diff options
| -rw-r--r-- | include/libnetfilter_conntrack/libnetfilter_conntrack.h | 4 | ||||
| -rw-r--r-- | src/conntrack/api.c | 28 |
2 files changed, 32 insertions, 0 deletions
diff --git a/include/libnetfilter_conntrack/libnetfilter_conntrack.h b/include/libnetfilter_conntrack/libnetfilter_conntrack.h index 2fde9a8..0c8b715 100644 --- a/include/libnetfilter_conntrack/libnetfilter_conntrack.h +++ b/include/libnetfilter_conntrack/libnetfilter_conntrack.h @@ -273,6 +273,10 @@ extern u_int32_t nfct_get_attr_u32(const struct nf_conntrack *ct, extern int nfct_attr_is_set(const struct nf_conntrack *ct, const enum nf_conntrack_attr type); +extern int nfct_attr_is_set_array(const struct nf_conntrack *ct, + const enum nf_conntrack_attr *type_array, + int size); + /* unsetter */ extern int nfct_attr_unset(struct nf_conntrack *ct, const enum nf_conntrack_attr type); diff --git a/src/conntrack/api.c b/src/conntrack/api.c index efd298e..a5ddbc2 100644 --- a/src/conntrack/api.c +++ b/src/conntrack/api.c @@ -363,6 +363,34 @@ int nfct_attr_is_set(const struct nf_conntrack *ct, } /** + * nfct_attr_is_set_array - check if an array if attribute types is set + * @ct: pointer to a valid conntrack object + * @array: attribute type array + * @size: size of the array + * + * On error, -1 is returned and errno is set appropiately, otherwise + * the value of the attribute is returned. + */ +int nfct_attr_is_set_array(const struct nf_conntrack *ct, + const enum nf_conntrack_attr *type_array, + int size) +{ + int i; + + assert(ct != NULL); + + for (i=0; i<size; i++) { + if (unlikely(type_array[i] >= ATTR_MAX)) { + errno = EINVAL; + return -1; + } + if (!test_bit(type_array[i], ct->set)) + return 0; + } + return 1; +} + +/** * nfct_attr_unset - unset a certain attribute * @type: attribute type * @ct: pointer to a valid conntrack object |