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Diffstat (limited to 'programs/lwdnsq/lwdnsq.h')
| -rw-r--r-- | programs/lwdnsq/lwdnsq.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/programs/lwdnsq/lwdnsq.h b/programs/lwdnsq/lwdnsq.h new file mode 100644 index 000000000..109b39507 --- /dev/null +++ b/programs/lwdnsq/lwdnsq.h @@ -0,0 +1,121 @@ +/* + * DNS KEY lookup global definitions + * Copyright (C) 2002 Michael Richardson <mcr@freeswan.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#ifndef POLLIN +#include <poll.h> +#endif + +#include "freeswan.h" + +/* + * a base-64 encoded 2192 bit key takes: + * 2192/8 * 4/3 = 365 bytes. + * + * a base-64 encoded 16384 bit key takes: + * 16384/8*4/3 = 2730 bytes. + * + * so, we pick 4096 bytes as the maximum. + * + * Note that TXT records may have an introducer (X-IPsec) and an ID which + * is either an IP address or @FQDN that preceeds the base64 encoded key. + * + */ + +enum dkl_state { + dkl_start, /* no work yet none - initial state */ + dkl_first, /* sent first DNS request. */ + dkl_cname, /* sent request for CNAME record */ + dkl_second, /* sent request for thing CNAME pointed to */ + dkl_done /* done */ +}; + +typedef struct dnskey_lookup dnskey_lookup; + +struct dnskey_lookup { + struct lwres_async_state las; + dnskey_lookup *next; + char *tracking_id; + enum dkl_state step; + /* lwres_context_t *ctx; */ + char *wantedtype_name; + dns_rdatatype_t wantedtype; + char *fqdn; + int cname_count; + int last_cname_used; + dns_name_t last_cname; + int retry_count; +}; + +typedef struct dnskey_glob { + int debug; + int prompt; + int concurrent; + int done; + int regress; /* if 1, then we are doing regression testing */ + struct pollfd l_fds[5]; /* array of input sources */ + int l_nfds; /* number of relevant entries */ + int cmdloc; + unsigned char cmdbuf[LWDNSQ_CMDBUF_LEN]; + FILE *cmdproto_out; + dnskey_lookup *dns_outstanding; + int dns_inflight; + lwres_context_t *lwctx; + isc_mem_t *iscmem; + isc_buffer_t *iscbuf; +} dnskey_glob; + +/* in cmds.c */ +extern void lookup_key(dnskey_glob *gs,int, char **); +extern void lookup_key4(dnskey_glob *gs,int, char **); +extern void lookup_key6(dnskey_glob *gs,int, char **); +extern void lookup_txt(dnskey_glob *gs,int, char **); +extern void lookup_txt4(dnskey_glob *gs,int, char **); +extern void lookup_txt6(dnskey_glob *gs,int, char **); +extern void lookup_ipseckey(dnskey_glob *gs,int, char **); +extern void lookup_ipseckey4(dnskey_glob *gs,int, char **); +extern void lookup_ipseckey6(dnskey_glob *gs,int, char **); +extern void lookup_oe4(dnskey_glob *gs,int, char **); +extern void lookup_oe6(dnskey_glob *gs,int, char **); +extern void lookup_a(dnskey_glob *gs,int, char **); +extern void lookup_aaaa(dnskey_glob *gs,int, char **); +extern void output_transaction_line(dnskey_glob *gs, + char *id, + int ttl, + char *cmd, + char *data); +extern void output_transaction_line_limited(dnskey_glob *gs, + char *id, + int ttl, + char *cmd, + int max, + char *data); + + +/* lookup code */ +extern void process_dns_reply(dnskey_glob *gs); +extern void lookup_thing(dnskey_glob *gs, + dns_rdatatype_t wantedtype, + char *wantedtype_name, + char *id, + char *fqdn); + +/* + * + * Local variables: + * c-file-style: "linux" + * c-basic-offset: 2 + * End: + * + */ |