pktgen: replace scan_ip6() with in6_pton()

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 47fe18e..d1dc14c 100644 (file)
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -449,8 +449,6 @@ static void pktgen_stop_all_threads_ifs(void);
 static void pktgen_stop(struct pktgen_thread *t);
 static void pktgen_clear_counters(struct pktgen_dev *pkt_dev);
 
-static unsigned int scan_ip6(const char *s, char ip[16]);
-
 /* Module parameters, defaults. */
 static int pg_count_d __read_mostly = 1000;
 static int pg_delay_d __read_mostly;
@@ -1299,7 +1297,7 @@ static ssize_t pktgen_if_write(struct file *file,
                        return -EFAULT;
                buf[len] = 0;
 
-               scan_ip6(buf, pkt_dev->in6_daddr.s6_addr);
+               in6_pton(buf, -1, pkt_dev->in6_daddr.s6_addr, -1, NULL);
                snprintf(buf, sizeof(buf), "%pI6c", &pkt_dev->in6_daddr);
 
                pkt_dev->cur_in6_daddr = pkt_dev->in6_daddr;
@@ -1322,7 +1320,7 @@ static ssize_t pktgen_if_write(struct file *file,
                        return -EFAULT;
                buf[len] = 0;
 
-               scan_ip6(buf, pkt_dev->min_in6_daddr.s6_addr);
+               in6_pton(buf, -1, pkt_dev->min_in6_daddr.s6_addr, -1, NULL);
                snprintf(buf, sizeof(buf), "%pI6c", &pkt_dev->min_in6_daddr);
 
                pkt_dev->cur_in6_daddr = pkt_dev->min_in6_daddr;
@@ -1344,7 +1342,7 @@ static ssize_t pktgen_if_write(struct file *file,
                        return -EFAULT;
                buf[len] = 0;
 
-               scan_ip6(buf, pkt_dev->max_in6_daddr.s6_addr);
+               in6_pton(buf, -1, pkt_dev->max_in6_daddr.s6_addr, -1, NULL);
                snprintf(buf, sizeof(buf), "%pI6c", &pkt_dev->max_in6_daddr);
 
                if (debug)
@@ -1365,7 +1363,7 @@ static ssize_t pktgen_if_write(struct file *file,
                        return -EFAULT;
                buf[len] = 0;
 
-               scan_ip6(buf, pkt_dev->in6_saddr.s6_addr);
+               in6_pton(buf, -1, pkt_dev->in6_saddr.s6_addr, -1, NULL);
                snprintf(buf, sizeof(buf), "%pI6c", &pkt_dev->in6_saddr);
 
                pkt_dev->cur_in6_saddr = pkt_dev->in6_saddr;
@@ -2765,97 +2763,6 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
        return skb;
 }
 
-/*
- * scan_ip6, fmt_ip taken from dietlibc-0.21
- * Author Felix von Leitner <felix-dietlibc@fefe.de>
- *
- * Slightly modified for kernel.
- * Should be candidate for net/ipv4/utils.c
- * --ro
- */
-
-static unsigned int scan_ip6(const char *s, char ip[16])
-{
-       unsigned int i;
-       unsigned int len = 0;
-       unsigned long u;
-       char suffix[16];
-       unsigned int prefixlen = 0;
-       unsigned int suffixlen = 0;
-       __be32 tmp;
-       char *pos;
-
-       for (i = 0; i < 16; i++)
-               ip[i] = 0;
-
-       for (;;) {
-               if (*s == ':') {
-                       len++;
-                       if (s[1] == ':') {      /* Found "::", skip to part 2 */
-                               s += 2;
-                               len++;
-                               break;
-                       }
-                       s++;
-               }
-
-               u = simple_strtoul(s, &pos, 16);
-               i = pos - s;
-               if (!i)
-                       return 0;
-               if (prefixlen == 12 && s[i] == '.') {
-
-                       /* the last 4 bytes may be written as IPv4 address */
-
-                       tmp = in_aton(s);
-                       memcpy((struct in_addr *)(ip + 12), &tmp, sizeof(tmp));
-                       return i + len;
-               }
-               ip[prefixlen++] = (u >> 8);
-               ip[prefixlen++] = (u & 255);
-               s += i;
-               len += i;
-               if (prefixlen == 16)
-                       return len;
-       }
-
-/* part 2, after "::" */
-       for (;;) {
-               if (*s == ':') {
-                       if (suffixlen == 0)
-                               break;
-                       s++;
-                       len++;
-               } else if (suffixlen != 0)
-                       break;
-
-               u = simple_strtol(s, &pos, 16);
-               i = pos - s;
-               if (!i) {
-                       if (*s)
-                               len--;
-                       break;
-               }
-               if (suffixlen + prefixlen <= 12 && s[i] == '.') {
-                       tmp = in_aton(s);
-                       memcpy((struct in_addr *)(suffix + suffixlen), &tmp,
-                              sizeof(tmp));
-                       suffixlen += 4;
-                       len += strlen(s);
-                       break;
-               }
-               suffix[suffixlen++] = (u >> 8);
-               suffix[suffixlen++] = (u & 255);
-               s += i;
-               len += i;
-               if (prefixlen + suffixlen == 16)
-                       break;
-       }
-       for (i = 0; i < suffixlen; i++)
-               ip[16 - suffixlen + i] = suffix[i];
-       return len;
-}
-
 static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
                                        struct pktgen_dev *pkt_dev)
 {