Support client side DNS server negotiation, disabled
and denied by default (POLA). o Remove ``enable'' msext. Now, doing a ``set nbns'' will automatically enable a NBNS ACK/NAK rather than a REJ. o Add accept|disable|deny|enable dns. If we ``accept'', we'll tell the peer what our nameservers are (if he asks). The values in resolv.conf can be overridden with the ``set dns'' command. If we ``enable'', we'll REQ using our resolv.conf entries, and any NAKs are written back to resolv.conf. o Remove ``show msext'' and show the relevent IP numbers in ``show ipcp''.
This commit is contained in:
Brian Somers
parent
030e4ebba8
commit
3edeb0c69e
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/cvs2svn/branches/MP/; revision=35255
@ -23,7 +23,7 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: bundle.c,v 1.1.2.50 1998/04/16 23:06:53 brian Exp $
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* $Id: bundle.c,v 1.1.2.51 1998/04/17 22:04:18 brian Exp $
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*/
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#include <sys/types.h>
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@ -871,8 +871,6 @@ bundle_ShowStatus(struct cmdargs const *arg)
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optval(arg->bundle, OPT_IDCHECK));
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prompt_Printf(arg->prompt, " Loopback: %s\n",
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optval(arg->bundle, OPT_LOOPBACK));
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prompt_Printf(arg->prompt, " MS Ext: %s\n",
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optval(arg->bundle, OPT_MSEXT));
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prompt_Printf(arg->prompt, " PasswdAuth: %s\n",
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optval(arg->bundle, OPT_PASSWDAUTH));
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prompt_Printf(arg->prompt, " Proxy: %s\n",
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@ -23,7 +23,7 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: bundle.h,v 1.1.2.29 1998/04/16 00:25:50 brian Exp $
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* $Id: bundle.h,v 1.1.2.30 1998/04/17 22:04:22 brian Exp $
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*/
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#define PHASE_DEAD 0 /* Link is dead */
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@ -35,11 +35,10 @@
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/* cfg.opt bit settings */
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#define OPT_IDCHECK 0x01
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#define OPT_LOOPBACK 0x02
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#define OPT_MSEXT 0x04
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#define OPT_PASSWDAUTH 0x08
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#define OPT_PROXY 0x10
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#define OPT_THROUGHPUT 0x20
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#define OPT_UTMP 0x40
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#define OPT_PASSWDAUTH 0x04
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#define OPT_PROXY 0x08
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#define OPT_THROUGHPUT 0x10
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#define OPT_UTMP 0x20
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#define Enabled(b, o) ((b)->cfg.opt & (o))
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@ -17,7 +17,7 @@
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* $Id: command.c,v 1.131.2.61 1998/04/16 00:25:53 brian Exp $
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* $Id: command.c,v 1.131.2.62 1998/04/16 18:30:50 brian Exp $
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*
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*/
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#include <sys/types.h>
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@ -101,6 +101,8 @@
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#define VAR_PAPRETRY 17
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#define VAR_CCPRETRY 18
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#define VAR_IPCPRETRY 19
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#define VAR_DNS 20
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#define VAR_NBNS 21
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/* ``accept|deny|disable|enable'' masks */
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#define NEG_HISMASK (1)
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@ -116,6 +118,7 @@
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#define NEG_PRED1 46
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#define NEG_PROTOCOMP 47
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#define NEG_VJCOMP 48
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#define NEG_DNS 49
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static int ShowCommand(struct cmdargs const *);
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static int TerminalCommand(struct cmdargs const *);
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@ -497,7 +500,7 @@ static int
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ShowVersion(struct cmdargs const *arg)
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{
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static char VarVersion[] = "PPP Version 2.0-beta";
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static char VarLocalVersion[] = "$Date: 1998/04/16 00:25:53 $";
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static char VarLocalVersion[] = "$Date: 1998/04/16 18:30:50 $";
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prompt_Printf(arg->prompt, "%s - %s \n", VarVersion, VarLocalVersion);
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return 0;
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@ -513,26 +516,6 @@ ShowProtocolStats(struct cmdargs const *arg)
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return 0;
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}
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#ifndef NOMSEXT
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static int
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ShowMSExt(struct cmdargs const *arg)
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{
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prompt_Printf(arg->prompt, " MS PPP extention values \n");
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prompt_Printf(arg->prompt, " Primary NS : %s\n",
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inet_ntoa(arg->bundle->ncp.ipcp.cfg.ns_entries[0]));
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prompt_Printf(arg->prompt, " Secondary NS : %s\n",
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inet_ntoa(arg->bundle->ncp.ipcp.cfg.ns_entries[1]));
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prompt_Printf(arg->prompt, " Primary NBNS : %s\n",
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inet_ntoa(arg->bundle->ncp.ipcp.cfg.nbns_entries[0]));
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prompt_Printf(arg->prompt, " Secondary NBNS : %s\n",
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inet_ntoa(arg->bundle->ncp.ipcp.cfg.nbns_entries[1]));
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return 0;
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}
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#endif
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static struct cmdtab const ShowCommands[] = {
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{"bundle", NULL, bundle_ShowStatus, LOCAL_AUTH,
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"Show bundle details", "show bundle"},
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@ -558,10 +541,6 @@ static struct cmdtab const ShowCommands[] = {
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"Show memory map", "show mem"},
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{"modem", NULL, modem_ShowStatus, LOCAL_AUTH | LOCAL_CX,
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"Show modem setups", "show modem"},
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#ifndef NOMSEXT
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{"msext", NULL, ShowMSExt, LOCAL_AUTH,
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"Show MS PPP extentions", "show msext"},
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#endif
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{"proto", NULL, ShowProtocolStats, LOCAL_AUTH | LOCAL_CX_OPT,
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"Show protocol summary", "show proto"},
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{"route", NULL, ShowRoute, LOCAL_AUTH,
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@ -1030,54 +1009,6 @@ SetInterfaceAddr(struct cmdargs const *arg)
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return 0;
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}
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#ifndef NOMSEXT
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static void
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SetMSEXT(struct ipcp *ipcp, struct in_addr * pri_addr,
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struct in_addr * sec_addr, int argc, char const *const *argv)
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{
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int dummyint;
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struct in_addr dummyaddr;
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pri_addr->s_addr = sec_addr->s_addr = 0L;
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if (argc > 0) {
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ParseAddr(ipcp, argc, argv++, pri_addr, &dummyaddr, &dummyint);
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if (--argc > 0)
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ParseAddr(ipcp, argc, argv++, sec_addr, &dummyaddr, &dummyint);
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else
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sec_addr->s_addr = pri_addr->s_addr;
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}
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/*
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* if the primary/secondary ns entries are 0.0.0.0 we should set them to
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* either the localhost's ip, or the values in /etc/resolv.conf ??
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*
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* up to you if you want to implement this...
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*/
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}
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static int
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SetNS(struct cmdargs const *arg)
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{
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SetMSEXT(&arg->bundle->ncp.ipcp, &arg->bundle->ncp.ipcp.cfg.ns_entries[0],
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&arg->bundle->ncp.ipcp.cfg.ns_entries[1], arg->argc - arg->argn,
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arg->argv + arg->argn);
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return 0;
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}
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static int
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SetNBNS(struct cmdargs const *arg)
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{
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SetMSEXT(&arg->bundle->ncp.ipcp, &arg->bundle->ncp.ipcp.cfg.nbns_entries[0],
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&arg->bundle->ncp.ipcp.cfg.nbns_entries[1], arg->argc - arg->argn,
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arg->argv + arg->argn);
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return 0;
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}
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#endif /* MS_EXT */
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static int
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SetVariable(struct cmdargs const *arg)
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{
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@ -1087,6 +1018,8 @@ SetVariable(struct cmdargs const *arg)
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struct datalink *cx = arg->cx; /* AUTH_CX uses this */
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const char *err = NULL;
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struct link *l = ChooseLink(arg); /* AUTH_CX_OPT uses this */
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int dummyint;
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struct in_addr dummyaddr, *addr;
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if (arg->argc > arg->argn)
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argp = arg->argv[arg->argn];
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@ -1268,6 +1201,28 @@ SetVariable(struct cmdargs const *arg)
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} else
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arg->bundle->ncp.ipcp.cfg.fsmretry = ulong_val;
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break;
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case VAR_NBNS:
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case VAR_DNS:
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if (param == VAR_DNS)
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addr = arg->bundle->ncp.ipcp.cfg.ns.dns;
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else
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addr = arg->bundle->ncp.ipcp.cfg.ns.nbns;
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addr[0].s_addr = addr[1].s_addr = INADDR_ANY;
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if (arg->argc > arg->argn) {
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ParseAddr(&arg->bundle->ncp.ipcp, 1, arg->argv + arg->argn,
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addr, &dummyaddr, &dummyint);
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if (arg->argc > arg->argn+1)
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ParseAddr(&arg->bundle->ncp.ipcp, 1, arg->argv + arg->argn + 1,
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addr + 1, &dummyaddr, &dummyint);
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if (addr[1].s_addr == INADDR_ANY)
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addr[1].s_addr = addr[0].s_addr;
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if (addr[0].s_addr == INADDR_ANY)
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addr[0].s_addr = addr[1].s_addr;
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}
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break;
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}
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return err ? 1 : 0;
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@ -1309,6 +1264,8 @@ static struct cmdtab const SetCommands[] = {
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(const void *) VAR_DEVICE},
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{"dial", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
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"Set dialing script", "set dial chat-script", (const void *) VAR_DIAL},
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{"dns", NULL, SetVariable, LOCAL_AUTH, "Set Domain Name Server",
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"set dns pri-addr [sec-addr]", (const void *)VAR_DNS},
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{"encrypt", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
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"Select CHAP encryption type", "set encrypt MSChap|MD5",
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(const void *)VAR_ENC},
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@ -1336,12 +1293,8 @@ static struct cmdtab const SetCommands[] = {
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"Set MRU value", "set mru value", (const void *)VAR_MRU},
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{"mtu", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT,
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"Set MTU value", "set mtu value", (const void *)VAR_MTU},
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#ifndef NOMSEXT
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{"nbns", NULL, SetNBNS, LOCAL_AUTH,
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"Set NetBIOS NameServer", "set nbns pri-addr [sec-addr]"},
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{"ns", NULL, SetNS, LOCAL_AUTH,
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"Set NameServer", "set ns pri-addr [sec-addr]"},
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#endif
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{"nbns", NULL, SetVariable, LOCAL_AUTH, "Set NetBIOS Name Server",
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"set nbns pri-addr [sec-addr]", (const void *)VAR_NBNS},
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{"openmode", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "Set open mode",
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"set openmode active|passive [secs]", (const void *)VAR_OPENMODE},
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{"papretry", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
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@ -1691,6 +1644,10 @@ NegotiateSet(struct cmdargs const *arg)
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l->ccp.cfg.neg[CCP_NEG_DEFLATE] &= keep;
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l->ccp.cfg.neg[CCP_NEG_DEFLATE] |= add;
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break;
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case NEG_DNS:
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arg->bundle->ncp.ipcp.cfg.ns.dns_neg &= keep;
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arg->bundle->ncp.ipcp.cfg.ns.dns_neg |= add;
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break;
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case NEG_LQR:
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cx->physical->link.lcp.cfg.lqr &= keep;
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cx->physical->link.lcp.cfg.lqr |= add;
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@ -1721,12 +1678,10 @@ NegotiateSet(struct cmdargs const *arg)
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}
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|
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static struct cmdtab const NegotiateCommands[] = {
|
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{"idcheck", NULL, OptSet, LOCAL_AUTH, "Check reply FSM ids",
|
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{"idcheck", NULL, OptSet, LOCAL_AUTH, "Check FSM reply ids",
|
||||
"disable|enable", (const void *)OPT_IDCHECK},
|
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{"loopback", NULL, OptSet, LOCAL_AUTH, "Loop packets for local iface",
|
||||
"disable|enable", (const void *)OPT_LOOPBACK},
|
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{"msext", NULL, OptSet, LOCAL_AUTH, "Send NS & NBNS values",
|
||||
"disable|enable", (const void *)OPT_MSEXT},
|
||||
{"passwdauth", NULL, OptSet, LOCAL_AUTH, "Use passwd file",
|
||||
"disable|enable", (const void *)OPT_PASSWDAUTH},
|
||||
{"proxy", NULL, OptSet, LOCAL_AUTH, "Create proxy ARP entry",
|
||||
@ -1736,7 +1691,7 @@ static struct cmdtab const NegotiateCommands[] = {
|
||||
{"utmp", NULL, OptSet, LOCAL_AUTH, "Log connections in utmp",
|
||||
"disable|enable", (const void *)OPT_UTMP},
|
||||
|
||||
#define OPT_MAX 7 /* accept/deny allowed below and not above */
|
||||
#define OPT_MAX 6 /* accept/deny allowed below and not above */
|
||||
|
||||
{"acfcomp", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX,
|
||||
"Address & Control field compression", "accept|deny|disable|enable",
|
||||
@ -1747,15 +1702,17 @@ static struct cmdtab const NegotiateCommands[] = {
|
||||
{"deflate", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT,
|
||||
"Deflate compression", "accept|deny|disable|enable",
|
||||
(const void *)NEG_DEFLATE},
|
||||
{"deflate24", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT,
|
||||
"Deflate (type 24) compression", "accept|deny|disable|enable",
|
||||
(const void *)NEG_PPPDDEFLATE},
|
||||
{"dns", NULL, NegotiateSet, LOCAL_AUTH,
|
||||
"DNS specification", "accept|deny|disable|enable", (const void *)NEG_DNS},
|
||||
{"lqr", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX,
|
||||
"Link Quality Reports", "accept|deny|disable|enable",
|
||||
(const void *)NEG_LQR},
|
||||
{"pap", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX,
|
||||
"Password Authentication protocol", "accept|deny|disable|enable",
|
||||
(const void *)NEG_PAP},
|
||||
{"deflate24", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT,
|
||||
"Deflate (type 24) compression", "accept|deny|disable|enable",
|
||||
(const void *)NEG_PPPDDEFLATE},
|
||||
{"pred1", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT,
|
||||
"Predictor 1 compression", "accept|deny|disable|enable",
|
||||
(const void *)NEG_PRED1},
|
||||
@ -1789,8 +1746,8 @@ NegotiateCommand(struct cmdargs const *arg)
|
||||
0 : OPT_MAX), 2, 1, argv, arg->prompt, arg->cx);
|
||||
}
|
||||
} else if (arg->prompt)
|
||||
prompt_Printf(arg->prompt, "Use `%s ?' to get a list or `%s ? <var>' for"
|
||||
" syntax help.\n", arg->argv[arg->argn], arg->argv[arg->argn] );
|
||||
prompt_Printf(arg->prompt, "Use `%s ?' to get a list.\n",
|
||||
arg->argv[arg->argn-1]);
|
||||
else
|
||||
LogPrintf(LogWARN, "%s command must have arguments\n",
|
||||
arg->argv[arg->argn] );
|
||||
|
||||
@ -23,7 +23,7 @@
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* $Id: id.c,v 1.6.4.3 1998/04/06 09:12:28 brian Exp $
|
||||
* $Id: id.c,v 1.6.4.4 1998/04/07 00:53:45 brian Exp $
|
||||
*/
|
||||
|
||||
#include <sys/types.h>
|
||||
@ -31,6 +31,7 @@
|
||||
|
||||
#include <sys/ioctl.h>
|
||||
#include <fcntl.h>
|
||||
#include <stdarg.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <sysexits.h>
|
||||
@ -128,14 +129,17 @@ ID0fopen(const char *path, const char *mode)
|
||||
}
|
||||
|
||||
int
|
||||
ID0open(const char *path, int flags)
|
||||
ID0open(const char *path, int flags, ...)
|
||||
{
|
||||
int ret;
|
||||
va_list ap;
|
||||
|
||||
va_start(ap, flags);
|
||||
ID0set0();
|
||||
ret = open(path, flags);
|
||||
ret = open(path, flags, va_arg(ap, int));
|
||||
LogPrintf(LogID0, "%d = open(\"%s\", %d)\n", ret, path, flags);
|
||||
ID0setuser();
|
||||
va_end(ap);
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
@ -23,7 +23,7 @@
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* $Id: id.h,v 1.3 1997/12/27 19:23:13 brian Exp $
|
||||
* $Id: id.h,v 1.3.4.1 1998/02/19 02:08:47 brian Exp $
|
||||
*/
|
||||
|
||||
struct utmp;
|
||||
@ -34,7 +34,7 @@ extern int ID0ioctl(int, unsigned long, void *);
|
||||
extern int ID0unlink(const char *);
|
||||
extern int ID0socket(int, int, int);
|
||||
extern FILE *ID0fopen(const char *, const char *);
|
||||
extern int ID0open(const char *, int);
|
||||
extern int ID0open(const char *, int, ...);
|
||||
extern int ID0write(int, const void *, size_t);
|
||||
extern int ID0uu_lock(const char *);
|
||||
extern int ID0uu_unlock(const char *);
|
||||
|
||||
@ -17,7 +17,7 @@
|
||||
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
|
||||
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
||||
*
|
||||
* $Id: ipcp.c,v 1.50.2.36 1998/04/14 23:17:07 brian Exp $
|
||||
* $Id: ipcp.c,v 1.50.2.37 1998/04/16 00:26:00 brian Exp $
|
||||
*
|
||||
* TODO:
|
||||
* o More RFC1772 backwoard compatibility
|
||||
@ -32,6 +32,8 @@
|
||||
#include <net/if.h>
|
||||
#include <sys/sockio.h>
|
||||
|
||||
#include <fcntl.h>
|
||||
#include <resolv.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
@ -70,6 +72,8 @@
|
||||
|
||||
#undef REJECTED
|
||||
#define REJECTED(p, x) ((p)->peer_reject & (1<<(x)))
|
||||
#define issep(ch) ((ch) == ' ' || (ch) == '\t')
|
||||
#define isip(ch) (((ch) >= '0' && (ch) <= '9') || (ch) == '.')
|
||||
|
||||
struct compreq {
|
||||
u_short proto;
|
||||
@ -135,6 +139,118 @@ ipcp_AddOutOctets(struct ipcp *ipcp, int n)
|
||||
throughput_addout(&ipcp->throughput, n);
|
||||
}
|
||||
|
||||
static void
|
||||
getdns(struct ipcp *ipcp, struct in_addr addr[2])
|
||||
{
|
||||
FILE *fp;
|
||||
|
||||
addr[0].s_addr = addr[1].s_addr = INADDR_ANY;
|
||||
if ((fp = fopen(_PATH_RESCONF, "r")) != NULL) {
|
||||
char buf[LINE_LEN], *cp, *end;
|
||||
int n;
|
||||
|
||||
n = 0;
|
||||
buf[sizeof buf - 1] = '\0';
|
||||
while (fgets(buf, sizeof buf - 1, fp)) {
|
||||
if (!strncmp(buf, "nameserver", 10) && issep(buf[10])) {
|
||||
for (cp = buf + 11; issep(*cp); cp++)
|
||||
;
|
||||
for (end = cp; isip(*end); end++)
|
||||
;
|
||||
*end = '\0';
|
||||
if (inet_aton(cp, addr+n) && ++n == 2)
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (n == 1)
|
||||
addr[1] = addr[0];
|
||||
fclose(fp);
|
||||
}
|
||||
}
|
||||
|
||||
static int
|
||||
setdns(struct ipcp *ipcp, struct in_addr addr[2])
|
||||
{
|
||||
FILE *fp;
|
||||
char wbuf[LINE_LEN + 54];
|
||||
int wlen;
|
||||
|
||||
if (addr[0].s_addr == INADDR_ANY || addr[1].s_addr == INADDR_ANY) {
|
||||
struct in_addr old[2];
|
||||
|
||||
getdns(ipcp, old);
|
||||
if (addr[0].s_addr == INADDR_ANY)
|
||||
addr[0] = old[0];
|
||||
if (addr[1].s_addr == INADDR_ANY)
|
||||
addr[1] = old[1];
|
||||
}
|
||||
|
||||
if (addr[0].s_addr == INADDR_ANY && addr[1].s_addr == INADDR_ANY) {
|
||||
LogPrintf(LogWARN, "%s not modified: All nameservers NAKd\n",
|
||||
_PATH_RESCONF);
|
||||
return 0;
|
||||
}
|
||||
|
||||
wlen = 0;
|
||||
if ((fp = fopen(_PATH_RESCONF, "r")) != NULL) {
|
||||
char buf[LINE_LEN];
|
||||
int len;
|
||||
|
||||
buf[sizeof buf - 1] = '\0';
|
||||
while (fgets(buf, sizeof buf - 1, fp)) {
|
||||
if (strncmp(buf, "nameserver", 10) || !issep(buf[10])) {
|
||||
len = strlen(buf);
|
||||
if (len > sizeof wbuf - wlen) {
|
||||
LogPrintf(LogWARN, "%s: Can only cope with max file size %d\n",
|
||||
_PATH_RESCONF, LINE_LEN);
|
||||
fclose(fp);
|
||||
return 0;
|
||||
}
|
||||
memcpy(wbuf + wlen, buf, len);
|
||||
wlen += len;
|
||||
}
|
||||
}
|
||||
fclose(fp);
|
||||
}
|
||||
|
||||
if (addr[0].s_addr != INADDR_ANY) {
|
||||
snprintf(wbuf + wlen, sizeof wbuf - wlen, "nameserver %s\n",
|
||||
inet_ntoa(addr[0]));
|
||||
LogPrintf(LogIPCP, "Primary nameserver set to %s", wbuf + wlen + 11);
|
||||
wlen += strlen(wbuf + wlen);
|
||||
}
|
||||
|
||||
if (addr[1].s_addr != INADDR_ANY && addr[1].s_addr != addr[0].s_addr) {
|
||||
snprintf(wbuf + wlen, sizeof wbuf - wlen, "nameserver %s\n",
|
||||
inet_ntoa(addr[1]));
|
||||
LogPrintf(LogIPCP, "Secondary nameserver set to %s", wbuf + wlen + 11);
|
||||
wlen += strlen(wbuf + wlen);
|
||||
}
|
||||
|
||||
if (wlen) {
|
||||
int fd;
|
||||
|
||||
if ((fd = ID0open(_PATH_RESCONF, O_WRONLY|O_CREAT, 0644)) != -1) {
|
||||
if (write(fd, wbuf, wlen) != wlen) {
|
||||
LogPrintf(LogERROR, "setdns: write(): %s\n", strerror(errno));
|
||||
close(fd);
|
||||
return 0;
|
||||
}
|
||||
if (ftruncate(fd, wlen) == -1) {
|
||||
LogPrintf(LogERROR, "setdns: truncate(): %s\n", strerror(errno));
|
||||
close(fd);
|
||||
return 0;
|
||||
}
|
||||
close(fd);
|
||||
} else {
|
||||
LogPrintf(LogERROR, "setdns: open(): %s\n", strerror(errno));
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
int
|
||||
ReportIpcpStatus(struct cmdargs const *arg)
|
||||
{
|
||||
@ -151,15 +267,23 @@ ReportIpcpStatus(struct cmdargs const *arg)
|
||||
|
||||
prompt_Printf(arg->prompt, "\nDefaults:\n");
|
||||
prompt_Printf(arg->prompt, " My Address: %s/%d\n",
|
||||
inet_ntoa(arg->bundle->ncp.ipcp.cfg.my_range.ipaddr),
|
||||
arg->bundle->ncp.ipcp.cfg.my_range.width);
|
||||
inet_ntoa(arg->bundle->ncp.ipcp.cfg.my_range.ipaddr),
|
||||
arg->bundle->ncp.ipcp.cfg.my_range.width);
|
||||
if (iplist_isvalid(&arg->bundle->ncp.ipcp.cfg.peer_list))
|
||||
prompt_Printf(arg->prompt, " His Address: %s\n",
|
||||
arg->bundle->ncp.ipcp.cfg.peer_list.src);
|
||||
arg->bundle->ncp.ipcp.cfg.peer_list.src);
|
||||
else
|
||||
prompt_Printf(arg->prompt, " His Address: %s/%d\n",
|
||||
inet_ntoa(arg->bundle->ncp.ipcp.cfg.peer_range.ipaddr),
|
||||
arg->bundle->ncp.ipcp.cfg.peer_range.width);
|
||||
inet_ntoa(arg->bundle->ncp.ipcp.cfg.peer_range.ipaddr),
|
||||
arg->bundle->ncp.ipcp.cfg.peer_range.width);
|
||||
prompt_Printf(arg->prompt, " DNS: %s, ",
|
||||
inet_ntoa(arg->bundle->ncp.ipcp.cfg.ns.dns[0]));
|
||||
prompt_Printf(arg->prompt, "%s\n",
|
||||
inet_ntoa(arg->bundle->ncp.ipcp.cfg.ns.dns[1]));
|
||||
prompt_Printf(arg->prompt, " NetBIOS NS: %s, ",
|
||||
inet_ntoa(arg->bundle->ncp.ipcp.cfg.ns.nbns[0]));
|
||||
prompt_Printf(arg->prompt, "%s\n",
|
||||
inet_ntoa(arg->bundle->ncp.ipcp.cfg.ns.nbns[1]));
|
||||
|
||||
prompt_Printf(arg->prompt, "\nNegotiation:\n");
|
||||
if (arg->bundle->ncp.ipcp.cfg.HaveTriggerAddress)
|
||||
@ -168,11 +292,13 @@ ReportIpcpStatus(struct cmdargs const *arg)
|
||||
else
|
||||
prompt_Printf(arg->prompt, " Trigger Address: MYADDR\n");
|
||||
|
||||
prompt_Printf(arg->prompt, " VJ compression: %s (%d slots %s slot compression)\n",
|
||||
prompt_Printf(arg->prompt, " DNS: %s\n",
|
||||
command_ShowNegval(arg->bundle->ncp.ipcp.cfg.ns.dns_neg));
|
||||
prompt_Printf(arg->prompt, " VJ compression: %s (%d slots %s slot "
|
||||
"compression)\n",
|
||||
command_ShowNegval(arg->bundle->ncp.ipcp.cfg.vj.neg),
|
||||
arg->bundle->ncp.ipcp.cfg.vj.slots,
|
||||
arg->bundle->ncp.ipcp.cfg.vj.slotcomp ? "with" : "without"
|
||||
);
|
||||
arg->bundle->ncp.ipcp.cfg.vj.slotcomp ? "with" : "without");
|
||||
|
||||
prompt_Printf(arg->prompt, "\n");
|
||||
throughput_disp(&arg->bundle->ncp.ipcp.throughput, arg->prompt);
|
||||
@ -233,12 +359,11 @@ ipcp_Init(struct ipcp *ipcp, struct bundle *bundle, struct link *l,
|
||||
iplist_setsrc(&ipcp->cfg.peer_list, "");
|
||||
ipcp->cfg.HaveTriggerAddress = 0;
|
||||
|
||||
#ifndef NOMSEXT
|
||||
ipcp->cfg.ns_entries[0].s_addr = INADDR_ANY;
|
||||
ipcp->cfg.ns_entries[1].s_addr = INADDR_ANY;
|
||||
ipcp->cfg.nbns_entries[0].s_addr = INADDR_ANY;
|
||||
ipcp->cfg.nbns_entries[1].s_addr = INADDR_ANY;
|
||||
#endif
|
||||
ipcp->cfg.ns.dns[0].s_addr = INADDR_ANY;
|
||||
ipcp->cfg.ns.dns[1].s_addr = INADDR_ANY;
|
||||
ipcp->cfg.ns.dns_neg = 0;
|
||||
ipcp->cfg.ns.nbns[0].s_addr = INADDR_ANY;
|
||||
ipcp->cfg.ns.nbns[1].s_addr = INADDR_ANY;
|
||||
|
||||
ipcp->cfg.fsmretry = DEF_FSMRETRY;
|
||||
ipcp->cfg.vj.neg = NEG_ENABLED|NEG_ACCEPTED;
|
||||
@ -424,7 +549,7 @@ IpcpSendConfigReq(struct fsm *fp)
|
||||
/* Send config REQ please */
|
||||
struct physical *p = link2physical(fp->link);
|
||||
struct ipcp *ipcp = fsm2ipcp(fp);
|
||||
u_char buff[12];
|
||||
u_char buff[24];
|
||||
struct lcp_opt *o;
|
||||
|
||||
o = (struct lcp_opt *)buff;
|
||||
@ -443,6 +568,17 @@ IpcpSendConfigReq(struct fsm *fp)
|
||||
INC_LCP_OPT(TY_COMPPROTO, 6, o);
|
||||
}
|
||||
|
||||
if (IsEnabled(ipcp->cfg.ns.dns_neg) &&
|
||||
!REJECTED(ipcp, TY_PRIMARY_DNS - TY_ADJUST_NS) &&
|
||||
!REJECTED(ipcp, TY_SECONDARY_DNS - TY_ADJUST_NS)) {
|
||||
struct in_addr dns[2];
|
||||
getdns(ipcp, dns);
|
||||
*(u_int32_t *)o->data = dns[0].s_addr;
|
||||
INC_LCP_OPT(TY_PRIMARY_DNS, 6, o);
|
||||
*(u_int32_t *)o->data = dns[1].s_addr;
|
||||
INC_LCP_OPT(TY_SECONDARY_DNS, 6, o);
|
||||
}
|
||||
|
||||
FsmOutput(fp, CODE_CONFIGREQ, fp->reqid, buff, (u_char *)o - buff);
|
||||
}
|
||||
|
||||
@ -608,8 +744,13 @@ IpcpDecodeConfig(struct fsm *fp, u_char * cp, int plen, int mode_type,
|
||||
int type, length;
|
||||
u_long *lp, compproto;
|
||||
struct compreq *pcomp;
|
||||
struct in_addr ipaddr, dstipaddr, dnsstuff, ms_info_req;
|
||||
struct in_addr ipaddr, dstipaddr, have_ip, dns[2], dnsnak[2];
|
||||
char tbuff[100], tbuff2[100];
|
||||
int gotdns, gotdnsnak;
|
||||
|
||||
gotdns = 0;
|
||||
gotdnsnak = 0;
|
||||
dnsnak[0].s_addr = dnsnak[1].s_addr = INADDR_ANY;
|
||||
|
||||
while (plen >= sizeof(struct fsmconfig)) {
|
||||
type = *cp;
|
||||
@ -785,85 +926,84 @@ IpcpDecodeConfig(struct fsm *fp, u_char * cp, int plen, int mode_type,
|
||||
}
|
||||
break;
|
||||
|
||||
/*
|
||||
* MS extensions for MS's PPP
|
||||
*/
|
||||
|
||||
#ifndef NOMSEXT
|
||||
case TY_PRIMARY_DNS: /* MS PPP DNS negotiation hack */
|
||||
case TY_PRIMARY_DNS: /* DNS negotiation (rfc1877) */
|
||||
case TY_SECONDARY_DNS:
|
||||
ipaddr.s_addr = *(u_int32_t *)(cp + 2);
|
||||
LogPrintf(LogIPCP, "%s %s\n", tbuff, inet_ntoa(ipaddr));
|
||||
|
||||
switch (mode_type) {
|
||||
case MODE_REQ:
|
||||
if (Enabled(ipcp->fsm.bundle, OPT_MSEXT)) {
|
||||
LogPrintf(LogIPCP, "MS NS req - rejected - msext disabled\n");
|
||||
ipcp->my_reject |= (1 << type);
|
||||
if (!IsAccepted(ipcp->cfg.ns.dns_neg)) {
|
||||
ipcp->my_reject |= (1 << (type - TY_ADJUST_NS));
|
||||
memcpy(dec->rejend, cp, length);
|
||||
dec->rejend += length;
|
||||
break;
|
||||
}
|
||||
lp = (u_long *) (cp + 2);
|
||||
dnsstuff.s_addr = *lp;
|
||||
ms_info_req.s_addr = ipcp->cfg.ns_entries
|
||||
[(type - TY_PRIMARY_DNS) ? 1 : 0].s_addr;
|
||||
if (dnsstuff.s_addr != ms_info_req.s_addr) {
|
||||
if (!gotdns) {
|
||||
dns[0] = ipcp->cfg.ns.dns[0];
|
||||
dns[1] = ipcp->cfg.ns.dns[1];
|
||||
if (dns[0].s_addr == INADDR_ANY && dns[1].s_addr == INADDR_ANY)
|
||||
getdns(ipcp, dns);
|
||||
gotdns = 1;
|
||||
}
|
||||
have_ip = dns[type == TY_PRIMARY_DNS ? 0 : 1];
|
||||
|
||||
if (ipaddr.s_addr != have_ip.s_addr) {
|
||||
/*
|
||||
* So the client has got the DNS stuff wrong (first request) so
|
||||
* The client has got the DNS stuff wrong (first request) so
|
||||
* we'll tell 'em how it is
|
||||
*/
|
||||
memcpy(dec->nakend, cp, 2); /* copy first two (type/length) */
|
||||
LogPrintf(LogIPCP, "MS NS req %d:%s->%s - nak\n",
|
||||
type, inet_ntoa(dnsstuff), inet_ntoa(ms_info_req));
|
||||
memcpy(dec->nakend+2, &ms_info_req, length);
|
||||
memcpy(dec->nakend + 2, &have_ip.s_addr, length - 2);
|
||||
dec->nakend += length;
|
||||
break;
|
||||
}
|
||||
|
||||
/*
|
||||
* Otherwise they have it right (this time) so we send a ack packet
|
||||
* back confirming it... end of story
|
||||
*/
|
||||
LogPrintf(LogIPCP, "MS NS req %d:%s ok - ack\n",
|
||||
type, inet_ntoa(ms_info_req));
|
||||
memcpy(dec->ackend, cp, length);
|
||||
dec->ackend += length;
|
||||
} else {
|
||||
/*
|
||||
* Otherwise they have it right (this time) so we send a ack packet
|
||||
* back confirming it... end of story
|
||||
*/
|
||||
memcpy(dec->ackend, cp, length);
|
||||
dec->ackend += length;
|
||||
}
|
||||
break;
|
||||
case MODE_NAK: /* what does this mean?? */
|
||||
LogPrintf(LogIPCP, "MS NS req %d - NAK??\n", type);
|
||||
if (IsEnabled(ipcp->cfg.ns.dns_neg)) {
|
||||
gotdnsnak = 1;
|
||||
dnsnak[type == TY_PRIMARY_DNS ? 0 : 1].s_addr =
|
||||
*(u_int32_t *)(cp + 2);
|
||||
}
|
||||
break;
|
||||
case MODE_REJ: /* confused?? me to :) */
|
||||
LogPrintf(LogIPCP, "MS NS req %d - REJ??\n", type);
|
||||
case MODE_REJ: /* Can't do much, stop asking */
|
||||
ipcp->peer_reject |= (1 << (type - TY_ADJUST_NS));
|
||||
break;
|
||||
}
|
||||
break;
|
||||
|
||||
case TY_PRIMARY_NBNS: /* MS PPP NetBIOS nameserver hack */
|
||||
case TY_PRIMARY_NBNS: /* M$ NetBIOS nameserver hack (rfc1877) */
|
||||
case TY_SECONDARY_NBNS:
|
||||
ipaddr.s_addr = *(u_int32_t *)(cp + 2);
|
||||
LogPrintf(LogIPCP, "%s %s\n", tbuff, inet_ntoa(ipaddr));
|
||||
|
||||
switch (mode_type) {
|
||||
case MODE_REQ:
|
||||
if (!Enabled(ipcp->fsm.bundle, OPT_MSEXT)) {
|
||||
LogPrintf(LogIPCP, "MS NBNS req - rejected - msext disabled\n");
|
||||
ipcp->my_reject |= (1 << type);
|
||||
have_ip.s_addr =
|
||||
ipcp->cfg.ns.nbns[type == TY_PRIMARY_NBNS ? 0 : 1].s_addr;
|
||||
|
||||
if (have_ip.s_addr == INADDR_ANY) {
|
||||
LogPrintf(LogIPCP, "NBNS REQ - rejected - nbns not set\n");
|
||||
ipcp->my_reject |= (1 << (type - TY_ADJUST_NS));
|
||||
memcpy(dec->rejend, cp, length);
|
||||
dec->rejend += length;
|
||||
break;
|
||||
}
|
||||
lp = (u_long *) (cp + 2);
|
||||
dnsstuff.s_addr = *lp;
|
||||
ms_info_req.s_addr = ipcp->cfg.nbns_entries
|
||||
[(type - TY_PRIMARY_NBNS) ? 1 : 0].s_addr;
|
||||
if (dnsstuff.s_addr != ms_info_req.s_addr) {
|
||||
|
||||
if (ipaddr.s_addr != have_ip.s_addr) {
|
||||
memcpy(dec->nakend, cp, 2);
|
||||
memcpy(dec->nakend+2, &ms_info_req.s_addr, length);
|
||||
LogPrintf(LogIPCP, "MS NBNS req %d:%s->%s - nak\n",
|
||||
type, inet_ntoa(dnsstuff), inet_ntoa(ms_info_req));
|
||||
memcpy(dec->nakend+2, &have_ip.s_addr, length);
|
||||
dec->nakend += length;
|
||||
break;
|
||||
}
|
||||
LogPrintf(LogIPCP, "MS NBNS req %d:%s ok - ack\n",
|
||||
type, inet_ntoa(ms_info_req));
|
||||
memcpy(dec->ackend, cp, length);
|
||||
dec->ackend += length;
|
||||
} else {
|
||||
memcpy(dec->ackend, cp, length);
|
||||
dec->ackend += length;
|
||||
}
|
||||
break;
|
||||
case MODE_NAK:
|
||||
LogPrintf(LogIPCP, "MS NBNS req %d - NAK??\n", type);
|
||||
@ -874,8 +1014,6 @@ IpcpDecodeConfig(struct fsm *fp, u_char * cp, int plen, int mode_type,
|
||||
}
|
||||
break;
|
||||
|
||||
#endif
|
||||
|
||||
default:
|
||||
if (mode_type != MODE_NOP) {
|
||||
ipcp->my_reject |= (1 << type);
|
||||
@ -888,6 +1026,12 @@ IpcpDecodeConfig(struct fsm *fp, u_char * cp, int plen, int mode_type,
|
||||
cp += length;
|
||||
}
|
||||
|
||||
if (gotdnsnak)
|
||||
if (!setdns(ipcp, dnsnak)) {
|
||||
ipcp->peer_reject |= (1 << (TY_PRIMARY_DNS - TY_ADJUST_NS));
|
||||
ipcp->peer_reject |= (1 << (TY_SECONDARY_DNS - TY_ADJUST_NS));
|
||||
}
|
||||
|
||||
if (mode_type != MODE_NOP)
|
||||
if (dec->rejend != dec->rej) {
|
||||
/* rejects are preferred */
|
||||
|
||||
@ -15,7 +15,7 @@
|
||||
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
|
||||
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
||||
*
|
||||
* $Id: ipcp.h,v 1.18.2.21 1998/04/10 13:19:09 brian Exp $
|
||||
* $Id: ipcp.h,v 1.18.2.22 1998/04/16 00:26:05 brian Exp $
|
||||
*
|
||||
* TODO:
|
||||
*/
|
||||
@ -32,6 +32,7 @@
|
||||
#define TY_PRIMARY_NBNS 130
|
||||
#define TY_SECONDARY_DNS 131
|
||||
#define TY_SECONDARY_NBNS 132
|
||||
#define TY_ADJUST_NS 119 /* subtract from NS val for REJECT bit */
|
||||
|
||||
struct in_range {
|
||||
struct in_addr ipaddr;
|
||||
@ -57,10 +58,12 @@ struct ipcp {
|
||||
struct in_addr TriggerAddress; /* Address to suggest in REQ */
|
||||
unsigned HaveTriggerAddress : 1; /* Trigger address specified */
|
||||
|
||||
#ifndef NOMSEXT
|
||||
struct in_addr ns_entries[2]; /* DNS addresses offered */
|
||||
struct in_addr nbns_entries[2]; /* NetBIOS NS addresses offered */
|
||||
#endif
|
||||
struct {
|
||||
struct in_addr dns[2]; /* DNS addresses offered */
|
||||
unsigned dns_neg : 2; /* dns negotiation */
|
||||
struct in_addr nbns[2]; /* NetBIOS NS addresses offered */
|
||||
} ns;
|
||||
|
||||
u_int fsmretry; /* FSM retry frequency */
|
||||
} cfg;
|
||||
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
.\" $Id: ppp.8,v 1.97.2.16 1998/04/16 00:26:15 brian Exp $
|
||||
.\" $Id: ppp.8,v 1.97.2.17 1998/04/16 18:30:54 brian Exp $
|
||||
.Dd 20 September 1995
|
||||
.Os FreeBSD
|
||||
.Dt PPP 8
|
||||
@ -753,16 +753,12 @@ and
|
||||
.Xr vipw 8
|
||||
for details.
|
||||
.It
|
||||
Optional support for Microsoft's IPCP Name Server and NetBIOS
|
||||
Name Server negotiation can be enabled use
|
||||
.Dq enable msext
|
||||
and
|
||||
.Dq set ns Ar pri-addr [sec-addr]
|
||||
along with
|
||||
.Dq set nbns Ar pri-addr [sec-addr]
|
||||
in your
|
||||
.Pa /etc/ppp/ppp.conf
|
||||
file.
|
||||
Support for IPCP Domain Name Server and NetBIOS Name Server negotiation
|
||||
can be enabled using the
|
||||
.Dq enable dns
|
||||
and
|
||||
.Dq set nbns
|
||||
commands. Refer to their descriptions below.
|
||||
.El
|
||||
.Pp
|
||||
.Sh RECEIVING INCOMING PPP CONNECTIONS (Method 2)
|
||||
@ -1740,6 +1736,27 @@ program. Refer to the
|
||||
.Ar deflate
|
||||
section above for details. It is disabled by default as it violates
|
||||
.Pa rfc1975 .
|
||||
.It dns
|
||||
Default: Enabled and Denied. This option allows DNS negotiation.
|
||||
.Pp
|
||||
If
|
||||
.Dq enable Ns No d,
|
||||
.Nm
|
||||
will request that the peer confirms the entries in
|
||||
.Pa /etc/resolv.conf .
|
||||
If the peer NAKs our request (suggesting new IP numbers),
|
||||
.Pa /etc/resolv.conf
|
||||
is updated and another request is sent to confirm the new entries.
|
||||
.Pp
|
||||
If
|
||||
.Dq accept Ns No ed,
|
||||
.Nm
|
||||
will answer any DNS queries requested by the peer rather than rejecting
|
||||
them. The answer is taken from
|
||||
.Pa /etc/resolv.conf
|
||||
unless the
|
||||
.Dq set dns
|
||||
command is used as an override.
|
||||
.It lqr
|
||||
Default: Disabled and Accepted. This option decides if Link Quality
|
||||
Requests will be sent or accepted. LQR is a protocol that allows
|
||||
@ -1835,14 +1852,6 @@ will send the packet, probably resulting in an ICMP redirect from
|
||||
the other end. It is convenient to have this option enabled when
|
||||
the interface is also the default route as it avoids the necessity
|
||||
of a loopback route.
|
||||
.It msext
|
||||
Default: Disabled. This option allows the use of Microsoft's
|
||||
.Em PPP
|
||||
extensions, supporting the negotiation of the DNS and the NetBIOS NS.
|
||||
Enabling this allows us to pass back the values given in
|
||||
.Dq set ns
|
||||
and
|
||||
.Dq set nbns .
|
||||
.It passwdauth
|
||||
Default: Disabled. Enabling this option will tell the PAP authentication
|
||||
code to use the password file (see
|
||||
@ -2235,6 +2244,14 @@ is specified,
|
||||
.Nm
|
||||
will insist that this window size is used and will not accept any other
|
||||
values from the peer.
|
||||
.It set dns Op Ar primary Op Ar secondary
|
||||
This command specifies DNS overrides for the
|
||||
.Dq accept dns
|
||||
command. Refer to the
|
||||
.Dq accept
|
||||
command description above for details. This command does not affect the
|
||||
IP numbers requested using
|
||||
.Dq enable dns .
|
||||
.It set device|line Ar value[,value...]
|
||||
This sets the device(s) to which
|
||||
.Nm
|
||||
@ -2567,16 +2584,11 @@ The default MTU is 1500. This may be increased by the MRU specified
|
||||
by the peer. It may only be subsequently decreased by this option.
|
||||
Increasing it is not valid as the peer is not necessarily able to
|
||||
receive the increased packet size.
|
||||
.It set nbns Ar x.x.x.x Op Ar y.y.y.y
|
||||
This option allows the setting of the Microsoft NetBIOS DNS servers that
|
||||
will be negotiated. It is only available in
|
||||
.Fl direct
|
||||
mode.
|
||||
.It set ns Ar x.x.x.x Op Ar y.y.y.y
|
||||
This option allows the setting of the Microsoft DNS servers that
|
||||
will be negotiated. It is only used in
|
||||
.Fl direct
|
||||
mode.
|
||||
.It set nbns Op Ar x.x.x.x Op Ar y.y.y.y
|
||||
This option allows the setting of the Microsoft NetBIOS name server
|
||||
values to be returned at the peers request. If no values are given,
|
||||
.Nm
|
||||
will reject any such requests.
|
||||
.It set openmode active|passive Op Ar delay
|
||||
By default,
|
||||
.Ar openmode
|
||||
@ -2779,8 +2791,6 @@ Show the current log values.
|
||||
Show current memory statistics.
|
||||
.It show modem
|
||||
Show current modem statistics.
|
||||
.It show msext
|
||||
Show the current Microsoft extension values.
|
||||
.It show proto
|
||||
Show current protocol totals.
|
||||
.It show route
|
||||
|
||||
Loading…
Reference in New Issue
Block a user