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| author | Michael Adam <obnox@samba.org> | 2012-06-06 15:12:08 +0200 |
|---|---|---|
| committer | Michael Adam <obnox@samba.org> | 2012-06-06 19:37:13 +0200 |
| commit | aa3a7de3687ac78ae1ed3fa395d8c4707a24b774 (patch) | |
| tree | e8b94cee107a3daa54797040c0ad1da9c1a5e60a /source3 | |
| parent | 82a9d23186d6729f3a3b24900310beb7090b0b2c (diff) | |
| download | samba-aa3a7de3687ac78ae1ed3fa395d8c4707a24b774.tar.gz samba-aa3a7de3687ac78ae1ed3fa395d8c4707a24b774.tar.bz2 samba-aa3a7de3687ac78ae1ed3fa395d8c4707a24b774.zip | |
s3:connections: add a CNUM_OFFSET for mapping between cnum and the bitmap index
This moves the start of the range of valid cnum values up from 0 to CNUM_OFFSET
(currently 1), so that in a later step we can use 0 as invalid cnum value
instead of the current -1. This will allow us to change the type of cnum to
uint32_t from a mix of int and unsigned.
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Diffstat (limited to 'source3')
| -rw-r--r-- | source3/include/smb.h | 2 | ||||
| -rw-r--r-- | source3/smbd/conn.c | 14 |
2 files changed, 12 insertions, 4 deletions
diff --git a/source3/include/smb.h b/source3/include/smb.h index 732a5308ff..5ee2b1fb44 100644 --- a/source3/include/smb.h +++ b/source3/include/smb.h @@ -672,6 +672,8 @@ enum acl_compatibility {ACL_COMPAT_AUTO, ACL_COMPAT_WINNT, ACL_COMPAT_WIN2K}; #define UID_FIELD_INVALID 0 #define VUID_OFFSET 100 /* Amount to bias returned vuid numbers */ +#define CNUM_OFFSET 1 /* shift for bitmap index */ + /* * Size of buffer to use when moving files across filesystems. */ diff --git a/source3/smbd/conn.c b/source3/smbd/conn.c index 1344bac7a8..53d8553122 100644 --- a/source3/smbd/conn.c +++ b/source3/smbd/conn.c @@ -98,6 +98,7 @@ connection_struct *conn_new(struct smbd_server_connection *sconn) { connection_struct *conn; int i; + uint32_t cnum; int find_offset = 1; if (sconn->using_smb2) { @@ -156,7 +157,8 @@ find_again: * which is limited to 16 bits (we skip 0xffff which is the * NULL TID). */ - if (i > 65534) { + cnum = i + CNUM_OFFSET; + if (cnum >= 0xFFFF) { DEBUG(0, ("Maximum connection limit reached\n")); return NULL; } @@ -168,7 +170,7 @@ find_again: return NULL; } conn->sconn = sconn; - conn->cnum = i; + conn->cnum = cnum; conn->force_group_gid = (gid_t)-1; bitmap_set(sconn->smb1.tcons.bmap, i); @@ -293,12 +295,16 @@ void conn_free(connection_struct *conn) } if (!conn->sconn->using_smb2 && - conn->sconn->smb1.tcons.bmap != NULL) { + conn->sconn->smb1.tcons.bmap != NULL && + conn->cnum >= CNUM_OFFSET && + conn->cnum < 0xFFFF) + { + int i = conn->cnum - CNUM_OFFSET; /* * Can be NULL for fake connections created by * create_conn_struct() */ - bitmap_clear(conn->sconn->smb1.tcons.bmap, conn->cnum); + bitmap_clear(conn->sconn->smb1.tcons.bmap, i); } DLIST_REMOVE(conn->sconn->connections, conn); |