[SCM] Samba Shared Repository - branch master updated
Jeremy Allison
jra at samba.org
Fri Jan 29 17:51:20 MST 2010
The branch, master has been updated
via 1876b5a... Fix a really interesting problem found by Volker's conversion of sessionsetup SPNEGO to asynchronous code.
from ce73f91... Fix const warning.
http://gitweb.samba.org/?p=samba.git;a=shortlog;h=master
- Log -----------------------------------------------------------------
commit 1876b5a7e33a1376a5e275a52f8fbab69fa82ab6
Author: Jeremy Allison <jra at samba.org>
Date: Fri Jan 29 16:41:53 2010 -0800
Fix a really interesting problem found by Volker's conversion of sessionsetup SPNEGO to asynchronous code.
Normally clistr_push_fn() can depend upon cli->outbuf being
initialized by negprot and sessionsetup packets, and cli->outbuf[smb_flgs2] being
correctly set with FLAGS2_UNICODE_STRINGS when cli_setup_packet() is called. When
all the sessionsetups are async, then cli_setup_packet() is never called, the async
code uses cli_setup_packet_buf() - which initializes the allocated async buffer,
not the cli->outbuf one. So the first time clistr_push_fn() is called is from
libsmb/clidfs.c:cli_dfs_get_referral(), just after the connection and tconX.
In this case cli->outbuf has never been initialized, and cli->outbuf[smb_flgs2] = 0
so the DFS query pushes ASCII on the wire, which is not what we want :-).
Remove the dependency on cli->outbuf[smb_flgs2] in clistr_push_fn(), and
fake up a SVAL(cli->outbuf, smb_flg2) value using cli_ucs2(cli) function
instead, which has been initialized. We only care about the FLAGS2_UNICODE_STRINGS
bit anyway.
I don't think this is an issue for 3.5.0 as the sessionsetup is still
synchronous there, but Volker PLEASE CHECK !
Jeremy.
-----------------------------------------------------------------------
Summary of changes:
source3/libsmb/clistr.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
Changeset truncated at 500 lines:
diff --git a/source3/libsmb/clistr.c b/source3/libsmb/clistr.c
index 1f296eb..4e49091 100644
--- a/source3/libsmb/clistr.c
+++ b/source3/libsmb/clistr.c
@@ -34,12 +34,12 @@ size_t clistr_push_fn(const char *function,
DEBUG(0, ("Pushing string of 'unlimited' length into non-SMB buffer!\n"));
return push_string_base(function, line,
cli->outbuf,
- SVAL(cli->outbuf, smb_flg2),
+ (uint16_t)(cli_ucs2(cli) ? FLAGS2_UNICODE_STRINGS : 0),
dest, src, -1, flags);
}
return push_string_base(function, line,
cli->outbuf,
- SVAL(cli->outbuf, smb_flg2),
+ (uint16_t)(cli_ucs2(cli) ? FLAGS2_UNICODE_STRINGS : 0),
dest, src, cli->bufsize - buf_used,
flags);
}
@@ -47,7 +47,7 @@ size_t clistr_push_fn(const char *function,
/* 'normal' push into size-specified buffer */
return push_string_base(function, line,
cli->outbuf,
- SVAL(cli->outbuf, smb_flg2),
+ (uint16_t)(cli_ucs2(cli) ? FLAGS2_UNICODE_STRINGS : 0),
dest, src, dest_len, flags);
}
--
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