#include <netinet6/ip6_var.h>
#include <netinet6/nd6.h>
-#define IN6_CGA_HASH1_LENGTH 8
-#define IN6_CGA_HASH2_LENGTH 14
-#define IN6_CGA_PREPARE_ZEROES 9
+#define IN6_CGA_HASH1_LENGTH 8
+#define IN6_CGA_HASH2_LENGTH 14
+#define IN6_CGA_PREPARE_ZEROES 9
struct in6_cga_hash1 {
u_int8_t octets[IN6_CGA_HASH1_LENGTH];
VERIFY(prepare != NULL);
VERIFY(pubkey != NULL && pubkey->iov_base != NULL);
- if (prepare->cga_security_level == 0)
- return (TRUE);
+ if (prepare->cga_security_level == 0) {
+ return TRUE;
+ }
- if (prepare->cga_security_level > 7)
- return (FALSE);
+ if (prepare->cga_security_level > 7) {
+ return FALSE;
+ }
SHA1Init(&ctx);
SHA1Update(&ctx, &prepare->cga_modifier.octets,
n = 2 * (u_int) prepare->cga_security_level;
VERIFY(n < SHA1_RESULTLEN);
- for (i = 0; i < n; ++i)
- if (sha1[i] != 0)
- return (FALSE);
+ for (i = 0; i < n; ++i) {
+ if (sha1[i] != 0) {
+ return FALSE;
+ }
+ }
- return (TRUE);
+ return TRUE;
}
/*
* @brief Generate interface identifier for CGA
- * XXX You may notice that following does not really
- * mirror what is decribed in:
- * https://tools.ietf.org/html/rfc3972#section-4
- * By design kernel here will assume that that
- * modifier has been converged on by userspace
- * for first part of the algorithm for the given
- * security level.
- * We are not doing that yet but that's how the code
- * below is written. So really we are starting
- * from bullet 4 of the algorithm.
+ * XXX You may notice that following does not really
+ * mirror what is decribed in:
+ * https://tools.ietf.org/html/rfc3972#section-4
+ * By design kernel here will assume that that
+ * modifier has been converged on by userspace
+ * for first part of the algorithm for the given
+ * security level.
+ * We are not doing that yet but that's how the code
+ * below is written. So really we are starting
+ * from bullet 4 of the algorithm.
*
* @param prepare Pointer to object containing modifier,
- * security level & externsion to be used.
+ * security level & externsion to be used.
* @param pubkey Public key used for IID generation
* @param collisions Collission count on DAD failure
- * XXX We are not really re-generating IID on DAD
- * failures for now.
+ * XXX We are not really re-generating IID on DAD
+ * failures for now.
* @param in6 Pointer to the address containing
- * the prefix.
+ * the prefix.
*
* @return void
*/
privkey = cfg->cga_privkey;
if (privkey.iov_base == NULL || privkey.iov_len == 0 ||
- privkey.iov_len >= IN6_CGA_KEY_MAXSIZE)
- return (EINVAL);
+ privkey.iov_len >= IN6_CGA_KEY_MAXSIZE) {
+ return EINVAL;
+ }
pubkey = cfg->cga_pubkey;
if (pubkey.iov_base == NULL || pubkey.iov_len == 0 ||
- pubkey.iov_len >= IN6_CGA_KEY_MAXSIZE)
- return (EINVAL);
+ pubkey.iov_len >= IN6_CGA_KEY_MAXSIZE) {
+ return EINVAL;
+ }
prepare = &cfg->cga_prepare;
- if (!in6_cga_is_prepare_valid(prepare, &pubkey))
- return (EINVAL);
+ if (!in6_cga_is_prepare_valid(prepare, &pubkey)) {
+ return EINVAL;
+ }
in6_cga.cga_prepare = *prepare;
MALLOC(privkeycopy, caddr_t, privkey.iov_len, M_IP6CGA, M_WAITOK);
- if (privkeycopy == NULL)
- return (ENOMEM);
+ if (privkeycopy == NULL) {
+ return ENOMEM;
+ }
MALLOC(pubkeycopy, caddr_t, pubkey.iov_len, M_IP6CGA, M_WAITOK);
if (pubkeycopy == NULL) {
- if (privkeycopy != NULL)
+ if (privkeycopy != NULL) {
FREE(privkeycopy, M_IP6CGA);
- return (ENOMEM);
+ }
+ return ENOMEM;
}
bcopy(privkey.iov_base, privkeycopy, privkey.iov_len);
privkey.iov_base = privkeycopy;
- if (in6_cga.cga_privkey.iov_base != NULL)
+ if (in6_cga.cga_privkey.iov_base != NULL) {
FREE(in6_cga.cga_privkey.iov_base, M_IP6CGA);
+ }
in6_cga.cga_privkey = privkey;
bcopy(pubkey.iov_base, pubkeycopy, pubkey.iov_len);
pubkey.iov_base = pubkeycopy;
- if (in6_cga.cga_pubkey.iov_base != NULL)
+ if (in6_cga.cga_pubkey.iov_base != NULL) {
FREE(in6_cga.cga_pubkey.iov_base, M_IP6CGA);
+ }
in6_cga.cga_pubkey = pubkey;
- return (0);
+ return 0;
}
int
in6_cga.cga_pubkey.iov_len = 0;
}
- return (0);
+ return 0;
}
ssize_t
if (in6_cga.cga_pubkey.iov_len == 0) {
/* No public key */
- return (EINVAL);
+ return EINVAL;
}
if (output == NULL ||
- max < in6_cga.cga_pubkey.iov_len + sizeof (modifier->octets) + 9) {
+ max < in6_cga.cga_pubkey.iov_len + sizeof(modifier->octets) + 9) {
/* Output buffer error */
- return (EINVAL);
+ return EINVAL;
}
cursor = output;
- if (modifier == NULL) modifier = &in6_cga.cga_prepare.cga_modifier;
+ if (modifier == NULL) {
+ modifier = &in6_cga.cga_prepare.cga_modifier;
+ }
if (prefix == NULL) {
static const struct in6_addr llprefix = {{{ 0xfe, 0x80 }}};
prefix = &llprefix;
}
- bcopy(&modifier->octets, cursor, sizeof (modifier->octets));
- cursor += sizeof (modifier->octets);
+ bcopy(&modifier->octets, cursor, sizeof(modifier->octets));
+ cursor += sizeof(modifier->octets);
*cursor++ = (char) collisions;
/* FUTURE: Extension fields */
- return ((ssize_t)(cursor - (caddr_t)output));
+ return (ssize_t)(cursor - (caddr_t)output);
}
int
in6_cga_node_lock_assert(LCK_MTX_ASSERT_OWNED);
VERIFY(in6 != NULL);
- if (prepare == NULL)
+ if (prepare == NULL) {
prepare = &in6_cga.cga_prepare;
- else
+ } else {
prepare->cga_security_level =
in6_cga.cga_prepare.cga_security_level;
+ }
pubkey = &in6_cga.cga_pubkey;
if (pubkey->iov_base != NULL) {
in6_cga_generate_iid(prepare, pubkey, collisions, in6);
error = 0;
- }
- else
+ } else {
error = EADDRNOTAVAIL;
+ }
- return (error);
+ return error;
}
/* End of file */
projects / apple / xnu.git / blobdiff