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dirmngr: Do PTR lookups only for 'keyserver --hosttable'.
* dirmngr/ks-engine-hkp.c (hostinfo_s): Remove fields v4addr and v5addr and add fields iporname and iporname_valid. (create_new_hostinfo): Clear them. (add_host): Remove the code to set the v4addr and v6addr fields. (ks_hkp_print_hosttable): Remove printing of the fields. Compute the iporname field and display it. (ks_hkp_reload): Force re-computing of the iporname field in ks_hkp_print_hosttable. -- GnuPG-bug-id: 2928 Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch
parent
da2ba20868
commit
a75325faf1
@ -82,16 +82,13 @@ struct hostinfo_s
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unsigned int v6:1; /* Host supports AF_INET6. */
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unsigned int onion:1;/* NAME is an onion (Tor HS) address. */
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unsigned int dead:1; /* Host is currently unresponsive. */
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unsigned int iporname_valid:1; /* The field IPORNAME below is valid */
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/* (but may be NULL) */
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time_t died_at; /* The time the host was marked dead. If this is
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0 the host has been manually marked dead. */
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char *cname; /* Canonical name of the host. Only set if this
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is a pool or NAME has a numerical IP address. */
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char *v4addr; /* A string with the v4 IP address of the host.
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NULL if NAME has a numeric IP address or no v4
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address is available. */
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char *v6addr; /* A string with the v6 IP address of the host.
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NULL if NAME has a numeric IP address or no v6
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address is available. */
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char *iporname; /* Numeric IP address or name for printing. */
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unsigned short port; /* The port used by the host, 0 if unknown. */
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char name[1]; /* The hostname. */
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};
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@ -128,10 +125,10 @@ create_new_hostinfo (const char *name)
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hi->v6 = 0;
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hi->onion = 0;
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hi->dead = 0;
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hi->iporname_valid = 0;
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hi->died_at = 0;
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hi->cname = NULL;
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hi->v4addr = NULL;
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hi->v6addr = NULL;
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hi->iporname = NULL;
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hi->port = 0;
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/* Add it to the hosttable. */
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@ -295,7 +292,6 @@ add_host (const char *name, int is_pool,
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gpg_error_t tmperr;
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char *tmphost;
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int idx, tmpidx;
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int is_numeric = 0;
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int i;
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idx = find_hostinfo (name);
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@ -305,7 +301,6 @@ add_host (const char *name, int is_pool,
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/* For a pool immediately convert the address to a string. */
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tmperr = resolve_dns_addr (ai->addr, ai->addrlen,
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(DNS_NUMERICHOST | DNS_WITHBRACKET), &tmphost);
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is_numeric = 1;
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}
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else if (!is_ip_address (name))
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{
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@ -320,13 +315,9 @@ add_host (const char *name, int is_pool,
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else
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{
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/* Do a PTR lookup on AI. If a name was not found the function
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* returns the numeric address (with brackets) and we set a flag
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* so that we know that the conversion to a numerical string has
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* already be done. */
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* returns the numeric address (with brackets). */
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tmperr = resolve_dns_addr (ai->addr, ai->addrlen,
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DNS_WITHBRACKET, &tmphost);
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if (tmphost && is_ip_address (tmphost))
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is_numeric = 1;
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}
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if (tmperr)
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@ -360,42 +351,16 @@ add_host (const char *name, int is_pool,
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}
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else /* Set or update the entry. */
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{
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char *ipaddr = NULL;
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if (port)
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hosttable[tmpidx]->port = port;
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/* If TMPHOST is not yet a numerical value do this now.
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* Note: This is a simple string operations and not a PTR
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* lookup (due to DNS_NUMERICHOST). */
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if (!is_numeric)
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{
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xfree (tmphost);
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tmperr = resolve_dns_addr (ai->addr, ai->addrlen,
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(DNS_NUMERICHOST
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| DNS_WITHBRACKET),
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&tmphost);
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if (tmperr)
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log_info ("resolve_dns_addr failed: %s\n",
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gpg_strerror (tmperr));
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else
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{
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ipaddr = tmphost;
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tmphost = NULL;
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}
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}
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if (ai->family == AF_INET6)
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{
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hosttable[tmpidx]->v6 = 1;
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xfree (hosttable[tmpidx]->v6addr);
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hosttable[tmpidx]->v6addr = ipaddr;
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}
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else if (ai->family == AF_INET)
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{
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hosttable[tmpidx]->v4 = 1;
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xfree (hosttable[tmpidx]->v4addr);
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hosttable[tmpidx]->v4addr = ipaddr;
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}
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else
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BUG ();
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@ -832,6 +797,7 @@ ks_hkp_print_hosttable (ctrl_t ctrl)
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if (err)
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return err;
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/* FIXME: We need a lock for the hosttable. */
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curtime = gnupg_get_time ();
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for (idx=0; idx < hosttable_size; idx++)
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if ((hi=hosttable[idx]))
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@ -843,16 +809,82 @@ ks_hkp_print_hosttable (ctrl_t ctrl)
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}
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else
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diedstr = died = NULL;
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err = ks_printf_help (ctrl, "%3d %s %s %s %s%s%s%s%s%s%s%s\n",
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if (!hi->iporname_valid)
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{
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char *canon = NULL;
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xfree (hi->iporname);
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hi->iporname = NULL;
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/* Do a lookup just for the display purpose. */
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if (hi->onion || hi->pool)
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;
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else if (is_ip_address (hi->name))
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{
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dns_addrinfo_t aibuf, ai;
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/* Turn the numerical IP address string into an AI and
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* then do a DNS PTR lookup. */
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if (!resolve_dns_name (hi->name, 0, 0,
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SOCK_STREAM,
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&aibuf, &canon))
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{
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if (canon && is_ip_address (canon))
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{
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xfree (canon);
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canon = NULL;
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}
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for (ai = aibuf; !canon && ai; ai = ai->next)
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{
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resolve_dns_addr (ai->addr, ai->addrlen,
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DNS_WITHBRACKET, &canon);
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if (canon && is_ip_address (canon))
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{
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/* We already have the numeric IP - no need to
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* display it a second time. */
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xfree (canon);
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canon = NULL;
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}
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}
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}
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free_dns_addrinfo (aibuf);
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}
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else
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{
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dns_addrinfo_t aibuf, ai;
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/* Get the IP address as a string from a name. Note
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* that resolve_dns_addr allocates CANON on success
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* and thus terminates the loop. */
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if (!resolve_dns_name (hi->name, 0,
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hi->v6? AF_INET6 : AF_INET,
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SOCK_STREAM,
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&aibuf, NULL))
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{
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for (ai = aibuf; !canon && ai; ai = ai->next)
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{
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resolve_dns_addr (ai->addr, ai->addrlen,
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DNS_NUMERICHOST|DNS_WITHBRACKET,
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&canon);
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}
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}
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free_dns_addrinfo (aibuf);
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}
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hi->iporname = canon;
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hi->iporname_valid = 1;
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}
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err = ks_printf_help (ctrl, "%3d %s %s %s %s%s%s%s%s%s%s\n",
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idx,
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hi->onion? "O" : hi->v6? "6":" ",
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hi->v4? "4":" ",
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hi->dead? "d":" ",
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hi->name,
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hi->v6addr? " v6=":"",
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hi->v6addr? hi->v6addr:"",
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hi->v4addr? " v4=":"",
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hi->v4addr? hi->v4addr:"",
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hi->iporname? " (":"",
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hi->iporname? hi->iporname : "",
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hi->iporname? ")":"",
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diedstr? " (":"",
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diedstr? diedstr:"",
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diedstr? ")":"" );
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@ -1059,6 +1091,7 @@ ks_hkp_reload (void)
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hi = hosttable[idx];
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if (!hi)
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continue;
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hi->iporname_valid = 0;
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if (!hi->dead)
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continue;
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hi->dead = 0;
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