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/* $OpenBSD: extern.h,v 1.217 2024/04/21 19:27:44 claudio Exp $ */
/*
* Copyright (c) 2019 Kristaps Dzonsons <kristaps@bsd.lv>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef EXTERN_H
#define EXTERN_H
#include <sys/queue.h>
#include <sys/tree.h>
#include <sys/time.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
enum cert_as_type {
CERT_AS_ID, /* single identifier */
CERT_AS_INHERIT, /* inherit from issuer */
CERT_AS_RANGE, /* range of identifiers */
};
/*
* An AS identifier range.
* The maximum AS identifier is an unsigned 32 bit integer (RFC 6793).
*/
struct cert_as_range {
uint32_t min; /* minimum non-zero */
uint32_t max; /* maximum */
};
/*
* An autonomous system (AS) object.
* AS identifiers are unsigned 32 bit integers (RFC 6793).
*/
struct cert_as {
enum cert_as_type type; /* type of AS specification */
union {
uint32_t id; /* singular identifier */
struct cert_as_range range; /* range */
};
};
/*
* AFI values are assigned by IANA.
* In rpki-client, we only accept the IPV4 and IPV6 AFI values.
*/
enum afi {
AFI_IPV4 = 1,
AFI_IPV6 = 2
};
/*
* An IP address as parsed from RFC 3779, section 2.2.3.8.
* This is either in a certificate or an ROA.
* It may either be IPv4 or IPv6.
*/
struct ip_addr {
unsigned char addr[16]; /* binary address prefix */
unsigned char prefixlen; /* number of valid bits in address */
};
/*
* An IP address (IPv4 or IPv6) range starting at the minimum and making
* its way to the maximum.
*/
struct ip_addr_range {
struct ip_addr min; /* minimum ip */
struct ip_addr max; /* maximum ip */
};
enum cert_ip_type {
CERT_IP_ADDR, /* IP address range w/shared prefix */
CERT_IP_INHERIT, /* inherited IP address */
CERT_IP_RANGE /* range of IP addresses */
};
/*
* A single IP address family (AFI, address or range) as defined in RFC
* 3779, 2.2.3.2.
* The RFC specifies multiple address or ranges per AFI; this structure
* encodes both the AFI and a single address or range.
*/
struct cert_ip {
enum afi afi; /* AFI value */
enum cert_ip_type type; /* type of IP entry */
unsigned char min[16]; /* full range minimum */
unsigned char max[16]; /* full range maximum */
union {
struct ip_addr ip; /* singular address */
struct ip_addr_range range; /* range */
};
};
enum cert_purpose {
CERT_PURPOSE_INVALID,
CERT_PURPOSE_CA,
CERT_PURPOSE_BGPSEC_ROUTER
};
/*
* Parsed components of a validated X509 certificate stipulated by RFC
* 6847 and further (within) by RFC 3779.
* All AS numbers are guaranteed to be non-overlapping and properly
* inheriting.
*/
struct cert {
struct cert_ip *ips; /* list of IP address ranges */
size_t ipsz; /* length of "ips" */
struct cert_as *as; /* list of AS numbers and ranges */
size_t asz; /* length of "asz" */
int talid; /* cert is covered by which TAL */
unsigned int repoid; /* repository of this cert file */
char *repo; /* CA repository (rsync:// uri) */
char *mft; /* manifest (rsync:// uri) */
char *notify; /* RRDP notify (https:// uri) */
char *crl; /* CRL location (rsync:// or NULL) */
char *aia; /* AIA (or NULL, for trust anchor) */
char *aki; /* AKI (or NULL, for trust anchor) */
char *ski; /* SKI */
enum cert_purpose purpose; /* BGPSec or CA */
char *pubkey; /* Subject Public Key Info */
X509 *x509; /* the cert */
time_t notbefore; /* cert's Not Before */
time_t notafter; /* cert's Not After */
time_t expires; /* when the signature path expires */
};
/*
* The TAL file conforms to RFC 7730.
* It is the top-level structure of RPKI and defines where we can find
* certificates for TAs (trust anchors).
* It also includes the public key for verifying those trust anchor
* certificates.
*/
struct tal {
char **uri; /* well-formed rsync URIs */
size_t urisz; /* number of URIs */
unsigned char *pkey; /* DER-encoded public key */
size_t pkeysz; /* length of pkey */
char *descr; /* basename of tal file */
int id; /* ID of this TAL */
};
/*
* Resource types specified by the RPKI profiles.
* There might be others we don't consider.
*/
enum rtype {
RTYPE_INVALID,
RTYPE_TAL,
RTYPE_MFT,
RTYPE_ROA,
RTYPE_CER,
RTYPE_CRL,
RTYPE_GBR,
RTYPE_REPO,
RTYPE_FILE,
RTYPE_RSC,
RTYPE_ASPA,
RTYPE_TAK,
RTYPE_GEOFEED,
RTYPE_SPL,
};
enum location {
DIR_UNKNOWN,
DIR_TEMP,
DIR_VALID,
};
/*
* Files specified in an MFT have their bodies hashed with SHA256.
*/
struct mftfile {
char *file; /* filename (CER/ROA/CRL, no path) */
enum rtype type; /* file type as determined by extension */
enum location location; /* temporary or valid directory */
unsigned char hash[SHA256_DIGEST_LENGTH]; /* sha256 of body */
};
/*
* A manifest, RFC 6486.
* This consists of a bunch of files found in the same directory as the
* manifest file.
*/
struct mft {
char *path; /* relative path to directory of the MFT */
struct mftfile *files; /* file and hash */
char *seqnum; /* manifestNumber */
char *aia; /* AIA */
char *aki; /* AKI */
char *sia; /* SIA signedObject */
char *ski; /* SKI */
char *crl; /* CRL file name */
unsigned char mfthash[SHA256_DIGEST_LENGTH];
unsigned char crlhash[SHA256_DIGEST_LENGTH];
time_t signtime; /* CMS signing-time attribute */
time_t thisupdate; /* from the eContent */
time_t nextupdate; /* from the eContent */
time_t expires; /* when the signature path expires */
size_t filesz; /* number of filenames */
unsigned int repoid;
int talid;
};
/*
* An IP address prefix for a given ROA.
* This encodes the maximum length, AFI (v6/v4), and address.
* FIXME: are the min/max necessary or just used in one place?
*/
struct roa_ip {
enum afi afi; /* AFI value */
struct ip_addr addr; /* the address prefix itself */
unsigned char min[16]; /* full range minimum */
unsigned char max[16]; /* full range maximum */
unsigned char maxlength; /* max length or zero */
};
/*
* An ROA, RFC 6482.
* This consists of the concerned ASID and its IP prefixes.
*/
struct roa {
uint32_t asid; /* asID of ROA (if 0, RFC 6483 sec 4) */
struct roa_ip *ips; /* IP prefixes */
size_t ipsz; /* number of IP prefixes */
int talid; /* ROAs are covered by which TAL */
int valid; /* validated resources */
char *aia; /* AIA */
char *aki; /* AKI */
char *sia; /* SIA signedObject */
char *ski; /* SKI */
time_t signtime; /* CMS signing-time attribute */
time_t notbefore; /* EE cert's Not Before */
time_t notafter; /* EE cert's Not After */
time_t expires; /* when the signature path expires */
};
struct rscfile {
char *filename; /* an optional filename on the checklist */
unsigned char hash[SHA256_DIGEST_LENGTH]; /* the digest */
};
/*
* A Signed Checklist (RSC)
*/
struct rsc {
int talid; /* RSC covered by what TAL */
int valid; /* eContent resources covered by EE's 3779? */
struct cert_ip *ips; /* IP prefixes */
size_t ipsz; /* number of IP prefixes */
struct cert_as *as; /* AS resources */
size_t asz; /* number of AS resources */
struct rscfile *files; /* FileAndHashes in the RSC */
size_t filesz; /* number of FileAndHashes */
char *aia; /* AIA */
char *aki; /* AKI */
char *ski; /* SKI */
time_t signtime; /* CMS signing-time attribute */
time_t notbefore; /* EE cert's Not Before */
time_t notafter; /* Not After of the RSC EE */
time_t expires; /* when the signature path expires */
};
/*
* An IP address prefix in a given SignedPrefixList.
*/
struct spl_pfx {
enum afi afi;
struct ip_addr prefix;
};
/*
* An SPL, draft-ietf-sidrops-rpki-prefixlist
* This consists of an ASID and its IP prefixes.
*/
struct spl {
uint32_t asid;
struct spl_pfx *pfxs;
size_t pfxsz;
int talid;
char *aia;
char *aki;
char *sia;
char *ski;
time_t signtime; /* CMS signing-time attribute */
time_t notbefore; /* EE cert's Not Before */
time_t notafter; /* EE cert's Not After */
time_t expires; /* when the certification path expires */
int valid;
};
/*
* Datastructure representing the TAKey sequence inside TAKs.
*/
struct takey {
char **comments; /* Comments */
size_t commentsz; /* number of Comments */
char **uris; /* CertificateURI */
size_t urisz; /* number of CertificateURIs */
unsigned char *pubkey; /* DER encoded SubjectPublicKeyInfo */
size_t pubkeysz;
char *ski; /* hex encoded SubjectKeyIdentifier of pubkey */
};
/*
* A Signed TAL (TAK) draft-ietf-sidrops-signed-tal-12
*/
struct tak {
int talid; /* TAK covered by what TAL */
struct takey *current;
struct takey *predecessor;
struct takey *successor;
char *aia; /* AIA */
char *aki; /* AKI */
char *sia; /* SIA signed Object */
char *ski; /* SKI */
time_t signtime; /* CMS signing-time attribute */
time_t notbefore; /* EE cert's Not Before */
time_t notafter; /* Not After of the TAK EE */
time_t expires; /* when the signature path expires */
};
/*
* A single geofeed record
*/
struct geoip {
struct cert_ip *ip;
char *loc;
};
/*
* A geofeed file
*/
struct geofeed {
struct geoip *geoips; /* Prefix + location entry in the CSV */
size_t geoipsz; /* number of IPs */
char *aia; /* AIA */
char *aki; /* AKI */
char *ski; /* SKI */
time_t signtime; /* CMS signing-time attribute */
time_t notbefore; /* EE cert's Not Before */
time_t notafter; /* Not After of the Geofeed EE */
time_t expires; /* when the signature path expires */
int valid; /* all resources covered */
};
/*
* A single Ghostbuster record
*/
struct gbr {
char *vcard;
char *aia; /* AIA */
char *aki; /* AKI */
char *sia; /* SIA signedObject */
char *ski; /* SKI */
time_t signtime; /* CMS signing-time attribute */
time_t notbefore; /* EE cert's Not Before */
time_t notafter; /* Not After of the GBR EE */
time_t expires; /* when the signature path expires */
int talid; /* TAL the GBR is chained up to */
};
/*
* A single ASPA record
*/
struct aspa {
int valid; /* contained in issuer auth */
int talid; /* TAL the ASPA is chained up to */
char *aia; /* AIA */
char *aki; /* AKI */
char *sia; /* SIA signedObject */
char *ski; /* SKI */
uint32_t custasid; /* the customerASID */
uint32_t *providers; /* the providers */
size_t providersz; /* number of providers */
time_t signtime; /* CMS signing-time attribute */
time_t notbefore; /* EE cert's Not Before */
time_t notafter; /* notAfter of the ASPA EE cert */
time_t expires; /* when the signature path expires */
};
/*
* A Validated ASPA Payload (VAP) tree element.
* To ease transformation, this struct mimics ASPA RTR PDU structure.
*/
struct vap {
RB_ENTRY(vap) entry;
uint32_t custasid;
uint32_t *providers;
size_t providersz;
time_t expires;
int talid;
unsigned int repoid;
int overflowed;
};
/*
* Tree of VAPs sorted by afi, custasid, and provideras.
*/
RB_HEAD(vap_tree, vap);
RB_PROTOTYPE(vap_tree, vap, entry, vapcmp);
/*
* A single VRP element (including ASID)
*/
struct vrp {
RB_ENTRY(vrp) entry;
struct ip_addr addr;
uint32_t asid;
enum afi afi;
unsigned char maxlength;
time_t expires; /* transitive expiry moment */
int talid; /* covered by which TAL */
unsigned int repoid;
};
/*
* Tree of VRP sorted by afi, addr, maxlength and asid
*/
RB_HEAD(vrp_tree, vrp);
RB_PROTOTYPE(vrp_tree, vrp, entry, vrpcmp);
/*
* Validated SignedPrefixList Payload
* A single VSP element (including ASID)
* draft-ietf-sidrops-rpki-prefixlist
*/
struct vsp {
RB_ENTRY(vsp) entry;
uint32_t asid;
struct spl_pfx *prefixes;
size_t prefixesz;
time_t expires;
int talid;
unsigned int repoid;
};
/*
* Tree of VSP sorted by asid
*/
RB_HEAD(vsp_tree, vsp);
RB_PROTOTYPE(vsp_tree, vsp, entry, vspcmp);
/*
* A single BGPsec Router Key (including ASID)
*/
struct brk {
RB_ENTRY(brk) entry;
uint32_t asid;
int talid; /* covered by which TAL */
char *ski; /* Subject Key Identifier */
char *pubkey; /* Subject Public Key Info */
time_t expires; /* transitive expiry moment */
};
/*
* Tree of BRK sorted by asid
*/
RB_HEAD(brk_tree, brk);
RB_PROTOTYPE(brk_tree, brk, entry, brkcmp);
/*
* A single CRL
*/
struct crl {
RB_ENTRY(crl) entry;
char *aki;
char *mftpath;
char *number;
X509_CRL *x509_crl;
time_t thisupdate; /* do not use before */
time_t nextupdate; /* do not use after */
};
/*
* Tree of CRLs sorted by uri
*/
RB_HEAD(crl_tree, crl);
/*
* An authentication tuple.
* This specifies a public key and a subject key identifier used to
* verify children nodes in the tree of entities.
*/
struct auth {
RB_ENTRY(auth) entry;
struct cert *cert; /* owner information */
struct auth *issuer; /* pointer to issuer or NULL for TA cert */
int any_inherits;
};
/*
* Tree of auth sorted by ski
*/
RB_HEAD(auth_tree, auth);
struct auth *auth_find(struct auth_tree *, const char *);
struct auth *auth_insert(struct auth_tree *, struct cert *, struct auth *);
enum http_result {
HTTP_FAILED, /* anything else */
HTTP_OK, /* 200 OK */
HTTP_NOT_MOD, /* 304 Not Modified */
};
/*
* Message types for communication with RRDP process.
*/
enum rrdp_msg {
RRDP_START,
RRDP_SESSION,
RRDP_FILE,
RRDP_CLEAR,
RRDP_END,
RRDP_HTTP_REQ,
RRDP_HTTP_INI,
RRDP_HTTP_FIN,
RRDP_ABORT,
};
/* Maximum number of delta files per RRDP notification file. */
#define MAX_RRDP_DELTAS 300
/*
* RRDP session state, needed to pickup at the right spot on next run.
*/
struct rrdp_session {
char *last_mod;
char *session_id;
long long serial;
char *deltas[MAX_RRDP_DELTAS];
};
/*
* File types used in RRDP_FILE messages.
*/
enum publish_type {
PUB_ADD,
PUB_UPD,
PUB_DEL,
};
/*
* An entity (MFT, ROA, certificate, etc.) that needs to be downloaded
* and parsed.
*/
struct entity {
TAILQ_ENTRY(entity) entries;
char *path; /* path relative to repository */
char *file; /* filename or valid repo path */
char *mftaki; /* expected AKI (taken from Manifest) */
unsigned char *data; /* optional data blob */
size_t datasz; /* length of optional data blob */
unsigned int repoid; /* repository identifier */
int talid; /* tal identifier */
enum rtype type; /* type of entity (not RTYPE_EOF) */
enum location location; /* which directory the file lives in */
};
TAILQ_HEAD(entityq, entity);
enum stype {
STYPE_OK,
STYPE_FAIL,
STYPE_INVALID,
STYPE_BGPSEC,
STYPE_TOTAL,
STYPE_UNIQUE,
STYPE_DEC_UNIQUE,
STYPE_PROVIDERS,
STYPE_OVERFLOW,
};
struct repo;
struct filepath;
RB_HEAD(filepath_tree, filepath);
/*
* Statistics collected during run-time.
*/
struct repotalstats {
uint32_t certs; /* certificates */
uint32_t certs_fail; /* invalid certificate */
uint32_t mfts; /* total number of manifests */
uint32_t mfts_fail; /* failing syntactic parse */
uint32_t roas; /* route origin authorizations */
uint32_t roas_fail; /* failing syntactic parse */
uint32_t roas_invalid; /* invalid resources */
uint32_t aspas; /* ASPA objects */
uint32_t aspas_fail; /* ASPA objects failing syntactic parse */
uint32_t aspas_invalid; /* ASPAs with invalid customerASID */
uint32_t brks; /* number of BGPsec Router Key (BRK) certs */
uint32_t crls; /* revocation lists */
uint32_t gbrs; /* ghostbuster records */
uint32_t taks; /* signed TAL objects */
uint32_t vaps; /* total number of Validated ASPA Payloads */
uint32_t vaps_uniqs; /* total number of unique VAPs */
uint32_t vaps_pas; /* total number of providers */
uint32_t vaps_overflowed; /* VAPs with too many providers */
uint32_t vrps; /* total number of Validated ROA Payloads */
uint32_t vrps_uniqs; /* number of unique vrps */
uint32_t spls; /* signed prefix list */
uint32_t spls_fail; /* failing syntactic parse */
uint32_t spls_invalid; /* invalid spls */
uint32_t vsps; /* total number of Validated SPL Payloads */
uint32_t vsps_uniqs; /* number of unique vsps */
};
struct repostats {
uint32_t del_files; /* number of files removed in cleanup */
uint32_t extra_files; /* number of superfluous files */
uint32_t del_extra_files;/* number of removed extra files */
uint32_t del_dirs; /* number of dirs removed in cleanup */
uint32_t new_files; /* moved from DIR_TEMP to DIR_VALID */
struct timespec sync_time; /* time to sync repo */
};
struct stats {
uint32_t tals; /* total number of locators */
uint32_t repos; /* repositories */
uint32_t rsync_repos; /* synced rsync repositories */
uint32_t rsync_fails; /* failed rsync repositories */
uint32_t http_repos; /* synced http repositories */
uint32_t http_fails; /* failed http repositories */
uint32_t rrdp_repos; /* synced rrdp repositories */
uint32_t rrdp_fails; /* failed rrdp repositories */
uint32_t skiplistentries; /* number of skiplist entries */
struct repotalstats repo_tal_stats;
struct repostats repo_stats;
struct timespec elapsed_time;
struct timespec user_time;
struct timespec system_time;
};
struct ibuf;
struct msgbuf;
/* global variables */
extern int verbose;
extern int noop;
extern int filemode;
extern int excludeaspa;
extern int experimental;
extern const char *tals[];
extern const char *taldescs[];
extern unsigned int talrepocnt[];
extern struct repotalstats talstats[];
extern int talsz;
/* Routines for RPKI entities. */
void tal_buffer(struct ibuf *, const struct tal *);
void tal_free(struct tal *);
struct tal *tal_parse(const char *, char *, size_t);
struct tal *tal_read(struct ibuf *);
void cert_buffer(struct ibuf *, const struct cert *);
void cert_free(struct cert *);
void auth_tree_free(struct auth_tree *);
struct cert *cert_parse_ee_cert(const char *, int, X509 *);
struct cert *cert_parse_pre(const char *, const unsigned char *, size_t);
struct cert *cert_parse(const char *, struct cert *);
struct cert *ta_parse(const char *, struct cert *, const unsigned char *,
size_t);
struct cert *cert_read(struct ibuf *);
void cert_insert_brks(struct brk_tree *, struct cert *);
enum rtype rtype_from_file_extension(const char *);
void mft_buffer(struct ibuf *, const struct mft *);
void mft_free(struct mft *);
struct mft *mft_parse(X509 **, const char *, int, const unsigned char *,
size_t);
struct mft *mft_read(struct ibuf *);
int mft_compare_issued(const struct mft *, const struct mft *);
int mft_compare_seqnum(const struct mft *, const struct mft *);
void roa_buffer(struct ibuf *, const struct roa *);
void roa_free(struct roa *);
struct roa *roa_parse(X509 **, const char *, int, const unsigned char *,
size_t);
struct roa *roa_read(struct ibuf *);
void roa_insert_vrps(struct vrp_tree *, struct roa *,
struct repo *);
void spl_buffer(struct ibuf *, const struct spl *);
void spl_free(struct spl *);
struct spl *spl_parse(X509 **, const char *, int, const unsigned char *,
size_t);
struct spl *spl_read(struct ibuf *);
void spl_insert_vsps(struct vsp_tree *, struct spl *,
struct repo *);
void gbr_free(struct gbr *);
struct gbr *gbr_parse(X509 **, const char *, int, const unsigned char *,
size_t);
void geofeed_free(struct geofeed *);
struct geofeed *geofeed_parse(X509 **, const char *, int, char *, size_t);
void rsc_free(struct rsc *);
struct rsc *rsc_parse(X509 **, const char *, int, const unsigned char *,
size_t);
void takey_free(struct takey *);
void tak_free(struct tak *);
struct tak *tak_parse(X509 **, const char *, int, const unsigned char *,
size_t);
void aspa_buffer(struct ibuf *, const struct aspa *);
void aspa_free(struct aspa *);
void aspa_insert_vaps(char *, struct vap_tree *, struct aspa *,
struct repo *);
struct aspa *aspa_parse(X509 **, const char *, int, const unsigned char *,
size_t);
struct aspa *aspa_read(struct ibuf *);
/* crl.c */
struct crl *crl_parse(const char *, const unsigned char *, size_t);
struct crl *crl_get(struct crl_tree *, const struct auth *);
int crl_insert(struct crl_tree *, struct crl *);
void crl_free(struct crl *);
void crl_tree_free(struct crl_tree *);
/* Validation of our objects. */
struct auth *valid_ski_aki(const char *, struct auth_tree *,
const char *, const char *, const char *);
int valid_ta(const char *, struct auth_tree *,
const struct cert *);
int valid_cert(const char *, struct auth *, const struct cert *);
int valid_roa(const char *, struct cert *, struct roa *);
int valid_filehash(int, const char *, size_t);
int valid_hash(unsigned char *, size_t, const char *, size_t);
int valid_filename(const char *, size_t);
int valid_uri(const char *, size_t, const char *);
int valid_origin(const char *, const char *);
int valid_x509(char *, X509_STORE_CTX *, X509 *, struct auth *,
struct crl *, const char **);
int valid_rsc(const char *, struct cert *, struct rsc *);
int valid_econtent_version(const char *, const ASN1_INTEGER *,
uint64_t);
int valid_aspa(const char *, struct cert *, struct aspa *);
int valid_geofeed(const char *, struct cert *, struct geofeed *);
int valid_uuid(const char *);
int valid_ca_pkey(const char *, EVP_PKEY *);
int valid_spl(const char *, struct cert *, struct spl *);
/* Working with CMS. */
unsigned char *cms_parse_validate(X509 **, const char *,
const unsigned char *, size_t,
const ASN1_OBJECT *, size_t *, time_t *);
int cms_parse_validate_detached(X509 **, const char *,
const unsigned char *, size_t,
const ASN1_OBJECT *, BIO *, time_t *);
/* Work with RFC 3779 IP addresses, prefixes, ranges. */
int ip_addr_afi_parse(const char *, const ASN1_OCTET_STRING *,
enum afi *);
int ip_addr_parse(const ASN1_BIT_STRING *,
enum afi, const char *, struct ip_addr *);
void ip_addr_print(const struct ip_addr *, enum afi, char *,
size_t);
int ip_addr_check_overlap(const struct cert_ip *,
const char *, const struct cert_ip *, size_t, int);
int ip_addr_check_covered(enum afi, const unsigned char *,
const unsigned char *, const struct cert_ip *, size_t);
int ip_cert_compose_ranges(struct cert_ip *);
void ip_roa_compose_ranges(struct roa_ip *);
void ip_warn(const char *, const char *, const struct cert_ip *);
int sbgp_addr(const char *, struct cert_ip *, size_t *,
enum afi, const ASN1_BIT_STRING *);
int sbgp_addr_range(const char *, struct cert_ip *, size_t *,
enum afi, const IPAddressRange *);
int sbgp_parse_ipaddrblk(const char *, const IPAddrBlocks *,
struct cert_ip **, size_t *);
/* Work with RFC 3779 AS numbers, ranges. */
int as_id_parse(const ASN1_INTEGER *, uint32_t *);
int as_check_overlap(const struct cert_as *, const char *,
const struct cert_as *, size_t, int);
int as_check_covered(uint32_t, uint32_t,
const struct cert_as *, size_t);
void as_warn(const char *, const char *, const struct cert_as *);
int sbgp_as_id(const char *, struct cert_as *, size_t *,
const ASN1_INTEGER *);
int sbgp_as_range(const char *, struct cert_as *, size_t *,
const ASRange *);
int sbgp_parse_assysnum(const char *, const ASIdentifiers *,
struct cert_as **, size_t *);
/* Constraints-specific */
void constraints_load(void);
void constraints_unload(void);
void constraints_parse(void);
int constraints_validate(const char *, const struct cert *);
/* Parser-specific */
void entity_free(struct entity *);
void entity_read_req(struct ibuf *, struct entity *);
void entityq_flush(struct entityq *, struct repo *);
void proc_parser(int) __attribute__((noreturn));
void proc_filemode(int) __attribute__((noreturn));
/* Rsync-specific. */
char *rsync_base_uri(const char *);
void proc_rsync(char *, char *, int) __attribute__((noreturn));
/* HTTP and RRDP processes. */
void proc_http(char *, int) __attribute__((noreturn));
void proc_rrdp(int) __attribute__((noreturn));
/* Repository handling */
int filepath_add(struct filepath_tree *, char *, time_t);
void rrdp_clear(unsigned int);
void rrdp_session_save(unsigned int, struct rrdp_session *);
void rrdp_session_free(struct rrdp_session *);
void rrdp_session_buffer(struct ibuf *,
const struct rrdp_session *);
struct rrdp_session *rrdp_session_read(struct ibuf *);
int rrdp_handle_file(unsigned int, enum publish_type, char *,
char *, size_t, char *, size_t);
char *repo_basedir(const struct repo *, int);
unsigned int repo_id(const struct repo *);
const char *repo_uri(const struct repo *);
void repo_fetch_uris(const struct repo *, const char **,
const char **);
int repo_synced(const struct repo *);
const char *repo_proto(const struct repo *);
int repo_talid(const struct repo *);
struct repo *ta_lookup(int, struct tal *);
struct repo *repo_lookup(int, const char *, const char *);
struct repo *repo_byid(unsigned int);
int repo_queued(struct repo *, struct entity *);
void repo_cleanup(struct filepath_tree *, int);
int repo_check_timeout(int);
void repostats_new_files_inc(struct repo *, const char *);
void repo_stat_inc(struct repo *, int, enum rtype, enum stype);
void repo_tal_stats_collect(void (*)(const struct repo *,
const struct repotalstats *, void *), int, void *);
void repo_stats_collect(void (*)(const struct repo *,
const struct repostats *, void *), void *);
void repo_free(void);
void rsync_finish(unsigned int, int);
void http_finish(unsigned int, enum http_result, const char *);
void rrdp_finish(unsigned int, int);
void rsync_fetch(unsigned int, const char *, const char *,
const char *);
void rsync_abort(unsigned int);
void http_fetch(unsigned int, const char *, const char *, int);
void rrdp_fetch(unsigned int, const char *, const char *,
struct rrdp_session *);
void rrdp_abort(unsigned int);
void rrdp_http_done(unsigned int, enum http_result, const char *);
/* Encoding functions for hex and base64. */
unsigned char *load_file(const char *, size_t *);
int base64_decode_len(size_t, size_t *);
int base64_decode(const unsigned char *, size_t,
unsigned char **, size_t *);
int base64_encode_len(size_t, size_t *);
int base64_encode(const unsigned char *, size_t, char **);
char *hex_encode(const unsigned char *, size_t);
int hex_decode(const char *, char *, size_t);
/* Functions for moving data between processes. */
struct ibuf *io_new_buffer(void);
void io_simple_buffer(struct ibuf *, const void *, size_t);
void io_buf_buffer(struct ibuf *, const void *, size_t);
void io_str_buffer(struct ibuf *, const char *);
void io_close_buffer(struct msgbuf *, struct ibuf *);
void io_read_buf(struct ibuf *, void *, size_t);
void io_read_str(struct ibuf *, char **);
void io_read_buf_alloc(struct ibuf *, void **, size_t *);
struct ibuf *io_buf_read(int, struct ibuf **);
struct ibuf *io_buf_recvfd(int, struct ibuf **);
/* X509 helpers. */
void x509_init_oid(void);
int x509_get_aia(X509 *, const char *, char **);
int x509_get_aki(X509 *, const char *, char **);
int x509_get_sia(X509 *, const char *, char **);
int x509_get_ski(X509 *, const char *, char **);
int x509_get_notbefore(X509 *, const char *, time_t *);
int x509_get_notafter(X509 *, const char *, time_t *);
int x509_get_crl(X509 *, const char *, char **);
char *x509_crl_get_aki(X509_CRL *, const char *);
char *x509_crl_get_number(X509_CRL *, const char *);
char *x509_get_pubkey(X509 *, const char *);
char *x509_pubkey_get_ski(X509_PUBKEY *, const char *);
enum cert_purpose x509_get_purpose(X509 *, const char *);
int x509_get_time(const ASN1_TIME *, time_t *);
char *x509_convert_seqnum(const char *, const ASN1_INTEGER *);
int x509_location(const char *, const char *, const char *,
GENERAL_NAME *, char **);
int x509_inherits(X509 *);
int x509_any_inherits(X509 *);
int x509_valid_subject(const char *, const X509 *);
time_t x509_find_expires(time_t, struct auth *, struct crl_tree *);
/* printers */
char *nid2str(int);
char *time2str(time_t);
void x509_print(const X509 *);
void tal_print(const struct tal *);
void cert_print(const struct cert *);
void crl_print(const struct crl *);
void mft_print(const X509 *, const struct mft *);
void roa_print(const X509 *, const struct roa *);
void gbr_print(const X509 *, const struct gbr *);
void rsc_print(const X509 *, const struct rsc *);
void aspa_print(const X509 *, const struct aspa *);
void tak_print(const X509 *, const struct tak *);
void geofeed_print(const X509 *, const struct geofeed *);
void spl_print(const X509 *, const struct spl *);
/* Missing RFC 3779 API */
IPAddrBlocks *IPAddrBlocks_new(void);
void IPAddrBlocks_free(IPAddrBlocks *);
/* Output! */
extern int outformats;
#define FORMAT_OPENBGPD 0x01
#define FORMAT_BIRD 0x02
#define FORMAT_CSV 0x04
#define FORMAT_JSON 0x08
#define FORMAT_OMETRIC 0x10
int outputfiles(struct vrp_tree *v, struct brk_tree *b,
struct vap_tree *, struct vsp_tree *, struct stats *);
int outputheader(FILE *, struct stats *);
int output_bgpd(FILE *, struct vrp_tree *, struct brk_tree *,
struct vap_tree *, struct vsp_tree *, struct stats *);
int output_bird1v4(FILE *, struct vrp_tree *, struct brk_tree *,
struct vap_tree *, struct vsp_tree *, struct stats *);
int output_bird1v6(FILE *, struct vrp_tree *, struct brk_tree *,
struct vap_tree *, struct vsp_tree *, struct stats *);
int output_bird2(FILE *, struct vrp_tree *, struct brk_tree *,
struct vap_tree *, struct vsp_tree *, struct stats *);
int output_csv(FILE *, struct vrp_tree *, struct brk_tree *,
struct vap_tree *, struct vsp_tree *, struct stats *);
int output_json(FILE *, struct vrp_tree *, struct brk_tree *,
struct vap_tree *, struct vsp_tree *, struct stats *);
int output_ometric(FILE *, struct vrp_tree *, struct brk_tree *,
struct vap_tree *, struct vsp_tree *, struct stats *);
void logx(const char *fmt, ...)
__attribute__((format(printf, 1, 2)));
time_t getmonotime(void);
time_t get_current_time(void);
int mkpath(const char *);
int mkpathat(int, const char *);
#define RPKI_PATH_OUT_DIR "/var/db/rpki-client"
#define RPKI_PATH_BASE_DIR "/var/cache/rpki-client"
#define DEFAULT_SKIPLIST_FILE "/etc/rpki/skiplist"
/* Maximum number of TAL files we'll load. */
#define TALSZ_MAX 8
/*
* Maximum number of elements in the sbgp-ipAddrBlock (IP) and
* sbgp-autonomousSysNum (AS) X.509v3 extension of CA/EE certificates.
*/
#define MAX_IP_SIZE 200000
#define MAX_AS_SIZE 200000
/* Maximum acceptable URI length */
#define MAX_URI_LENGTH 2048
/* Min/Max acceptable file size */
#define MIN_FILE_SIZE 100
#define MAX_FILE_SIZE 4000000
/* Maximum number of FileNameAndHash entries per RSC checklist. */
#define MAX_CHECKLIST_ENTRIES 100000
/* Maximum number of FileAndHash entries per manifest. */
#define MAX_MANIFEST_ENTRIES 100000
/* Maximum number of Providers per ASPA object. */
#define MAX_ASPA_PROVIDERS 10000
/* Maximum depth of the RPKI tree. */
#define MAX_CERT_DEPTH 12
/* Maximum number of concurrent http and rsync requests. */
#define MAX_HTTP_REQUESTS 64
#define MAX_RSYNC_REQUESTS 16
/* How many seconds to wait for a connection to succeed. */
#define MAX_CONN_TIMEOUT 15
/* How many seconds to wait for IO from a remote server. */
#define MAX_IO_TIMEOUT 30
/* Maximum number of delegated hosting locations (repositories) for each TAL. */
#define MAX_REPO_PER_TAL 1000
#define HTTP_PROTO "http://"
#define HTTP_PROTO_LEN (sizeof(HTTP_PROTO) - 1)
#define HTTPS_PROTO "https://"
#define HTTPS_PROTO_LEN (sizeof(HTTPS_PROTO) - 1)
#define RSYNC_PROTO "rsync://"
#define RSYNC_PROTO_LEN (sizeof(RSYNC_PROTO) - 1)
#endif /* ! EXTERN_H */
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