diff options
Diffstat (limited to 'sldns/wire2str.h')
| -rw-r--r-- | sldns/wire2str.h | 29 |
1 files changed, 22 insertions, 7 deletions
diff --git a/sldns/wire2str.h b/sldns/wire2str.h index a64f5807269c..0167fe7c1e2d 100644 --- a/sldns/wire2str.h +++ b/sldns/wire2str.h @@ -156,10 +156,11 @@ int sldns_wire2str_pkt_scan(uint8_t** data, size_t* data_len, char** str, * @param str_len: length of string buffer. * @param pkt: packet for decompression, if NULL no decompression. * @param pktlen: length of packet buffer. + * @param comprloop: if pkt, bool detects compression loops. * @return number of characters (except null) needed to print. */ int sldns_wire2str_rr_scan(uint8_t** data, size_t* data_len, char** str, - size_t* str_len, uint8_t* pkt, size_t pktlen); + size_t* str_len, uint8_t* pkt, size_t pktlen, int* comprloop); /** * Scan wireformat question rr to string, with user buffers. @@ -170,10 +171,11 @@ int sldns_wire2str_rr_scan(uint8_t** data, size_t* data_len, char** str, * @param str_len: length of string buffer. * @param pkt: packet for decompression, if NULL no decompression. * @param pktlen: length of packet buffer. + * @param comprloop: if pkt, bool detects compression loops. * @return number of characters (except null) needed to print. */ int sldns_wire2str_rrquestion_scan(uint8_t** data, size_t* data_len, char** str, - size_t* str_len, uint8_t* pkt, size_t pktlen); + size_t* str_len, uint8_t* pkt, size_t pktlen, int* comprloop); /** * Scan wireformat RR to string in unknown RR format, with user buffers. @@ -184,10 +186,11 @@ int sldns_wire2str_rrquestion_scan(uint8_t** data, size_t* data_len, char** str, * @param str_len: length of string buffer. * @param pkt: packet for decompression, if NULL no decompression. * @param pktlen: length of packet buffer. + * @param comprloop: if pkt, bool detects compression loops. * @return number of characters (except null) needed to print. */ int sldns_wire2str_rr_unknown_scan(uint8_t** data, size_t* data_len, char** str, - size_t* str_len, uint8_t* pkt, size_t pktlen); + size_t* str_len, uint8_t* pkt, size_t pktlen, int* comprloop); /** * Print to string the RR-information comment in default format, @@ -228,10 +231,12 @@ int sldns_wire2str_header_scan(uint8_t** data, size_t* data_len, char** str, * @param rrtype: RR type of Rdata, host format. * @param pkt: packet for decompression, if NULL no decompression. * @param pktlen: length of packet buffer. + * @param comprloop: if pkt, bool detects compression loops. * @return number of characters (except null) needed to print. */ int sldns_wire2str_rdata_scan(uint8_t** data, size_t* data_len, char** str, - size_t* str_len, uint16_t rrtype, uint8_t* pkt, size_t pktlen); + size_t* str_len, uint16_t rrtype, uint8_t* pkt, size_t pktlen, + int* comprloop); /** * Scan wireformat rdata to string in unknown format, with user buffers. @@ -254,10 +259,17 @@ int sldns_wire2str_rdata_unknown_scan(uint8_t** data, size_t* data_len, * @param str_len: length of string buffer. * @param pkt: packet for decompression, if NULL no decompression. * @param pktlen: length of packet buffer. + * @param comprloop: inout bool, that is set true if compression loop failure + * happens. Pass in 0, if passsed in as true, a lower bound is set + * on compression loops to stop arbitrary long packet parse times. + * This is meant so you can set it to 0 at the start of a list of dnames, + * and then scan all of them in sequence, if a loop happens, it becomes + * true and then it becomes more strict for the next dnames in the list. + * You can leave it at NULL if there is no pkt (pkt is NULL too). * @return number of characters (except null) needed to print. */ int sldns_wire2str_dname_scan(uint8_t** data, size_t* data_len, char** str, - size_t* str_len, uint8_t* pkt, size_t pktlen); + size_t* str_len, uint8_t* pkt, size_t pktlen, int* comprloop); /** * Scan wireformat rr type to string, with user buffers. @@ -492,11 +504,13 @@ int sldns_wire2str_dname_buf(uint8_t* dname, size_t dname_len, char* str, * @param rdftype: the type of the rdata field, enum sldns_rdf_type. * @param pkt: packet for decompression, if NULL no decompression. * @param pktlen: length of packet buffer. + * @param comprloop: if pkt, bool detects compression loops. * @return number of characters (except null) needed to print. * Can return -1 on failure. */ int sldns_wire2str_rdf_scan(uint8_t** data, size_t* data_len, char** str, - size_t* str_len, int rdftype, uint8_t* pkt, size_t pktlen); + size_t* str_len, int rdftype, uint8_t* pkt, size_t pktlen, + int* comprloop); /** * Scan wireformat int8 field to string, with user buffers. @@ -793,11 +807,12 @@ int sldns_wire2str_atma_scan(uint8_t** data, size_t* data_len, char** str, * @param str_len: length of string buffer. * @param pkt: packet for decompression, if NULL no decompression. * @param pktlen: length of packet buffer. + * @param comprloop: if pkt, bool detects compression loops. * @return number of characters (except null) needed to print. * Can return -1 on failure. */ int sldns_wire2str_ipseckey_scan(uint8_t** data, size_t* data_len, char** str, - size_t* str_len, uint8_t* pkt, size_t pktlen); + size_t* str_len, uint8_t* pkt, size_t pktlen, int* comprloop); /** * Scan wireformat HIP (algo, HIT, pubkey) field to string, with user buffers. |