Pi-Hole/dnsmasq
1
0
Fork 0
mirror of https://github.com/pi-hole/dnsmasq.git synced 2025-12-19 10:18:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

Cache SOAs and return them with cached NXDOMAIN/NODATA replies.

Browse Source 
Now we can cache arbirary RRs, give more correct answers when
replying negative answers from cache.

To implement this needed the DNS-doctor code to be untangled from
find_soa(), so it should be under suspicion for any regresssions
in that department.
This commit is contained in:
Simon Kelley
2024-02-01 23:37:11 +00:00
parent db07664f2a
commit 12ddb2a4b9
5 changed files with 820 additions and 732 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
src/dnsmasq.h
View File

@@ -341,7 +341,7 @@ union all_addr {
in the cache flags. */
struct datablock {
unsigned short rrtype;
unsigned char datalen;
unsigned char datalen; /* also length of SOA in negative records. */
char data[];
} rrdata;
};
@@ -1233,10 +1233,7 @@ extern struct daemon {
char *packet; /* packet buffer */
int packet_buff_sz; /* size of above */
char *namebuff; /* MAXDNAME size buffer */
#if (defined(HAVE_CONNTRACK) && defined(HAVE_UBUS)) || defined(HAVE_DNSSEC)
/* CONNTRACK UBUS code uses this buffer, as well as DNSSEC code. */
char *workspacename;
#endif
#ifdef HAVE_DNSSEC
char *keyname; /* MAXDNAME size buffer */
unsigned long *rr_status; /* ceiling in TTL from DNSSEC or zero for insecure */
@@ -1376,6 +1373,7 @@ int is_name_synthetic(int flags, char *name, union all_addr *addr);
int is_rev_synth(int flag, union all_addr *addr, char *name);
/* rfc1035.c */
int do_doctor(struct dns_header *header, size_t qlen);
int extract_name(struct dns_header *header, size_t plen, unsigned char **pp,
char *name, int isExtract, int extrabytes);
unsigned char *skip_name(unsigned char *ansp, struct dns_header *header, size_t plen, int extrabytes);
@@ -1386,7 +1384,7 @@ unsigned int extract_request(struct dns_header *header, size_t qlen,
void setup_reply(struct dns_header *header, unsigned int flags, int ede);
int extract_addresses(struct dns_header *header, size_t qlen, char *name,
time_t now, struct ipsets *ipsets, struct ipsets *nftsets, int is_sign,
int check_rebind, int no_cache_dnssec, int secure, int *doctored);
int check_rebind, int no_cache_dnssec, int secure);
#if defined(HAVE_CONNTRACK) && defined(HAVE_UBUS)
void report_addresses(struct dns_header *header, size_t len, u32 mark);
#endif