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-rw-r--r--cpukit/pppd/ipcp.c546
1 files changed, 403 insertions, 143 deletions
diff --git a/cpukit/pppd/ipcp.c b/cpukit/pppd/ipcp.c
index 5553d3194d..57245721fa 100644
--- a/cpukit/pppd/ipcp.c
+++ b/cpukit/pppd/ipcp.c
@@ -17,9 +17,7 @@
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
-#ifndef lint
-/* static char rcsid[] = "$Id$"; */
-#endif
+#define RCSID "$Id$"
/*
* TODO:
@@ -27,29 +25,39 @@
#include <stdio.h>
#include <string.h>
-#include <syslog.h>
#include <netdb.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
-/* #include <stbconfig.h> */
+#include <arpa/inet.h>
#include "pppd.h"
#include "fsm.h"
#include "ipcp.h"
#include "pathnames.h"
+static const char rcsid[] = RCSID;
+
/* global vars */
ipcp_options ipcp_wantoptions[NUM_PPP]; /* Options that we want to request */
ipcp_options ipcp_gotoptions[NUM_PPP]; /* Options that peer ack'd */
ipcp_options ipcp_allowoptions[NUM_PPP]; /* Options we allow peer to request */
ipcp_options ipcp_hisoptions[NUM_PPP]; /* Options that we ack'd */
+bool disable_defaultip = 0; /* Don't use hostname for default IP adrs */
+
+/* Hook for a plugin to know when IP protocol has come up */
+void (*ip_up_hook) __P((void)) = NULL;
+
+/* Hook for a plugin to know when IP protocol has come down */
+void (*ip_down_hook) __P((void)) = NULL;
+
/* local vars */
-static int cis_received[NUM_PPP]; /* # Conf-Reqs received */
static int default_route_set[NUM_PPP]; /* Have set up a default route */
static int proxy_arp_set[NUM_PPP]; /* Have created proxy arp entry */
+static bool usepeerdns; /* Ask peer for DNS addrs */
+static int ipcp_is_up; /* have called np_up() */
/*
* Callbacks for fsm code. (CI = Configuration Information)
@@ -63,9 +71,6 @@ static int ipcp_rejci __P((fsm *, u_char *, int)); /* Peer rej'd our CI */
static int ipcp_reqci __P((fsm *, u_char *, int *, int)); /* Rcv CI */
static void ipcp_up __P((fsm *)); /* We're UP */
static void ipcp_down __P((fsm *)); /* We're DOWN */
-#if 0
-static void ipcp_script __P((fsm *, char *)); /* Run an up/down script */
-#endif
static void ipcp_finished __P((fsm *)); /* Don't need lower layer */
fsm ipcp_fsm[NUM_PPP]; /* IPCP fsm structure */
@@ -89,6 +94,71 @@ static fsm_callbacks ipcp_callbacks = { /* IPCP callback routines */
};
/*
+ * Command-line options.
+ */
+static int setvjslots __P((char **));
+static int setdnsaddr __P((char **));
+static int setwinsaddr __P((char **));
+
+static option_t ipcp_option_list[] = {
+ { "noip", o_bool, &ipcp_protent.enabled_flag,
+ "Disable IP and IPCP" },
+ { "-ip", o_bool, &ipcp_protent.enabled_flag,
+ "Disable IP and IPCP" },
+ { "novj", o_bool, &ipcp_wantoptions[0].neg_vj,
+ "Disable VJ compression", OPT_A2COPY, &ipcp_allowoptions[0].neg_vj },
+ { "-vj", o_bool, &ipcp_wantoptions[0].neg_vj,
+ "Disable VJ compression", OPT_A2COPY, &ipcp_allowoptions[0].neg_vj },
+ { "novjccomp", o_bool, &ipcp_wantoptions[0].cflag,
+ "Disable VJ connection-ID compression", OPT_A2COPY,
+ &ipcp_allowoptions[0].cflag },
+ { "-vjccomp", o_bool, &ipcp_wantoptions[0].cflag,
+ "Disable VJ connection-ID compression", OPT_A2COPY,
+ &ipcp_allowoptions[0].cflag },
+ { "vj-max-slots", 1, setvjslots,
+ "Set maximum VJ header slots" },
+ { "ipcp-accept-local", o_bool, &ipcp_wantoptions[0].accept_local,
+ "Accept peer's address for us", 1 },
+ { "ipcp-accept-remote", o_bool, &ipcp_wantoptions[0].accept_remote,
+ "Accept peer's address for it", 1 },
+ { "ipparam", o_string, &ipparam,
+ "Set ip script parameter" },
+ { "noipdefault", o_bool, &disable_defaultip,
+ "Don't use name for default IP adrs", 1 },
+ { "ms-dns", 1, setdnsaddr,
+ "DNS address for the peer's use" },
+ { "ms-wins", 1, setwinsaddr,
+ "Nameserver for SMB over TCP/IP for peer" },
+ { "ipcp-restart", o_int, &ipcp_fsm[0].timeouttime,
+ "Set timeout for IPCP" },
+ { "ipcp-max-terminate", o_int, &ipcp_fsm[0].maxtermtransmits,
+ "Set max #xmits for term-reqs" },
+ { "ipcp-max-configure", o_int, &ipcp_fsm[0].maxconfreqtransmits,
+ "Set max #xmits for conf-reqs" },
+ { "ipcp-max-failure", o_int, &ipcp_fsm[0].maxnakloops,
+ "Set max #conf-naks for IPCP" },
+ { "defaultroute", o_bool, &ipcp_wantoptions[0].default_route,
+ "Add default route", OPT_ENABLE|1, &ipcp_allowoptions[0].default_route },
+ { "nodefaultroute", o_bool, &ipcp_allowoptions[0].default_route,
+ "disable defaultroute option", OPT_A2COPY,
+ &ipcp_wantoptions[0].default_route },
+ { "-defaultroute", o_bool, &ipcp_allowoptions[0].default_route,
+ "disable defaultroute option", OPT_A2COPY,
+ &ipcp_wantoptions[0].default_route },
+ { "proxyarp", o_bool, &ipcp_wantoptions[0].proxy_arp,
+ "Add proxy ARP entry", OPT_ENABLE|1, &ipcp_allowoptions[0].proxy_arp },
+ { "noproxyarp", o_bool, &ipcp_allowoptions[0].proxy_arp,
+ "disable proxyarp option", OPT_A2COPY,
+ &ipcp_wantoptions[0].proxy_arp },
+ { "-proxyarp", o_bool, &ipcp_allowoptions[0].proxy_arp,
+ "disable proxyarp option", OPT_A2COPY,
+ &ipcp_wantoptions[0].proxy_arp },
+ { "usepeerdns", o_bool, &usepeerdns,
+ "Ask peer for DNS address(es)", 1 },
+ { NULL }
+};
+
+/*
* Protocol entry points from main code.
*/
static void ipcp_init __P((int));
@@ -103,6 +173,7 @@ static int ipcp_printpkt __P((u_char *, int,
static void ip_check_options __P((void));
static int ip_demand_conf __P((int));
static int ip_active_pkt __P((u_char *, int));
+static void create_resolv __P((u_int32_t, u_int32_t));
struct protent ipcp_protent = {
PPP_IPCP,
@@ -117,12 +188,14 @@ struct protent ipcp_protent = {
NULL,
1,
"IPCP",
+ "IP",
+ ipcp_option_list,
ip_check_options,
ip_demand_conf,
ip_active_pkt
};
-static void ipcp_clear_addrs __P((int));
+static void ipcp_clear_addrs __P((int, u_int32_t, u_int32_t));
/*
* Lengths of configuration options.
@@ -137,7 +210,6 @@ static void ipcp_clear_addrs __P((int));
#define CODENAME(x) ((x) == CONFACK ? "ACK" : \
(x) == CONFNAK ? "NAK" : "REJ")
-
/*
* Make a string representation of a network IP address.
*/
@@ -147,16 +219,96 @@ u_int32_t ipaddr;
{
static char b[64];
- ipaddr = ntohl(ipaddr);
-
- sprintf(b, "%d.%d.%d.%d",
- (u_char)(ipaddr >> 24),
- (u_char)(ipaddr >> 16),
- (u_char)(ipaddr >> 8),
- (u_char)(ipaddr));
+ slprintf(b, sizeof(b), "%I", ipaddr);
return b;
}
+/*
+ * Option parsing.
+ */
+
+/*
+ * setvjslots - set maximum number of connection slots for VJ compression
+ */
+static int
+setvjslots(argv)
+ char **argv;
+{
+ int value;
+
+ if (!int_option(*argv, &value))
+ return 0;
+ if (value < 2 || value > 16) {
+ option_error("vj-max-slots value must be between 2 and 16");
+ return 0;
+ }
+ ipcp_wantoptions [0].maxslotindex =
+ ipcp_allowoptions[0].maxslotindex = value - 1;
+ return 1;
+}
+
+/*
+ * setdnsaddr - set the dns address(es)
+ */
+static int
+setdnsaddr(argv)
+ char **argv;
+{
+ u_int32_t dns;
+ struct hostent *hp;
+
+ dns = inet_addr(*argv);
+ if (dns == (u_int32_t) -1) {
+ if ((hp = gethostbyname(*argv)) == NULL) {
+ option_error("invalid address parameter '%s' for ms-dns option",
+ *argv);
+ return 0;
+ }
+ dns = *(u_int32_t *)hp->h_addr;
+ }
+
+ /* if there is no primary then update it. */
+ if (ipcp_allowoptions[0].dnsaddr[0] == 0)
+ ipcp_allowoptions[0].dnsaddr[0] = dns;
+
+ /* always set the secondary address value to the same value. */
+ ipcp_allowoptions[0].dnsaddr[1] = dns;
+
+ return (1);
+}
+
+/*
+ * setwinsaddr - set the wins address(es)
+ * This is primrarly used with the Samba package under UNIX or for pointing
+ * the caller to the existing WINS server on a Windows NT platform.
+ */
+static int
+setwinsaddr(argv)
+ char **argv;
+{
+ u_int32_t wins;
+ struct hostent *hp;
+
+ wins = inet_addr(*argv);
+ if (wins == (u_int32_t) -1) {
+ if ((hp = gethostbyname(*argv)) == NULL) {
+ option_error("invalid address parameter '%s' for ms-wins option",
+ *argv);
+ return 0;
+ }
+ wins = *(u_int32_t *)hp->h_addr;
+ }
+
+ /* if there is no primary then update it. */
+ if (ipcp_allowoptions[0].winsaddr[0] == 0)
+ ipcp_allowoptions[0].winsaddr[0] = wins;
+
+ /* always set the secondary address value to the same value. */
+ ipcp_allowoptions[0].winsaddr[1] = wins;
+
+ return (1);
+}
+
/*
* ipcp_init - Initialize IPCP.
@@ -182,7 +334,7 @@ ipcp_init(unit)
wo->vj_protocol = IPCP_VJ_COMP;
wo->maxslotindex = MAX_STATES - 1; /* really max index */
wo->cflag = 1;
- ipcp_wantoptions[0].default_route = 1;
+
/* max slots and slot-id compression are currently hardwired in */
/* ppp_if.c to 16 and 1, this needs to be changed (among other */
/* things) gmc */
@@ -274,25 +426,31 @@ ipcp_protrej(unit)
/*
* ipcp_resetci - Reset our CI.
+ * Called by fsm_sconfreq, Send Configure Request.
*/
static void
ipcp_resetci(f)
fsm *f;
{
ipcp_options *wo = &ipcp_wantoptions[f->unit];
+ ipcp_options *go = &ipcp_gotoptions[f->unit];
wo->req_addr = wo->neg_addr && ipcp_allowoptions[f->unit].neg_addr;
- if (wo->ouraddr == 0)
+ if (wo->ouraddr == 0 || disable_defaultip)
wo->accept_local = 1;
if (wo->hisaddr == 0)
wo->accept_remote = 1;
- ipcp_gotoptions[f->unit] = *wo;
- cis_received[f->unit] = 0;
+ wo->req_dns1 = usepeerdns; /* Request DNS addresses from the peer */
+ wo->req_dns2 = usepeerdns;
+ *go = *wo;
+ if (disable_defaultip)
+ go->ouraddr = 0;
}
/*
* ipcp_cilen - Return length of our CI.
+ * Called by fsm_sconfreq, Send Configure Request.
*/
static int
ipcp_cilen(f)
@@ -304,6 +462,7 @@ ipcp_cilen(f)
#define LENCIVJ(neg, old) (neg ? (old? CILEN_COMPRESS : CILEN_VJ) : 0)
#define LENCIADDR(neg, old) (neg ? (old? CILEN_ADDRS : CILEN_ADDR) : 0)
+#define LENCIDNS(neg) (neg ? (CILEN_ADDR) : 0)
/*
* First see if we want to change our options to the old
@@ -316,26 +475,24 @@ ipcp_cilen(f)
}
if (wo->neg_vj && !go->neg_vj && !go->old_vj) {
/* try an older style of VJ negotiation */
- if (cis_received[f->unit] == 0) {
- /* keep trying the new style until we see some CI from the peer */
+ /* use the old style only if the peer did */
+ if (ho->neg_vj && ho->old_vj) {
go->neg_vj = 1;
- } else {
- /* use the old style only if the peer did */
- if (ho->neg_vj && ho->old_vj) {
- go->neg_vj = 1;
- go->old_vj = 1;
- go->vj_protocol = ho->vj_protocol;
- }
+ go->old_vj = 1;
+ go->vj_protocol = ho->vj_protocol;
}
}
return (LENCIADDR(go->neg_addr, go->old_addrs) +
- LENCIVJ(go->neg_vj, go->old_vj));
+ LENCIVJ(go->neg_vj, go->old_vj) +
+ LENCIDNS(go->req_dns1) +
+ LENCIDNS(go->req_dns2)) ;
}
/*
* ipcp_addci - Add our desired CIs to a packet.
+ * Called by fsm_sconfreq, Send Configure Request.
*/
static void
ipcp_addci(f, ucp, lenp)
@@ -380,18 +537,36 @@ ipcp_addci(f, ucp, lenp)
neg = 0; \
}
+#define ADDCIDNS(opt, neg, addr) \
+ if (neg) { \
+ if (len >= CILEN_ADDR) { \
+ u_int32_t l; \
+ PUTCHAR(opt, ucp); \
+ PUTCHAR(CILEN_ADDR, ucp); \
+ l = ntohl(addr); \
+ PUTLONG(l, ucp); \
+ len -= CILEN_ADDR; \
+ } else \
+ neg = 0; \
+ }
+
ADDCIADDR((go->old_addrs? CI_ADDRS: CI_ADDR), go->neg_addr,
go->old_addrs, go->ouraddr, go->hisaddr);
ADDCIVJ(CI_COMPRESSTYPE, go->neg_vj, go->vj_protocol, go->old_vj,
go->maxslotindex, go->cflag);
+ ADDCIDNS(CI_MS_DNS1, go->req_dns1, go->dnsaddr[0]);
+
+ ADDCIDNS(CI_MS_DNS2, go->req_dns2, go->dnsaddr[1]);
+
*lenp -= len;
}
/*
* ipcp_ackci - Ack our CIs.
+ * Called by fsm_rconfack, Receive Configure ACK.
*
* Returns:
* 0 - Ack was bad.
@@ -460,12 +635,31 @@ ipcp_ackci(f, p, len)
} \
}
+#define ACKCIDNS(opt, neg, addr) \
+ if (neg) { \
+ u_int32_t l; \
+ if ((len -= CILEN_ADDR) < 0) \
+ goto bad; \
+ GETCHAR(citype, p); \
+ GETCHAR(cilen, p); \
+ if (cilen != CILEN_ADDR || citype != opt) \
+ goto bad; \
+ GETLONG(l, p); \
+ cilong = htonl(l); \
+ if (addr != cilong) \
+ goto bad; \
+ }
+
ACKCIADDR((go->old_addrs? CI_ADDRS: CI_ADDR), go->neg_addr,
go->old_addrs, go->ouraddr, go->hisaddr);
ACKCIVJ(CI_COMPRESSTYPE, go->neg_vj, go->vj_protocol, go->old_vj,
go->maxslotindex, go->cflag);
+ ACKCIDNS(CI_MS_DNS1, go->req_dns1, go->dnsaddr[0]);
+
+ ACKCIDNS(CI_MS_DNS2, go->req_dns2, go->dnsaddr[1]);
+
/*
* If there are any remaining CIs, then this packet is bad.
*/
@@ -474,7 +668,7 @@ ipcp_ackci(f, p, len)
return (1);
bad:
- IPCPDEBUG((LOG_INFO, "ipcp_ackci: received bad Ack!"));
+ IPCPDEBUG(("ipcp_ackci: received bad Ack!"));
return (0);
}
@@ -482,6 +676,7 @@ bad:
* ipcp_nakci - Peer has sent a NAK for some of our CIs.
* This should not modify any state if the Nak is bad
* or if IPCP is in the OPENED state.
+ * Calback from fsm_rconfnakrej - Receive Configure-Nak or Configure-Reject.
*
* Returns:
* 0 - Nak was bad.
@@ -497,7 +692,7 @@ ipcp_nakci(f, p, len)
u_char cimaxslotindex, cicflag;
u_char citype, cilen, *next;
u_short cishort;
- u_int32_t ciaddr1, ciaddr2, l;
+ u_int32_t ciaddr1, ciaddr2, l, cidnsaddr;
ipcp_options no; /* options we've seen Naks for */
ipcp_options try; /* options to request next time */
@@ -540,6 +735,19 @@ ipcp_nakci(f, p, len)
code \
}
+#define NAKCIDNS(opt, neg, code) \
+ if (go->neg && \
+ ((cilen = p[1]) == CILEN_ADDR) && \
+ len >= cilen && \
+ p[0] == opt) { \
+ len -= cilen; \
+ INCPTR(2, p); \
+ GETLONG(l, p); \
+ cidnsaddr = htonl(l); \
+ no.neg = 1; \
+ code \
+ }
+
/*
* Accept the peer's idea of {our,his} address, if different
* from our idea, only if the accept_{local,remote} flag is set.
@@ -547,13 +755,9 @@ ipcp_nakci(f, p, len)
NAKCIADDR((go->old_addrs? CI_ADDRS: CI_ADDR), neg_addr, go->old_addrs,
if (go->accept_local && ciaddr1) { /* Do we know our address? */
try.ouraddr = ciaddr1;
- IPCPDEBUG((LOG_INFO, "local IP address %s",
- ip_ntoa(ciaddr1)));
}
if (go->accept_remote && ciaddr2) { /* Does he know his? */
try.hisaddr = ciaddr2;
- IPCPDEBUG((LOG_INFO, "remote IP address %s",
- ip_ntoa(ciaddr2)));
}
);
@@ -586,6 +790,14 @@ ipcp_nakci(f, p, len)
}
);
+ NAKCIDNS(CI_MS_DNS1, req_dns1,
+ try.dnsaddr[0] = cidnsaddr;
+ );
+
+ NAKCIDNS(CI_MS_DNS2, req_dns2,
+ try.dnsaddr[1] = cidnsaddr;
+ );
+
/*
* There may be remaining CIs, if the peer is requesting negotiation
* on an option that we didn't include in our request packet.
@@ -638,12 +850,9 @@ ipcp_nakci(f, p, len)
p = next;
}
- /* If there is still anything left, this packet is bad. */
- if (len != 0)
- goto bad;
-
/*
* OK, the Nak is good. Now we can update state.
+ * If there are any remaining options, we ignore them.
*/
if (f->state != OPENED)
*go = try;
@@ -651,13 +860,14 @@ ipcp_nakci(f, p, len)
return 1;
bad:
- IPCPDEBUG((LOG_INFO, "ipcp_nakci: received bad Nak!"));
+ IPCPDEBUG(("ipcp_nakci: received bad Nak!"));
return 0;
}
/*
* ipcp_rejci - Reject some of our CIs.
+ * Callback from fsm_rconfnakrej.
*/
static int
ipcp_rejci(f, p, len)
@@ -722,12 +932,33 @@ ipcp_rejci(f, p, len)
try.neg = 0; \
}
+#define REJCIDNS(opt, neg, dnsaddr) \
+ if (go->neg && \
+ ((cilen = p[1]) == CILEN_ADDR) && \
+ len >= cilen && \
+ p[0] == opt) { \
+ u_int32_t l; \
+ len -= cilen; \
+ INCPTR(2, p); \
+ GETLONG(l, p); \
+ cilong = htonl(l); \
+ /* Check rejected value. */ \
+ if (cilong != dnsaddr) \
+ goto bad; \
+ try.neg = 0; \
+ }
+
+
REJCIADDR((go->old_addrs? CI_ADDRS: CI_ADDR), neg_addr,
go->old_addrs, go->ouraddr, go->hisaddr);
REJCIVJ(CI_COMPRESSTYPE, neg_vj, go->vj_protocol, go->old_vj,
go->maxslotindex, go->cflag);
+ REJCIDNS(CI_MS_DNS1, req_dns1, go->dnsaddr[0]);
+
+ REJCIDNS(CI_MS_DNS2, req_dns2, go->dnsaddr[1]);
+
/*
* If there are any remaining CIs, then this packet is bad.
*/
@@ -741,13 +972,14 @@ ipcp_rejci(f, p, len)
return 1;
bad:
- IPCPDEBUG((LOG_INFO, "ipcp_rejci: received bad Reject!"));
+ IPCPDEBUG(("ipcp_rejci: received bad Reject!"));
return 0;
}
/*
* ipcp_reqci - Check the peer's requested CIs and send appropriate response.
+ * Callback from fsm_rconfreq, Receive Configure Request
*
* Returns: CONFACK, CONFNAK or CONFREJ and input packet modified
* appropriately. If reject_if_disagree is non-zero, doesn't return
@@ -776,8 +1008,6 @@ ipcp_reqci(f, inp, len, reject_if_disagree)
u_char maxslotindex, cflag;
int d;
- cis_received[f->unit] = 1;
-
/*
* Reset all his options.
*/
@@ -793,7 +1023,7 @@ ipcp_reqci(f, inp, len, reject_if_disagree)
if (l < 2 || /* Not enough data for CI header or */
p[1] < 2 || /* CI length too small or */
p[1] > l) { /* CI length too big? */
- IPCPDEBUG((LOG_INFO, "ipcp_reqci: bad CI length!"));
+ IPCPDEBUG(("ipcp_reqci: bad CI length!"));
orc = CONFREJ; /* Reject bad CI */
cilen = l; /* Reject till end of packet */
l = 0; /* Don't loop again */
@@ -806,7 +1036,6 @@ ipcp_reqci(f, inp, len, reject_if_disagree)
switch (citype) { /* Check CI type */
case CI_ADDRS:
- IPCPDEBUG((LOG_INFO, "ipcp: received ADDRS "));
if (!ao->neg_addr ||
cilen != CILEN_ADDRS) { /* Check CI length */
orc = CONFREJ; /* Reject CI */
@@ -821,7 +1050,6 @@ ipcp_reqci(f, inp, len, reject_if_disagree)
*/
GETLONG(tl, p); /* Parse source address (his) */
ciaddr1 = htonl(tl);
- IPCPDEBUG((LOG_INFO, "(%s:", ip_ntoa(ciaddr1)));
if (ciaddr1 != wo->hisaddr
&& (ciaddr1 == 0 || !wo->accept_remote)) {
orc = CONFNAK;
@@ -845,7 +1073,6 @@ ipcp_reqci(f, inp, len, reject_if_disagree)
*/
GETLONG(tl, p); /* Parse desination address (ours) */
ciaddr2 = htonl(tl);
- IPCPDEBUG((LOG_INFO, "%s)", ip_ntoa(ciaddr2)));
if (ciaddr2 != wo->ouraddr) {
if (ciaddr2 == 0 || !wo->accept_local) {
orc = CONFNAK;
@@ -866,8 +1093,6 @@ ipcp_reqci(f, inp, len, reject_if_disagree)
break;
case CI_ADDR:
- IPCPDEBUG((LOG_INFO, "ipcp: received ADDR "));
-
if (!ao->neg_addr ||
cilen != CILEN_ADDR) { /* Check CI length */
orc = CONFREJ; /* Reject CI */
@@ -882,7 +1107,6 @@ ipcp_reqci(f, inp, len, reject_if_disagree)
*/
GETLONG(tl, p); /* Parse source address (his) */
ciaddr1 = htonl(tl);
- IPCPDEBUG((LOG_INFO, "(%s)", ip_ntoa(ciaddr1)));
if (ciaddr1 != wo->hisaddr
&& (ciaddr1 == 0 || !wo->accept_remote)) {
orc = CONFNAK;
@@ -908,7 +1132,6 @@ ipcp_reqci(f, inp, len, reject_if_disagree)
case CI_MS_DNS2:
/* Microsoft primary or secondary DNS request */
d = citype == CI_MS_DNS2;
- IPCPDEBUG((LOG_INFO, "ipcp: received DNS%d Request ", d+1));
/* If we do not have a DNS address then we cannot send it */
if (ao->dnsaddr[d] == 0 ||
@@ -929,7 +1152,6 @@ ipcp_reqci(f, inp, len, reject_if_disagree)
case CI_MS_WINS2:
/* Microsoft primary or secondary WINS request */
d = citype == CI_MS_WINS2;
- IPCPDEBUG((LOG_INFO, "ipcp: received WINS%d Request ", d+1));
/* If we do not have a DNS address then we cannot send it */
if (ao->winsaddr[d] == 0 ||
@@ -947,14 +1169,12 @@ ipcp_reqci(f, inp, len, reject_if_disagree)
break;
case CI_COMPRESSTYPE:
- IPCPDEBUG((LOG_INFO, "ipcp: received COMPRESSTYPE "));
if (!ao->neg_vj ||
(cilen != CILEN_VJ && cilen != CILEN_COMPRESS)) {
orc = CONFREJ;
break;
}
GETSHORT(cishort, p);
- IPCPDEBUG((LOG_INFO, "(%d)", cishort));
if (!(cishort == IPCP_VJ_COMP ||
(cishort == IPCP_VJ_COMP_OLD && cilen == CILEN_COMPRESS))) {
@@ -994,10 +1214,7 @@ ipcp_reqci(f, inp, len, reject_if_disagree)
orc = CONFREJ;
break;
}
-
endswitch:
- IPCPDEBUG((LOG_INFO, " (%s)\n", CODENAME(orc)));
-
if (orc == CONFACK && /* Good CI */
rc != CONFACK) /* but prior CI wasnt? */
continue; /* Don't send this one */
@@ -1050,7 +1267,7 @@ endswitch:
}
*len = ucp - inp; /* Compute output length */
- IPCPDEBUG((LOG_INFO, "ipcp: returning Configure-%s", CODENAME(rc)));
+ IPCPDEBUG(("ipcp: returning Configure-%s", CODENAME(rc)));
return (rc); /* Return final code */
}
@@ -1070,7 +1287,7 @@ ip_check_options()
* Default our local IP address based on our hostname.
* If local IP address already given, don't bother.
*/
- if (wo->ouraddr == 0 && !disable_defaultip) {
+ if (wo->ouraddr == 0) {
/*
* Look up our hostname (possibly with domain name appended)
* and take the first IP address as our local IP address.
@@ -1083,7 +1300,6 @@ ip_check_options()
wo->ouraddr = local;
}
}
-
}
@@ -1097,6 +1313,17 @@ ip_demand_conf(u)
{
ipcp_options *wo = &ipcp_wantoptions[u];
+ if (wo->hisaddr == 0) {
+ /* make up an arbitrary address for the peer */
+ wo->hisaddr = htonl(0x0a707070 + pppifunit);
+ wo->accept_remote = 1;
+ }
+ if (wo->ouraddr == 0) {
+ /* make up an arbitrary address for us */
+ wo->ouraddr = htonl(0x0a404040 + pppifunit);
+ wo->accept_local = 1;
+ disable_defaultip = 1; /* don't tell the peer this address */
+ }
if (!sifaddr(u, wo->ouraddr, wo->hisaddr, GetMask(wo->ouraddr)))
return 0;
if (!sifup(u))
@@ -1110,8 +1337,8 @@ ip_demand_conf(u)
if (sifproxyarp(u, wo->hisaddr))
proxy_arp_set[u] = 1;
- syslog(LOG_NOTICE, "local IP address %s", ip_ntoa(wo->ouraddr));
- syslog(LOG_NOTICE, "remote IP address %s", ip_ntoa(wo->hisaddr));
+ notice("local IP address %I", wo->ouraddr);
+ notice("remote IP address %I", wo->hisaddr);
return 1;
}
@@ -1122,9 +1349,6 @@ ip_demand_conf(u)
*
* Configure the IP network interface appropriately and bring it up.
*/
-#define script_setenv(a,b)
-
-
static void
ipcp_up(f)
fsm *f;
@@ -1134,8 +1358,7 @@ ipcp_up(f)
ipcp_options *go = &ipcp_gotoptions[f->unit];
ipcp_options *wo = &ipcp_wantoptions[f->unit];
- np_up(f->unit, PPP_IP);
- IPCPDEBUG((LOG_INFO, "ipcp: up"));
+ IPCPDEBUG(("ipcp: up"));
/*
* We must have a non-zero IP address for both ends of the link.
@@ -1144,24 +1367,25 @@ ipcp_up(f)
ho->hisaddr = wo->hisaddr;
if (ho->hisaddr == 0) {
- syslog(LOG_ERR, "Could not determine remote IP address");
+ error("Could not determine remote IP address");
ipcp_close(f->unit, "Could not determine remote IP address");
return;
}
if (go->ouraddr == 0) {
- syslog(LOG_ERR, "Could not determine local IP address");
+ error("Could not determine local IP address");
ipcp_close(f->unit, "Could not determine local IP address");
return;
}
-/* script_setenv("IPLOCAL", ip_ntoa(go->ouraddr));
- script_setenv("IPREMOTE", ip_ntoa(ho->hisaddr));
-*/
+
+ if (usepeerdns && (go->dnsaddr[0] || go->dnsaddr[1])) {
+ create_resolv(go->dnsaddr[0], go->dnsaddr[1]);
+ }
+
/*
* Check that the peer is allowed to use the IP address it wants.
*/
if (!auth_ip_addr(f->unit, ho->hisaddr)) {
- syslog(LOG_ERR, "Peer is not authorized to use remote address %s",
- ip_ntoa(ho->hisaddr));
+ error("Peer is not authorized to use remote address %I", ho->hisaddr);
ipcp_close(f->unit, "Unauthorized remote IP address");
return;
}
@@ -1174,7 +1398,42 @@ ipcp_up(f)
* configured, so we put out any saved-up packets, then set the
* interface to pass IP packets.
*/
- {
+ if (demand) {
+ if (go->ouraddr != wo->ouraddr || ho->hisaddr != wo->hisaddr) {
+ ipcp_clear_addrs(f->unit, wo->ouraddr, wo->hisaddr);
+ if (go->ouraddr != wo->ouraddr) {
+ warn("Local IP address changed to %I", go->ouraddr);
+ wo->ouraddr = go->ouraddr;
+ }
+ if (ho->hisaddr != wo->hisaddr) {
+ warn("Remote IP address changed to %I", ho->hisaddr);
+ wo->hisaddr = ho->hisaddr;
+ }
+
+ /* Set the interface to the new addresses */
+ mask = GetMask(go->ouraddr);
+ if (!sifaddr(f->unit, go->ouraddr, ho->hisaddr, mask)) {
+ if (debug)
+ warn("Interface configuration failed");
+ ipcp_close(f->unit, "Interface configuration failed");
+ return;
+ }
+
+ /* assign a default route through the interface if required */
+ if (ipcp_wantoptions[f->unit].default_route)
+ if (sifdefaultroute(f->unit, go->ouraddr, ho->hisaddr))
+ default_route_set[f->unit] = 1;
+
+ /* Make a proxy ARP entry if requested. */
+ if (ipcp_wantoptions[f->unit].proxy_arp)
+ if (sifproxyarp(f->unit, ho->hisaddr))
+ proxy_arp_set[f->unit] = 1;
+
+ }
+ demand_rexmit(PPP_IP);
+ sifnpmode(f->unit, PPP_IP, NPMODE_PASS);
+
+ } else {
/*
* Set IP addresses and (if specified) netmask.
*/
@@ -1182,7 +1441,8 @@ ipcp_up(f)
#if !(defined(SVR4) && (defined(SNI) || defined(__USLC__)))
if (!sifaddr(f->unit, go->ouraddr, ho->hisaddr, mask)) {
- IPCPDEBUG((LOG_WARNING, "sifaddr failed"));
+ if (debug)
+ warn("Interface configuration failed");
ipcp_close(f->unit, "Interface configuration failed");
return;
}
@@ -1190,14 +1450,16 @@ ipcp_up(f)
/* bring the interface up for IP */
if (!sifup(f->unit)) {
- IPCPDEBUG((LOG_WARNING, "sifup failed"));
+ if (debug)
+ warn("Interface failed to come up");
ipcp_close(f->unit, "Interface configuration failed");
return;
}
#if (defined(SVR4) && (defined(SNI) || defined(__USLC__)))
if (!sifaddr(f->unit, go->ouraddr, ho->hisaddr, mask)) {
- IPCPDEBUG((LOG_WARNING, "sifaddr failed"));
+ if (debug)
+ warn("Interface configuration failed");
ipcp_close(f->unit, "Interface configuration failed");
return;
}
@@ -1214,23 +1476,21 @@ ipcp_up(f)
if (sifproxyarp(f->unit, ho->hisaddr))
proxy_arp_set[f->unit] = 1;
- syslog(LOG_NOTICE, "local IP address %s", ip_ntoa(go->ouraddr));
- syslog(LOG_NOTICE, "remote IP address %s", ip_ntoa(ho->hisaddr));
+ ipcp_wantoptions[0].ouraddr = go->ouraddr;
+
+ notice("local IP address %I", go->ouraddr);
+ notice("remote IP address %I", ho->hisaddr);
+ if (go->dnsaddr[0])
+ notice("primary DNS address %I", go->dnsaddr[0]);
+ if (go->dnsaddr[1])
+ notice("secondary DNS address %I", go->dnsaddr[1]);
}
- /*
- * Execute the ip-up script, like this:
- * /etc/ppp/ip-up interface tty speed local-IP remote-IP
- */
- {
-#if 0
-/* XXX PPPConfiguration */
- GlobalSystemStatus *stat;
- stat=LockSTBSystemParam();
- stat->ConnectionStatus=Connected;
- UnlockSTBSystemParam();
-#endif
- }
+ np_up(f->unit, PPP_IP);
+ ipcp_is_up = 1;
+
+ if (ip_up_hook)
+ ip_up_hook();
}
@@ -1244,27 +1504,30 @@ static void
ipcp_down(f)
fsm *f;
{
- IPCPDEBUG((LOG_INFO, "ipcp: down"));
- np_down(f->unit, PPP_IP);
+ IPCPDEBUG(("ipcp: down"));
+ /* XXX a bit IPv4-centric here, we only need to get the stats
+ * before the interface is marked down. */
+ update_link_stats(f->unit);
+ if (ip_down_hook)
+ ip_down_hook();
+ if (ipcp_is_up) {
+ ipcp_is_up = 0;
+ np_down(f->unit, PPP_IP);
+ }
sifvjcomp(f->unit, 0, 0, 0);
/*
* If we are doing dial-on-demand, set the interface
* to queue up outgoing packets (for now).
*/
+ if (demand) {
+ sifnpmode(f->unit, PPP_IP, NPMODE_QUEUE);
+ } else {
+ sifnpmode(f->unit, PPP_IP, NPMODE_DROP);
sifdown(f->unit);
- ipcp_clear_addrs(f->unit);
-
- /* Execute the ip-down script */
- {
-#if 0
-/* XXX PPPConfiguration */
- GlobalSystemStatus *stat;
- stat=LockSTBSystemParam();
- stat->ConnectionStatus=NotConnected;
- UnlockSTBSystemParam();
-#endif
- }
+ ipcp_clear_addrs(f->unit, ipcp_gotoptions[f->unit].ouraddr,
+ ipcp_hisoptions[f->unit].hisaddr);
+ }
}
@@ -1273,13 +1536,11 @@ ipcp_down(f)
* proxy arp entries, etc.
*/
static void
-ipcp_clear_addrs(unit)
+ipcp_clear_addrs(unit, ouraddr, hisaddr)
int unit;
+ u_int32_t ouraddr; /* local address */
+ u_int32_t hisaddr; /* remote address */
{
- u_int32_t ouraddr, hisaddr;
-
- ouraddr = ipcp_gotoptions[unit].ouraddr;
- hisaddr = ipcp_hisoptions[unit].hisaddr;
if (proxy_arp_set[unit]) {
cifproxyarp(unit, hisaddr);
proxy_arp_set[unit] = 0;
@@ -1302,35 +1563,32 @@ ipcp_finished(f)
np_finished(f->unit, PPP_IP);
}
-
-#if 0
/*
- * ipcp_script - Execute a script with arguments
- * interface-name tty-name speed local-IP remote-IP.
+ * create_resolv - create the replacement resolv.conf file
*/
static void
-ipcp_script(f, script)
- fsm *f;
- char *script;
+create_resolv(peerdns1, peerdns2)
+ u_int32_t peerdns1, peerdns2;
{
- char strspeed[32], strlocal[32], strremote[32];
- char *argv[8];
-
- sprintf(strspeed, "%d", baud_rate);
- strcpy(strlocal, ip_ntoa(ipcp_gotoptions[f->unit].ouraddr));
- strcpy(strremote, ip_ntoa(ipcp_hisoptions[f->unit].hisaddr));
-
- argv[0] = script;
- argv[1] = ifname;
- argv[2] = devnam;
- argv[3] = strspeed;
- argv[4] = strlocal;
- argv[5] = strremote;
- argv[6] = ipparam;
- argv[7] = NULL;
- run_program(script, argv, 0);
+ FILE *f;
+
+ f = fopen(_PATH_RESOLV, "w");
+ if (f == NULL) {
+ error("Failed to create %s: %m", _PATH_RESOLV);
+ return;
+ }
+
+ if (peerdns1)
+ fprintf(f, "nameserver %s\n", ip_ntoa(peerdns1));
+
+ if (peerdns2)
+ fprintf(f, "nameserver %s\n", ip_ntoa(peerdns2));
+
+ if (ferror(f))
+ error("Write failed to %s: %m", _PATH_RESOLV);
+
+ fclose(f);
}
-#endif
/*
* ipcp_printpkt - print the contents of an IPCP packet.
@@ -1372,7 +1630,7 @@ ipcp_printpkt(p, plen, printer, arg)
case CONFACK:
case CONFNAK:
case CONFREJ:
-
+ /* print option list */
while (len >= 2) {
GETCHAR(code, p);
GETCHAR(olen, p);
@@ -1421,7 +1679,8 @@ ipcp_printpkt(p, plen, printer, arg)
case CI_MS_DNS2:
p += 2;
GETLONG(cilong, p);
- printer(arg, "ms-dns %I", htonl(cilong));
+ printer(arg, "ms-dns%d %I", code - CI_MS_DNS1 + 1,
+ htonl(cilong));
break;
case CI_MS_WINS1:
case CI_MS_WINS2:
@@ -1442,13 +1701,14 @@ ipcp_printpkt(p, plen, printer, arg)
case TERMREQ:
if (len > 0 && *p >= ' ' && *p < 0x7f) {
printer(arg, " ");
- print_string(p, len, printer, arg);
+ print_string(p, len, printer, arg);
p += len;
len = 0;
}
break;
}
-
+
+ /* print the rest of the bytes in the packet */
for (; len > 0; --len) {
GETCHAR(code, p);
printer(arg, " %.2x", code);