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Fix root-path parsing.

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This commit is contained in:
Michael Brown 2007-07-09 00:00:34 +01:00
parent cc80750694
commit ef9fd938d0
1 changed files with 35 additions and 36 deletions
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71
src/net/tcp/iscsi.c
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@ -1360,6 +1360,10 @@ static int iscsi_parse_lun ( struct iscsi_session *iscsi,
} lun;
int i;
/* Empty LUN; assume LUN 0 */
if ( ! *lun_string )
return 0;
for ( i = 0 ; i < 4 ; i++ ) {
lun.u16[i] = strtoul ( p, &p, 16 );
if ( *p != '-' )
@ -1382,49 +1386,44 @@ static int iscsi_parse_lun ( struct iscsi_session *iscsi,
*/
static int iscsi_parse_root_path ( struct iscsi_session *iscsi,
const char *root_path ) {
const char *p = root_path;
char *fragment;
size_t len;
enum iscsi_root_path_component i;
char rp_copy[ strlen ( root_path ) + 1 ];
char *rp_comp[NUM_RP_COMPONENTS];
char *rp = rp_copy;
int i = 0;
int rc;
for ( i = 0 ; i < NUM_RP_COMPONENTS ; i++ ) {
len = strcspn ( p, ":" );
fragment = strndup ( p, len );
if ( ! fragment ) {
DBGC ( iscsi, "iSCSI %p could not duplicate root "
"path component at %s\n", iscsi, p );
return -ENOMEM;
}
switch ( i ) {
case RP_SERVERNAME:
iscsi->target_address = fragment;
/* Split root path into component parts */
strcpy ( rp_copy, root_path );
while ( 1 ) {
rp_comp[i++] = rp;
if ( i == NUM_RP_COMPONENTS )
break;
case RP_PORT:
iscsi->target_port = strtoul ( fragment, NULL, 10 );
if ( ! iscsi->target_port )
iscsi->target_port = ISCSI_PORT;
free ( fragment );
break;
case RP_LUN:
rc = iscsi_parse_lun ( iscsi, fragment );
free ( fragment );
if ( rc != 0 ) {
DBGC ( iscsi, "iSCSI %p invalid LUN %s\n",
iscsi, fragment );
return rc;
for ( ; *rp != ':' ; rp++ ) {
if ( ! *rp ) {
DBGC ( iscsi, "iSCSI %p root path \"%s\" "
"too short\n", iscsi, root_path );
return -EINVAL;
}
break;
case RP_TARGETNAME:
iscsi->target_iqn = fragment;
break;
default:
free ( fragment );
break;
}
p += len;
*(rp++) = '\0';
}
/* Use root path components to configure iSCSI session */
iscsi->target_address = strdup ( rp_comp[RP_SERVERNAME] );
if ( ! iscsi->target_address )
return -ENOMEM;
iscsi->target_port = strtoul ( rp_comp[RP_PORT], NULL, 10 );
if ( ! iscsi->target_port )
iscsi->target_port = ISCSI_PORT;
if ( ( rc = iscsi_parse_lun ( iscsi, rp_comp[RP_LUN] ) ) != 0 ) {
DBGC ( iscsi, "iSCSI %p invalid LUN \"%s\"\n",
iscsi, rp_comp[RP_LUN] );
return rc;
}
iscsi->target_iqn = strdup ( rp_comp[RP_TARGETNAME] );
if ( ! iscsi->target_iqn )
return -ENOMEM;
return 0;
}