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authorPat Ruddy <pat@voltanet.io>2021-02-14 12:09:55 +0000
committerPat Ruddy <pat@voltanet.io>2021-02-17 13:35:31 +0000
commit5a224c19f195c03275011b0b642b844182485334 (patch)
tree09dfbb7db61ece54fa7bdb596af91893c2fd3689
parent23b88a967da32cc719554e50187127a9cc6d5b42 (diff)
bgpd, lib: add oid2in6_addr utility and use it
The existing code was using the oid2in_addr API to copy IPv6 addresses passing an IPv6 length. Create a utility to do this properly and avoid annoying coverity with type checking. Signed-off-by: Pat Ruddy <pat@voltanet.io>
-rw-r--r--bgpd/bgp_mplsvpn_snmp.c6
-rw-r--r--lib/smux.h1
-rw-r--r--lib/snmp.c11
3 files changed, 14 insertions, 4 deletions
diff --git a/bgpd/bgp_mplsvpn_snmp.c b/bgpd/bgp_mplsvpn_snmp.c
index 7047607e5d..b74cf37ac7 100644
--- a/bgpd/bgp_mplsvpn_snmp.c
+++ b/bgpd/bgp_mplsvpn_snmp.c
@@ -1411,8 +1411,7 @@ static struct bgp_path_info *bgpL3vpnRte_lookup(struct variable *v, oid name[],
break;
case INETADDRESSTYPEIPV6:
prefix.family = AF_INET6;
- oid2in_addr(&name[i], sizeof(struct in6_addr),
- &prefix.u.prefix4); /* sic */
+ oid2in6_addr(&name[i], &prefix.u.prefix6);
i += sizeof(struct in6_addr);
break;
}
@@ -1434,8 +1433,7 @@ static struct bgp_path_info *bgpL3vpnRte_lookup(struct variable *v, oid name[],
break;
case INETADDRESSTYPEIPV6:
nexthop.ipa_type = IPADDR_V6;
- oid2in_addr(&name[i], sizeof(struct in6_addr),
- &nexthop.ip._v4_addr); /* sic */
+ oid2in6_addr(&name[i], &nexthop.ip._v6_addr);
/* i += sizeof(struct in6_addr); */
break;
}
diff --git a/lib/smux.h b/lib/smux.h
index e07df2369f..11c1becd60 100644
--- a/lib/smux.h
+++ b/lib/smux.h
@@ -143,6 +143,7 @@ extern int smux_trap_multi_index(struct variable *vp, size_t vp_len,
size_t trapobjlen, uint8_t sptrap);
extern int oid_compare(const oid *, int, const oid *, int);
extern void oid2in_addr(oid[], int, struct in_addr *);
+extern void oid2in6_addr(oid oid[], struct in6_addr *addr);
extern void oid2int(oid oid[], int *dest);
extern void *oid_copy(void *, const void *, size_t);
extern void oid_copy_addr(oid[], const struct in_addr *, int);
diff --git a/lib/snmp.c b/lib/snmp.c
index e92f622bb9..17a4ed4a1d 100644
--- a/lib/snmp.c
+++ b/lib/snmp.c
@@ -64,6 +64,17 @@ void oid2in_addr(oid oid[], int len, struct in_addr *addr)
*pnt++ = oid[i];
}
+void oid2in6_addr(oid oid[], struct in6_addr *addr)
+{
+ unsigned int i;
+ uint8_t *pnt;
+
+ pnt = (uint8_t *)addr;
+
+ for (i = 0; i < sizeof(struct in6_addr); i++)
+ *pnt++ = oid[i];
+}
+
void oid2int(oid oid[], int *dest)
{
uint8_t i;