1 d7094239 2003-11-23 devnull #include <u.h>
  2 d7094239 2003-11-23 devnull #include <libc.h>
  3 d7094239 2003-11-23 devnull #include <ctype.h>
  4 d7094239 2003-11-23 devnull #include <ip.h>
  5 d7094239 2003-11-23 devnull 
  6 d7094239 2003-11-23 devnull static Ipifc**
  7 d7094239 2003-11-23 devnull _readoldipifc(char *buf, Ipifc **l, int index)
  8 d7094239 2003-11-23 devnull {
  9 d7094239 2003-11-23 devnull 	char *f[200];
 10 d7094239 2003-11-23 devnull 	int i, n;
 11 d7094239 2003-11-23 devnull 	Ipifc *ifc;
 12 d7094239 2003-11-23 devnull 	Iplifc *lifc, **ll;
 13 d7094239 2003-11-23 devnull 
 14 d7094239 2003-11-23 devnull 	/* allocate new interface */
 15 d7094239 2003-11-23 devnull 	*l = ifc = mallocz(sizeof(Ipifc), 1);
 16 d7094239 2003-11-23 devnull 	if(ifc == nil)
 17 d7094239 2003-11-23 devnull 		return l;
 18 d7094239 2003-11-23 devnull 	l = &ifc->next;
 19 d7094239 2003-11-23 devnull 	ifc->index = index;
 20 d7094239 2003-11-23 devnull 
 21 d7094239 2003-11-23 devnull 	n = tokenize(buf, f, nelem(f));
 22 d7094239 2003-11-23 devnull 	if(n < 2)
 23 d7094239 2003-11-23 devnull 		return l;
 24 d7094239 2003-11-23 devnull 
 25 d7094239 2003-11-23 devnull 	strncpy(ifc->dev, f[0], sizeof ifc->dev);
 26 d7094239 2003-11-23 devnull 	ifc->dev[sizeof(ifc->dev) - 1] = 0;
 27 d7094239 2003-11-23 devnull 	ifc->mtu = strtoul(f[1], nil, 10);
 28 d7094239 2003-11-23 devnull 
 29 d7094239 2003-11-23 devnull 	ll = &ifc->lifc;
 30 d7094239 2003-11-23 devnull 	for(i = 2; n-i >= 7; i += 7){
 31 d7094239 2003-11-23 devnull 		/* allocate new local address */
 32 d7094239 2003-11-23 devnull 		*ll = lifc = mallocz(sizeof(Iplifc), 1);
 33 d7094239 2003-11-23 devnull 		ll = &lifc->next;
 34 d7094239 2003-11-23 devnull 
 35 d7094239 2003-11-23 devnull 		parseip(lifc->ip, f[i]);
 36 d7094239 2003-11-23 devnull 		parseipmask(lifc->mask, f[i+1]);
 37 d7094239 2003-11-23 devnull 		parseip(lifc->net, f[i+2]);
 38 d7094239 2003-11-23 devnull 		ifc->pktin = strtoul(f[i+3], nil, 10);
 39 d7094239 2003-11-23 devnull 		ifc->pktout = strtoul(f[i+4], nil, 10);
 40 d7094239 2003-11-23 devnull 		ifc->errin = strtoul(f[i+5], nil, 10);
 41 d7094239 2003-11-23 devnull 		ifc->errout = strtoul(f[i+6], nil, 10);
 42 d7094239 2003-11-23 devnull 	}
 43 d7094239 2003-11-23 devnull 	return l;
 44 d7094239 2003-11-23 devnull }
 45 d7094239 2003-11-23 devnull 
 46 d7094239 2003-11-23 devnull static char*
 47 d7094239 2003-11-23 devnull findfield(char *name, char **f, int n)
 48 d7094239 2003-11-23 devnull {
 49 d7094239 2003-11-23 devnull 	int i;
 50 d7094239 2003-11-23 devnull 
 51 d7094239 2003-11-23 devnull 	for(i = 0; i < n-1; i++)
 52 d7094239 2003-11-23 devnull 		if(strcmp(f[i], name) == 0)
 53 d7094239 2003-11-23 devnull 			return f[i+1];
 54 d7094239 2003-11-23 devnull 	return "";
 55 d7094239 2003-11-23 devnull }
 56 d7094239 2003-11-23 devnull 
 57 d7094239 2003-11-23 devnull static Ipifc**
 58 d7094239 2003-11-23 devnull _readipifc(char *file, Ipifc **l, int index)
 59 d7094239 2003-11-23 devnull {
 60 d7094239 2003-11-23 devnull 	int i, n, fd, lines;
 61 d7094239 2003-11-23 devnull 	char buf[4*1024];
 62 d7094239 2003-11-23 devnull 	char *line[32];
 63 d7094239 2003-11-23 devnull 	char *f[64];
 64 d7094239 2003-11-23 devnull 	Ipifc *ifc;
 65 d7094239 2003-11-23 devnull 	Iplifc *lifc, **ll;
 66 d7094239 2003-11-23 devnull 
 67 d7094239 2003-11-23 devnull 	/* read the file */
 68 d7094239 2003-11-23 devnull 	fd = open(file, OREAD);
 69 d7094239 2003-11-23 devnull 	if(fd < 0)
 70 d7094239 2003-11-23 devnull 		return l;
 71 d7094239 2003-11-23 devnull 	n = 0;
 72 d7094239 2003-11-23 devnull 	while((i = read(fd, buf+n, sizeof(buf)-1-n)) > 0 && n < sizeof(buf) - 1)
 73 d7094239 2003-11-23 devnull 		n += i;
 74 d7094239 2003-11-23 devnull 	buf[n] = 0;
 75 d7094239 2003-11-23 devnull 	close(fd);
 76 d7094239 2003-11-23 devnull 
 77 d7094239 2003-11-23 devnull 	if(strncmp(buf, "device", 6) != 0)
 78 d7094239 2003-11-23 devnull 		return _readoldipifc(buf, l, index);
 79 d7094239 2003-11-23 devnull 
 80 d7094239 2003-11-23 devnull 	/* allocate new interface */
 81 d7094239 2003-11-23 devnull 	*l = ifc = mallocz(sizeof(Ipifc), 1);
 82 d7094239 2003-11-23 devnull 	if(ifc == nil)
 83 d7094239 2003-11-23 devnull 		return l;
 84 d7094239 2003-11-23 devnull 	l = &ifc->next;
 85 d7094239 2003-11-23 devnull 	ifc->index = index;
 86 d7094239 2003-11-23 devnull 
 87 d7094239 2003-11-23 devnull 	lines = getfields(buf, line, nelem(line), 1, "\n");
 88 d7094239 2003-11-23 devnull 
 89 d7094239 2003-11-23 devnull 	/* pick off device specific info(first line) */
 90 d7094239 2003-11-23 devnull 	n = tokenize(line[0], f, nelem(f));
 91 d7094239 2003-11-23 devnull 	strncpy(ifc->dev, findfield("device", f, n), sizeof(ifc->dev));
 92 d7094239 2003-11-23 devnull 	ifc->dev[sizeof(ifc->dev)-1] = 0;
 93 d7094239 2003-11-23 devnull 	if(ifc->dev[0] == 0){
 94 d7094239 2003-11-23 devnull 		free(ifc);
 95 d7094239 2003-11-23 devnull 		return l;
 96 d7094239 2003-11-23 devnull 	}
 97 d7094239 2003-11-23 devnull 	ifc->mtu = strtoul(findfield("maxmtu", f, n), nil, 10);
 98 d7094239 2003-11-23 devnull 	ifc->sendra6 = atoi(findfield("sendra", f, n));
 99 d7094239 2003-11-23 devnull 	ifc->recvra6 = atoi(findfield("recvra", f, n));
100 d7094239 2003-11-23 devnull 	ifc->rp.mflag = atoi(findfield("mflag", f, n));
101 d7094239 2003-11-23 devnull 	ifc->rp.oflag = atoi(findfield("oflag", f, n));
102 d7094239 2003-11-23 devnull 	ifc->rp.maxraint = atoi(findfield("maxraint", f, n));
103 d7094239 2003-11-23 devnull 	ifc->rp.minraint = atoi(findfield("minraint", f, n));
104 d7094239 2003-11-23 devnull 	ifc->rp.linkmtu = atoi(findfield("linkmtu", f, n));
105 d7094239 2003-11-23 devnull 	ifc->rp.reachtime = atoi(findfield("reachtime", f, n));
106 d7094239 2003-11-23 devnull 	ifc->rp.rxmitra = atoi(findfield("rxmitra", f, n));
107 d7094239 2003-11-23 devnull 	ifc->rp.ttl = atoi(findfield("ttl", f, n));
108 d7094239 2003-11-23 devnull 	ifc->rp.routerlt = atoi(findfield("routerlt", f, n));
109 d7094239 2003-11-23 devnull 	ifc->pktin = strtoul(findfield("pktin", f, n), nil, 10);
110 d7094239 2003-11-23 devnull 	ifc->pktout = strtoul(findfield("pktout", f, n), nil, 10);
111 d7094239 2003-11-23 devnull 	ifc->errin = strtoul(findfield("errin", f, n), nil, 10);
112 d7094239 2003-11-23 devnull 	ifc->errout = strtoul(findfield("errout", f, n), nil, 10);
113 d7094239 2003-11-23 devnull 	
114 d7094239 2003-11-23 devnull 	/* now read the addresses */
115 d7094239 2003-11-23 devnull 	ll = &ifc->lifc;
116 d7094239 2003-11-23 devnull 	for(i = 1; i < lines; i++){
117 d7094239 2003-11-23 devnull 		n = tokenize(line[i], f, nelem(f));
118 d7094239 2003-11-23 devnull 		if(n < 5)
119 d7094239 2003-11-23 devnull 			break;
120 d7094239 2003-11-23 devnull 
121 d7094239 2003-11-23 devnull 		/* allocate new local address */
122 d7094239 2003-11-23 devnull 		*ll = lifc = mallocz(sizeof(Iplifc), 1);
123 d7094239 2003-11-23 devnull 		ll = &lifc->next;
124 d7094239 2003-11-23 devnull 
125 d7094239 2003-11-23 devnull 		parseip(lifc->ip, f[0]);
126 d7094239 2003-11-23 devnull 		parseipmask(lifc->mask, f[1]);
127 d7094239 2003-11-23 devnull 		parseip(lifc->net, f[2]);
128 d7094239 2003-11-23 devnull 
129 d7094239 2003-11-23 devnull 		lifc->validlt = strtoul(f[3], nil, 10);
130 d7094239 2003-11-23 devnull 		lifc->preflt = strtoul(f[4], nil, 10);
131 d7094239 2003-11-23 devnull 	}
132 d7094239 2003-11-23 devnull 
133 d7094239 2003-11-23 devnull 	return l;
134 d7094239 2003-11-23 devnull }
135 d7094239 2003-11-23 devnull 
136 d7094239 2003-11-23 devnull static void
137 d7094239 2003-11-23 devnull _freeifc(Ipifc *ifc)
138 d7094239 2003-11-23 devnull {
139 d7094239 2003-11-23 devnull 	Ipifc *next;
140 d7094239 2003-11-23 devnull 	Iplifc *lnext, *lifc;
141 d7094239 2003-11-23 devnull 
142 d7094239 2003-11-23 devnull 	if(ifc == nil)
143 d7094239 2003-11-23 devnull 		return;
144 d7094239 2003-11-23 devnull 	for(; ifc; ifc = next){
145 d7094239 2003-11-23 devnull 		next = ifc->next;
146 d7094239 2003-11-23 devnull 		for(lifc = ifc->lifc; lifc; lifc = lnext){
147 d7094239 2003-11-23 devnull 			lnext = lifc->next;
148 d7094239 2003-11-23 devnull 			free(lifc);
149 d7094239 2003-11-23 devnull 		}
150 d7094239 2003-11-23 devnull 		free(ifc);
151 d7094239 2003-11-23 devnull 	}
152 d7094239 2003-11-23 devnull }
153 d7094239 2003-11-23 devnull 
154 d7094239 2003-11-23 devnull Ipifc*
155 d7094239 2003-11-23 devnull readipifc(char *net, Ipifc *ifc, int index)
156 d7094239 2003-11-23 devnull {
157 d7094239 2003-11-23 devnull 	int fd, i, n;
158 d7094239 2003-11-23 devnull 	Dir *dir;
159 d7094239 2003-11-23 devnull 	char directory[128];
160 d7094239 2003-11-23 devnull 	char buf[128];
161 d7094239 2003-11-23 devnull 	Ipifc **l;
162 d7094239 2003-11-23 devnull 
163 d7094239 2003-11-23 devnull 	_freeifc(ifc);
164 d7094239 2003-11-23 devnull 
165 d7094239 2003-11-23 devnull 	l = &ifc;
166 d7094239 2003-11-23 devnull 	ifc = nil;
167 d7094239 2003-11-23 devnull 
168 d7094239 2003-11-23 devnull 	if(net == 0)
169 d7094239 2003-11-23 devnull 		net = "/net";
170 d7094239 2003-11-23 devnull 	snprint(directory, sizeof(directory), "%s/ipifc", net);
171 d7094239 2003-11-23 devnull 
172 d7094239 2003-11-23 devnull 	if(index >= 0){
173 d7094239 2003-11-23 devnull 		snprint(buf, sizeof(buf), "%s/%d/status", directory, index);
174 d7094239 2003-11-23 devnull 		_readipifc(buf, l, index);
175 d7094239 2003-11-23 devnull 	} else {
176 d7094239 2003-11-23 devnull 		fd = open(directory, OREAD);
177 d7094239 2003-11-23 devnull 		if(fd < 0)
178 d7094239 2003-11-23 devnull 			return nil;
179 d7094239 2003-11-23 devnull 		n = dirreadall(fd, &dir);
180 d7094239 2003-11-23 devnull 		close(fd);
181 d7094239 2003-11-23 devnull 	
182 d7094239 2003-11-23 devnull 		for(i = 0; i < n; i++){
183 d7094239 2003-11-23 devnull 			if(strcmp(dir[i].name, "clone") == 0)
184 d7094239 2003-11-23 devnull 				continue;
185 d7094239 2003-11-23 devnull 			if(strcmp(dir[i].name, "stats") == 0)
186 d7094239 2003-11-23 devnull 				continue;
187 d7094239 2003-11-23 devnull 			snprint(buf, sizeof(buf), "%s/%s/status", directory, dir[i].name);
188 d7094239 2003-11-23 devnull 			l = _readipifc(buf, l, atoi(dir[i].name));
189 d7094239 2003-11-23 devnull 		}
190 d7094239 2003-11-23 devnull 		free(dir);
191 d7094239 2003-11-23 devnull 	}
192 d7094239 2003-11-23 devnull 
193 d7094239 2003-11-23 devnull 	return ifc;
194 d7094239 2003-11-23 devnull }