void
xmpp_init_parsers(void)
{
tvbparse_wanted_t *want_name;
tvbparse_wanted_t *want_stream_end;
want_name = tvbparse_chars(2,1,0,"abcdefghijklmnopqrstuvwxyz.-_ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789",NULL,NULL,NULL);
want_stream_end_with_ns = tvbparse_set_seq(3, NULL, NULL, NULL,
want_name,
tvbparse_char(4, ":", NULL, NULL, NULL),
want_name,
NULL);
want_stream_end = tvbparse_set_oneof(5, NULL, NULL, NULL,
want_stream_end_with_ns,
want_name,
NULL);
want_ignore = tvbparse_chars(1,1,0," \t\r\n",NULL,NULL,NULL);
want_stream_end_tag = tvbparse_set_seq(6, NULL, NULL, NULL,
tvbparse_string(-1,"</",NULL,NULL,NULL),
want_stream_end,
tvbparse_char(-1,">",NULL,NULL,NULL),
NULL);
}
/*
* Initialize tvb-parser, which is used to dissect data part of NTP control
* messages
*
* Here some constants are defined, which describes character groups used for
* various purposes. These groups are then used to configure the two global
* variables "want_ignore" and "want" that we use for dissection
*/
static void
init_parser(void)
{
/* specify what counts as character */
tvbparse_wanted_t* want_identifier = tvbparse_chars(-1, 1, 0,
"abcdefghijklmnopqrstuvwxyz-_ABCDEFGHIJKLMNOPQRSTUVWXYZ.0123456789", NULL, NULL, NULL);
/* this is the equal sign used in assignments */
tvbparse_wanted_t* want_equalsign = tvbparse_chars(-1, 1, 0, "=", NULL, NULL, NULL);
/* possible characters allowed for values */
tvbparse_wanted_t* want_value = tvbparse_set_oneof(0, NULL, NULL, NULL,
tvbparse_quoted(-1, NULL, NULL, tvbparse_shrink_token_cb, '\"', '\\'),
tvbparse_quoted(-1, NULL, NULL, tvbparse_shrink_token_cb, '\'', '\\'),
tvbparse_chars(-1, 1, 0, "abcdefghijklmnopqrstuvwxyz-_ABCDEFGHIJKLMNOPQRSTUVWXYZ.0123456789 ", NULL, NULL, NULL),
NULL);
/* the following specifies an assignment of the form identifier=value */
tvbparse_wanted_t* want_assignment = tvbparse_set_seq(-1, NULL, NULL, NULL,
want_identifier,
want_equalsign,
want_value,
NULL);
/* we ignore white space characters */
want_ignore = tvbparse_chars(-1, 1, 0, ", \t\r\n", NULL, NULL, NULL);
/* data part of control messages consists of either identifiers or assignments */
want = tvbparse_set_oneof(-1, NULL, NULL, NULL,
want_assignment,
want_identifier,
NULL);
}
static void init_gdb_parser(void) {
tvbparse_wanted_t *want_ack;
tvbparse_wanted_t *want_start;
tvbparse_wanted_t *want_payload;
tvbparse_wanted_t *want_end;
tvbparse_wanted_t *want_chksum;
want_ack = tvbparse_chars(-1, 1, 1, "+-",
GUINT_TO_POINTER(GDB_TOK_ACK), NULL, dissect_gdb_token);
want_start = tvbparse_chars(-1, 1, 1, "$",
GUINT_TO_POINTER(GDB_TOK_START), NULL, dissect_gdb_token);
want_payload = tvbparse_not_chars(-1, 1, 0, "$#",
GUINT_TO_POINTER(GDB_TOK_PAYLOAD), NULL, dissect_gdb_token);
want_end = tvbparse_chars(-1, 1, 1, "#",
GUINT_TO_POINTER(GDB_TOK_END), NULL, dissect_gdb_token);
want_chksum = tvbparse_chars(-1, 2, 2, "0123456789abcdefABCDEF",
GUINT_TO_POINTER(GDB_TOK_CHKSUM), NULL, dissect_gdb_token);
want = tvbparse_set_seq(-1, NULL, NULL, NULL,
tvbparse_some(-1, 0, 1, NULL, NULL, NULL, want_ack),
want_start, want_payload, want_end, want_chksum, NULL);
}