RFC 7217: installer support [8/8]

[Florian Obser]

OK?

diff --git distrib/miniroot/install.sub distrib/miniroot/install.sub
index 26cecd81cbc..52360686b38 100644
--- distrib/miniroot/install.sub
+++ distrib/miniroot/install.sub
@@ -2988,6 +2988,9 @@ do_upgrade() {
        hostname $(stripcom /tmp/i/myname)
        THESETS="$THESETS site$VERSION-$(hostname -s).tgz"
 
+       _f=/mnt/etc/soii.key
+       [[ -f $_f ]] && sysctl net.inet6.ip6.soiikey=$(<$_f)
+
        # Configure the network.
        enable_network
 
diff --git distrib/special/sysctl/sysctl.c distrib/special/sysctl/sysctl.c
index 6f3e333ac21..8c2ac6e69f4 100644
--- distrib/special/sysctl/sysctl.c
+++ distrib/special/sysctl/sysctl.c
@@ -18,14 +18,19 @@
  */
 
 #include <sys/types.h>
+#include <sys/socket.h>
 #include <sys/sysctl.h>
 #include <sys/uio.h>
 
+#include <netinet/in.h>
+
 #include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
+#define SOIIKEY_LEN 16
+
 struct var {
        char *name;
        int (*print)(struct var *);
@@ -87,6 +92,39 @@ pstring(struct var *v)
 }
 
 int
+parse_hex_char(char ch)
+{
+       if (ch >= '0' && ch <= '9')
+               return (ch - '0');
+       if (ch >= 'a' && ch <= 'f')
+               return (ch - 'a' + 10);
+       if (ch >= 'A' && ch <= 'F')
+               return (ch - 'A' + 10);
+
+       return (-1);
+}
+
+int
+set_soii_key(char *src)
+{
+       uint8_t key[SOIIKEY_LEN];
+       int mib[4] = {CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_SOIIKEY};
+       int i, c;
+
+       for(i = 0; i < SOIIKEY_LEN; i++) {
+               if ((c = parse_hex_char(src[2 * i])) == -1)
+                       return (-1);
+               key[i] = c << 4;
+               if ((c = parse_hex_char(src[2 * i + 1])) == -1)
+                       return (-1);
+               key[i] |= c;
+       }
+       
+       return sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, NULL, key,
+           SOIIKEY_LEN);
+}
+
+int
 main(int argc, char *argv[])
 {
        int ch, i;
@@ -113,6 +151,16 @@ main(int argc, char *argv[])
 
        while (argc--) {
                name = *argv++;
+               /* 
+                * strlen("net.inet6.ip6.soiikey="
+                *     "00000000000000000000000000000000") == 54
+                * strlen("net.inet6.ip6.soiikey=") == 22
+                */
+               if (strlen(name) == 54 && strncmp(name,
+                   "net.inet6.ip6.soiikey=", 22) == 0) {
+                       set_soii_key(name + 22);
+                       continue;
+               }
 
                for (i = 0; i < sizeof(vars)/sizeof(vars[0]); i++) {
                        if (strcmp(name, vars[i].name) == 0) {
-- 
2.13.0


-- 
I'm not entirely sure you are real.