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v19.07.3_mercusys_ac12_duma
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openwrt/package/br2684ctl/patches/101-routed_support.patch

301 lines
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--- a/br2684ctl.c
+++ b/br2684ctl.c
@@ -10,6 +10,10 @@
#include <atm.h>
#include <linux/atmdev.h>
#include <linux/atmbr2684.h>
+#ifndef BR2684_FLAG_ROUTED
+#warning "Kernel missing routed support for br2684"
+#define BR2684_FLAG_ROUTED (1<<16) /* payload is routed, not bridged */
+#endif
/* Written by Marcell GAL <cell@sch.bme.hu> to make use of the */
/* ioctls defined in the br2684... kernel patch */
@@ -28,26 +32,35 @@
#define LOG_OPTION LOG_PERROR|LOG_PID
#define LOG_FACILITY LOG_LOCAL2
+struct br2684_params {
+ int itfnum;
+ int encap;
+ int sndbuf;
+ int payload;
+ char *astr; /* temporary */
+ struct atm_qos reqqos;
+};
+
int lastsock, lastitf;
-void fatal(const char *str, int i)
+void fatal(const char *str, int err)
{
- syslog (LOG_ERR,"Fatal: %s",str);
+ syslog (LOG_ERR,"Fatal: %s; %s", str, strerror(err));
exit(-2);
};
void exitFunc(void)
{
- syslog (LOG_NOTICE,"Daemon terminated\n");
+ syslog (LOG_NOTICE,"Daemon terminated");
}
void int_signal(int dummy)
{
- syslog (LOG_INFO,"Killed by a signal\n");
+ syslog (LOG_INFO,"Killed by a signal");
exit(0);
}
@@ -58,7 +71,7 @@ int create_pidfile(int num)
if (num < 0) return -1;
- snprintf(name, 20, "/var/run/nas%d.pid", num);
+ snprintf(name, 32, "/var/run/br2684ctl-nas%d.pid", num);
pidfile = fopen(name, "w");
if (pidfile == NULL) return -1;
fprintf(pidfile, "%d", getpid());
@@ -67,9 +80,9 @@ int create_pidfile(int num)
return 0;
}
-int create_br(char *nstr)
+int create_br(int itfnum, int payload)
{
- int num, err;
+ int err;
if(lastsock<0) {
lastsock = socket(PF_ATMPVC, SOCK_DGRAM, ATM_AAL5);
@@ -78,31 +91,36 @@ int create_br(char *nstr)
syslog(LOG_ERR, "socket creation failed: %s",strerror(errno));
} else {
/* create the device with ioctl: */
- num=atoi(nstr);
- if( num>=0 && num<1234567890){
+ if( itfnum>=0 && itfnum<1234567890){
struct atm_newif_br2684 ni;
ni.backend_num = ATM_BACKEND_BR2684;
ni.media = BR2684_MEDIA_ETHERNET;
+#ifdef BR2684_FLAG_ROUTED
+ if (payload == 0)
+ ni.media |= BR2684_FLAG_ROUTED;
+#endif
ni.mtu = 1500;
- sprintf(ni.ifname, "nas%d", num);
+ sprintf(ni.ifname, "nas%d", itfnum);
err=ioctl (lastsock, ATM_NEWBACKENDIF, &ni);
if (err == 0)
- syslog(LOG_NOTICE, "Interface \"%s\" created sucessfully\n",ni.ifname);
+ syslog(LOG_NOTICE, "Interface \"%s\" created sucessfully",ni.ifname);
else
- syslog(LOG_INFO, "Interface \"%s\" could not be created, reason: %s\n",
+ syslog(LOG_INFO, "Interface \"%s\" could not be created, reason: %s",
ni.ifname,
strerror(errno));
- lastitf=num; /* even if we didn't create, because existed, assign_vcc wil want to know it! */
+ lastitf=itfnum; /* even if we didn't create, because existed,
+ assign_vcc wil want to know it! */
} else {
- syslog(LOG_ERR,"err: strange interface number %d", num );
+ syslog(LOG_ERR,"err: strange interface number %d", itfnum );
}
}
return 0;
}
-int assign_vcc(char *astr, int encap, int bufsize, struct atm_qos qos)
+int assign_vcc(char *astr, int encap, int payload,
+ int bufsize, struct atm_qos qos)
{
int err;
struct sockaddr_atmpvc addr;
@@ -112,21 +130,17 @@ int assign_vcc(char *astr, int encap, in
memset(&addr, 0, sizeof(addr));
err=text2atm(astr,(struct sockaddr *)(&addr), sizeof(addr), T2A_PVC);
if (err!=0)
- syslog(LOG_ERR,"Could not parse ATM parameters (error=%d)\n",err);
+ syslog(LOG_ERR,"Could not parse ATM parameters (error=%d)",err);
-#if 0
- addr.sap_family = AF_ATMPVC;
- addr.sap_addr.itf = itf;
- addr.sap_addr.vpi = 0;
- addr.sap_addr.vci = vci;
-#endif
- syslog(LOG_NOTICE,"Communicating over ATM %d.%d.%d, encapsulation: %s\n", addr.sap_addr.itf,
+ syslog(LOG_NOTICE,"Communicating over ATM %d.%d.%d, encapsulation: %s",
+ addr.sap_addr.itf,
addr.sap_addr.vpi,
addr.sap_addr.vci,
encap?"VC mux":"LLC");
if ((fd = socket(PF_ATMPVC, SOCK_DGRAM, ATM_AAL5)) < 0)
- syslog(LOG_ERR,"failed to create socket %d, reason: %s", errno,strerror(errno));
+ syslog(LOG_ERR,"failed to create socket %d, reason: %s",
+ errno,strerror(errno));
if (qos.aal == 0) {
qos.aal = ATM_AAL5;
@@ -137,7 +151,7 @@ int assign_vcc(char *astr, int encap, in
}
if ( (err=setsockopt(fd,SOL_SOCKET,SO_SNDBUF, &bufsize ,sizeof(bufsize))) )
- syslog(LOG_ERR,"setsockopt SO_SNDBUF: (%d) %s\n",err, strerror(err));
+ syslog(LOG_ERR,"setsockopt SO_SNDBUF: (%d) %s",err, strerror(err));
if (setsockopt(fd, SOL_ATM, SO_ATMQOS, &qos, sizeof(qos)) < 0)
syslog(LOG_ERR,"setsockopt SO_ATMQOS %d", errno);
@@ -145,7 +159,7 @@ int assign_vcc(char *astr, int encap, in
err = connect(fd, (struct sockaddr*)&addr, sizeof(struct sockaddr_atmpvc));
if (err < 0)
- fatal("failed to connect on socket", err);
+ fatal("failed to connect on socket", errno);
/* attach the vcc to device: */
@@ -169,10 +183,30 @@ int assign_vcc(char *astr, int encap, in
return fd ;
}
+void start_interface(struct br2684_params* params)
+{
+ if (params->astr==NULL) {
+ syslog(LOG_ERR, "Required ATM parameters not specified.");
+ exit(1);
+ }
+
+ create_br(params->itfnum, params->payload);
+ assign_vcc(params->astr, params->encap, params->payload, params->sndbuf,
+ params->reqqos);
+}
+
void usage(char *s)
{
- printf("usage: %s [-b] [[-c number] [-e 0|1] [-s sndbuf] [-q qos] [-a [itf.]vpi.vci]*]*\n", s);
+ printf("usage: %s [-b] [[-c number] [-e 0|1] [-s sndbuf] [-q qos] [-p 0|1] "
+ "[-a [itf.]vpi.vci]*]*\n"
+ " -b = run in background (daemonize)\n"
+ " -c <num> = use interface nas<num>\n"
+ " -e 0|1 = encapsulation (0=LLC, 1=VC Mux)\n"
+ " -p 0|1 = payload type (0=routed,1=bridged)\n"
+ " -s <num> = set sndbuf (send buffer) size (default 8192)\n"
+ " -a [itf.]vpi.vci = ATM interface no, VPI, VCI\n",
+ s);
exit(1);
}
@@ -180,47 +214,63 @@ void usage(char *s)
int main (int argc, char **argv)
{
- int c, background=0, encap=0, sndbuf=8192;
- struct atm_qos reqqos;
- int itfnum;
+ int c, background=0;
+
+ struct br2684_params params;
+ params.itfnum=-1;
+ params.encap=0;
+ params.sndbuf=8192;
+ params.payload=1;
+ params.astr=NULL;
+ memset(&params.reqqos, 0, sizeof(params.reqqos));
+
lastsock=-1;
lastitf=0;
/* st qos to 0 */
- memset(&reqqos, 0, sizeof(reqqos));
openlog (LOG_NAME,LOG_OPTION,LOG_FACILITY);
if (argc>1)
- while ((c = getopt(argc, argv,"q:a:bc:e:s:?h")) !=EOF)
+ while ((c = getopt(argc, argv,"q:a:bc:e:s:p:?h")) !=EOF)
switch (c) {
case 'q':
printf ("optarg : %s",optarg);
- if (text2qos(optarg,&reqqos,0)) fprintf(stderr,"QOS parameter invalid\n");
+ if (text2qos(optarg,&params.reqqos,0))
+ fprintf(stderr,"QOS parameter invalid\n");
break;
case 'a':
- assign_vcc(optarg, encap, sndbuf, reqqos);
+ params.astr=optarg;
break;
case 'b':
background=1;
break;
case 'c':
- create_br(optarg);
- itfnum = atoi(optarg);
+ /* temporary, to make it work with multiple interfaces: */
+ if (params.itfnum>=0) start_interface(&params);
+ params.itfnum= atoi(optarg);
break;
case 'e':
- encap=(atoi(optarg));
- if(encap<0){
- syslog (LOG_ERR, "invalid encapsulation: %s:\n",optarg);
- encap=0;
+ params.encap=(atoi(optarg));
+ if(params.encap<0){
+ syslog (LOG_ERR, "invalid encapsulation: %s:",optarg);
+ params.encap=0;
}
break;
case 's':
- sndbuf=(atoi(optarg));
- if(sndbuf<0){
- syslog(LOG_ERR, "Invalid sndbuf: %s, using size of 8192 instead\n",optarg);
- sndbuf=8192;
+ params.sndbuf=(atoi(optarg));
+ if(params.sndbuf<0){
+ syslog(LOG_ERR, "Invalid sndbuf: %s, using size of 8192 instead",
+ optarg);
+ params.sndbuf=8192;
}
break;
+ case 'p': /* payload type: routed (0) or bridged (1) */
+#ifdef BR2684_FLAG_ROUTED
+ params.payload = atoi(optarg);
+ break;
+#else
+ syslog(LOG_ERR, "payload option not supported.");
+#endif
case '?':
case 'h':
default:
@@ -231,6 +281,8 @@ int main (int argc, char **argv)
if (argc != optind) usage(argv[0]);
+ start_interface(&params);
+
if(lastsock>=0) close(lastsock);
if (background) {
@@ -268,11 +320,11 @@ int main (int argc, char **argv)
}
- create_pidfile(itfnum);
+ create_pidfile(params.itfnum);
signal(SIGINT, int_signal);
signal(SIGTERM, int_signal);
- syslog (LOG_INFO, "RFC 1483/2684 bridge daemon started\n");
+ syslog (LOG_INFO, "RFC 1483/2684 bridge daemon started");
atexit (exitFunc);
while (1) pause(); /* to keep the sockets... */
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