/*
- * Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2013 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
/* Appending attributes. */
void *nl_msg_put_unspec_uninit(struct ofpbuf *, uint16_t type, size_t);
+void *nl_msg_put_unspec_zero(struct ofpbuf *, uint16_t type, size_t);
void nl_msg_put_unspec(struct ofpbuf *, uint16_t type, const void *, size_t);
void nl_msg_put_flag(struct ofpbuf *, uint16_t type);
void nl_msg_put_u8(struct ofpbuf *, uint16_t type, uint8_t value);
void nl_msg_put_be16(struct ofpbuf *, uint16_t type, ovs_be16 value);
void nl_msg_put_be32(struct ofpbuf *, uint16_t type, ovs_be32 value);
void nl_msg_put_be64(struct ofpbuf *, uint16_t type, ovs_be64 value);
+void nl_msg_put_odp_port(struct ofpbuf *, uint16_t type, odp_port_t value);
void nl_msg_put_string(struct ofpbuf *, uint16_t type, const char *value);
size_t nl_msg_start_nested(struct ofpbuf *, uint16_t type);
#define NL_A_BE32_SIZE NL_ATTR_SIZE(sizeof(ovs_be32))
#define NL_A_BE64_SIZE NL_ATTR_SIZE(sizeof(ovs_be64))
#define NL_A_FLAG_SIZE NL_ATTR_SIZE(0)
+
+bool nl_attr_oversized(size_t payload_size);
\f
/* Netlink attribute types. */
enum nl_attr_type
{
return (maxlen >= sizeof *nla
&& nla->nla_len >= sizeof *nla
- && NLA_ALIGN(nla->nla_len) <= maxlen);
+ && nla->nla_len <= maxlen);
+}
+
+static inline size_t
+nl_attr_len_pad(const struct nlattr *nla, size_t maxlen)
+{
+ size_t len = NLA_ALIGN(nla->nla_len);
+
+ return len <= maxlen ? len : nla->nla_len;
}
/* This macro is careful to check for attributes with bad lengths. */
#define NL_ATTR_FOR_EACH(ITER, LEFT, ATTRS, ATTRS_LEN) \
for ((ITER) = (ATTRS), (LEFT) = (ATTRS_LEN); \
nl_attr_is_valid(ITER, LEFT); \
- (LEFT) -= NLA_ALIGN((ITER)->nla_len), (ITER) = nl_attr_next(ITER))
+ (LEFT) -= nl_attr_len_pad(ITER, LEFT), (ITER) = nl_attr_next(ITER))
/* This macro does not check for attributes with bad lengths. It should only
#define NL_ATTR_FOR_EACH_UNSAFE(ITER, LEFT, ATTRS, ATTRS_LEN) \
for ((ITER) = (ATTRS), (LEFT) = (ATTRS_LEN); \
(LEFT) > 0; \
- (LEFT) -= NLA_ALIGN((ITER)->nla_len), (ITER) = nl_attr_next(ITER))
+ (LEFT) -= nl_attr_len_pad(ITER, LEFT), (ITER) = nl_attr_next(ITER))
/* These variants are convenient for iterating nested attributes. */
#define NL_NESTED_FOR_EACH(ITER, LEFT, A) \
ovs_be16 nl_attr_get_be16(const struct nlattr *);
ovs_be32 nl_attr_get_be32(const struct nlattr *);
ovs_be64 nl_attr_get_be64(const struct nlattr *);
+odp_port_t nl_attr_get_odp_port(const struct nlattr *);
const char *nl_attr_get_string(const struct nlattr *);
void nl_attr_get_nested(const struct nlattr *, struct ofpbuf *);
#define NL_POLICY_FOR(TYPE) \
.type = NL_A_UNSPEC, .min_len = sizeof(TYPE), .max_len = sizeof(TYPE)
+bool nl_attr_validate(const struct nlattr *, const struct nl_policy *);
+
bool nl_policy_parse(const struct ofpbuf *, size_t offset,
const struct nl_policy[],
struct nlattr *[], size_t n_attrs);