars (bug was foobar_mng and foobar_sum would hash to the same value, with the modified code they hash differently. Jeremy. (This used to be commit 299016338cfb47f0c585875ef9b468121fcee97d)
1998-01-29Makefile: Fix for OSF1 typo.Jeremy Allison1-0/+12
asyncdns.c: Fixes that went into 1.9.18p2 - allow unclocking of sigterm. chgpasswd.c: char -> unsigned char fixes. includes.h: AIX fix to get prototype for inet_ntoa. local.h: Tune size of shared memory based on MAX_OPEN_FILES. nmbd_mynames.c: Fix for nmbd repeated refresh bug. nmbd_responserecordsdb.c: Fix for nmbd repeated refresh bug. nmbd_winsserver.c: Fix for multi-homed registration optimisation. smb.h: Moved default shared memory size to local.h Jeremy. (This used to be commit fa5466805685d461564054d7d9947948fc56ae93)
1998-01-22This is *not* a big change (although it looks like one).Jeremy Allison1-1/+1
This is merely updating the Copyright statements from 1997 to 1998. It's a once a year thing :-). NO OTHER CHANGES WERE MADE. Jeremy. (This used to be commit b9c16977231efb274e08856f7f3f4408dad6d96c)
1997-12-26use _exit to exit a childAndrew Tridgell1-6/+2
(This used to be commit 992b1cbc143be910d9b8e65afdc82c43d33650a5)
1997-12-13This is it ! The mega-merge of the JRA_NMBD_REWRITE branchJeremy Allison1-17/+47
back into the main tree. For the cvs logs of all the files starting nmbd_*.c, look in the JRA_NMBD_REWRITE branch. That branch has now been discontinued. Jeremy. (This used to be commit d80b0cb645f81d16734929a0b27a91c6650499bb)
1997-12-04catch signals in the async dns daemon and allow it to auto-restart ifAndrew Tridgell1-0/+9
necessary (This used to be commit fa599067f074647a5bad2ffd0fce12ae0a4e43d2)
1997-12-04allow for zero size reads in asyncdns. These can happen after a signalAndrew Tridgell1-3/+6
(This used to be commit 8bac91a6e7a3601b093cb64e9cb3bcc1663fb4d4)
1997-12-02asyncdns.c: Removed warning when compiling with -DSYNC_DNS.Jeremy Allison1-1/+0
nameelect.c: Tidied up settings of work->ServerType when unbecoming things. nmbd.c: Fixed pidFile warning. server.c: Fixed pidFile warning. Jeremy. (This used to be commit 94d53dcac5d06e48be5cea9d54625da795f62d20)
1997-11-02fix commentsAndrew Tridgell1-9/+2
(This used to be commit b3fd976b6c5c8342d04d87a7523864b09918d260)
1997-11-02to avoid any possibility of the pipe getting full and blocking we nowAndrew Tridgell1-27/+58
only allow one query in the async dns pipe at a time. The others are queued in the parent. (This used to be commit f1004dd52adb29d088f0725e2c940ed44d3a764f)
1997-11-01minor async DNS cleanupsAndrew Tridgell1-3/+2
- start it earlier - set DEBUGLEVEL to -1 to prevent any debug calls in child - exit with _exit() to prevent logfile corruption (This used to be commit 21dd073a2003fa4707c1577a6b07bcef30eb6a50)
1997-10-23Big change to make nmbd code more readable/understandable.Jeremy Allison1-16/+16
Main change is removal of find_name_search() confusion. This has been replaced with find_name_on_subnet() which makes it explicit what is being searched. Also changed wins_subnet to be wins_client_subnet in preparation for splitting the wins subnet into client and server pieces. This is a big nmbd change and I'd appreciate any bug reports. Specific changes follow : asyncdns.c: Removed wins entry from add_netbios_entry(). This is now explicit in the subnet_record parameter. interface.c: iface_bcast(), iface_nmask(), iface_ip() return the default interface if none can be found. Made this behavior explicit - some code in nmbd incorrectly depended upon this (reply_name_status() for instance). nameannounce.c: find_name_search changes to find_name_on_subnet. namebrowse.c: wins_subnet renamed to wins_client_subnet. namedbname.c: find_name_search removed. find_name_on_subnet added. add_netbios_entry - wins parameter removed. namedbsubnet.c: find_req_subnet removed - not explicit enough. nameelect.c: wins_subnet renamed to wins_client_subnet. namepacket.c: listening() simplified. nameresp.c: wins_subnet renamed to wins_client_subnet. nameserv.c: find_name_search moved to find_name_on_subnet. nameserv.h: FIND_XXX -> changed to FIND_SELF_NAME, FIND_ANY_NAME. nameservreply.c: find_name_search moved to find_name_on_subnet. Debug entries changed. nameservresp.c: wins_subnet renamed to wins_client_subnet. namework.c: wins_subnet renamed to wins_client_subnet. nmbd.c: wins parameter removed from add_netbios_entry. nmbsync: wins_subnet renamed to wins_client_subnet. proto.h: The usual. server.c: remove accepted fd from fd_set. Jeremy (jallison@whistle.com) (This used to be commit 2c97b33fc0b5ef181dbf51a50cb61074935165bf)
1997-10-22Implemented asynchronous DNS lookups in nmbd.Andrew Tridgell1-0/+257
I realised this afternoon just how easy it is to add this, so I thought I'd implement it while the idea was fresh. nmbd forks at startup and uses a pipe to talk to its child. The child does the DNS lookups and the file descriptor of the child is added to the main select loop. While I was doing this I discovered a bug in nmbd that explains why the dns proxy option has been so expensive. The DNS cache entries in the WINS list were never being checked, which means we always did a DNS lookup even if we have done it before and it is in cache. I'm sure this used to work (I tested the DNS cache when I added it) so someone broke it :-( Anyway, the async DNS gets rid of the problem completely. I'll commit just the fix to the DNS cache bug to the 1.9.17 tree. You can disable async DNS by adding -DSYNC_DNS to the compile flags. (This used to be commit 178e27de0791c1ff3268cb456ed5c5efc9ac2a01)
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