diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/libnetfilter_queue.c | 31 |
1 files changed, 17 insertions, 14 deletions
diff --git a/src/libnetfilter_queue.c b/src/libnetfilter_queue.c index 7e62317..7d0fb45 100644 --- a/src/libnetfilter_queue.c +++ b/src/libnetfilter_queue.c @@ -541,6 +541,8 @@ int nfq_handle_packet(struct nfq_handle *h, char *buf, int len) * - NFQNL_COPY_NONE - do not copy any data * - NFQNL_COPY_META - copy only packet metadata * - NFQNL_COPY_PACKET - copy entire packet + * + * \return -1 on error; >=0 otherwise. */ int nfq_set_mode(struct nfq_q_handle *qh, u_int8_t mode, u_int32_t range) @@ -571,6 +573,8 @@ int nfq_set_mode(struct nfq_q_handle *qh, * Sets the size of the queue in kernel. This fixes the maximum number * of packets the kernel will store before internally before dropping * upcoming packets. + * + * \return -1 on error; >=0 otherwise. */ int nfq_set_queue_maxlen(struct nfq_q_handle *qh, u_int32_t queuelen) @@ -670,6 +674,8 @@ static int __set_verdict(struct nfq_q_handle *qh, u_int32_t id, * Notifies netfilter of the userspace verdict for the given packet. Every * queued packet _must_ have a verdict specified by userspace, either by * calling this function, or by calling the nfq_set_verdict_mark() function. + * + * \return -1 on error; >= 0 otherwise. */ int nfq_set_verdict(struct nfq_q_handle *qh, u_int32_t id, u_int32_t verdict, u_int32_t data_len, @@ -699,10 +705,12 @@ int nfq_set_verdict2(struct nfq_q_handle *qh, u_int32_t id, * \param qh Netfilter queue handle obtained by call to nfq_create_queue(). * \param id ID assigned to packet by netfilter. * \param verdict verdict to return to netfilter (NF_ACCEPT, NF_DROP) - * \param mark mark to put on packet + * \param mark the mark to put on the packet, in network byte order. * \param data_len number of bytes of data pointed to by #buf * \param buf the buffer that contains the packet data * + * \return -1 on error; >= 0 otherwise. + * * This function is deprecated since it is broken, its use is highly * discouraged. Please, use nfq_set_verdict2 instead. */ @@ -848,11 +856,10 @@ u_int32_t nfq_get_physoutdev(struct nfq_data *nfad) * was received through * \param nlif_handle pointer to a nlif interface resolving handle * \param nfad Netlink packet data handle passed to callback function - * \param name pointer that will be set to the interface name string + * \param name pointer to the buffer to receive the interface name; + * not more than \c IFNAMSIZ bytes will be copied to it. * \return -1 in case of error, >0 if it succeed. * - * The #name variable will point to the name of the input interface. - * * To use a nlif_handle, You need first to call nlif_open() and to open * an handler. Don't forget to store the result as it will be used * during all your program life: @@ -894,10 +901,8 @@ int nfq_get_indev_name(struct nlif_handle *nlif_handle, * packet was received through * \param nlif_handle pointer to a nlif interface resolving handle * \param nfad Netlink packet data handle passed to callback function - * \param name pointer that will be set to the interface name string - * - * The #name variable will point to the name of the input physical - * interface. + * \param name pointer to the buffer to receive the interface name; + * not more than \c IFNAMSIZ bytes will be copied to it. * * See nfq_get_indev_name() documentation for nlif_handle usage. * @@ -915,9 +920,8 @@ int nfq_get_physindev_name(struct nlif_handle *nlif_handle, * packet will be sent to * \param nlif_handle pointer to a nlif interface resolving handle * \param nfad Netlink packet data handle passed to callback function - * \param name pointer that will be set to the interface name string - * - * The #name variable will point to the name of the output interface. + * \param name pointer to the buffer to receive the interface name; + * not more than \c IFNAMSIZ bytes will be copied to it. * * See nfq_get_indev_name() documentation for nlif_handle usage. * @@ -935,9 +939,8 @@ int nfq_get_outdev_name(struct nlif_handle *nlif_handle, * packet will be sent to * \param nlif_handle pointer to a nlif interface resolving handle * \param nfad Netlink packet data handle passed to callback function - * \param name pointer that will be set to the interface name string - * The #name variable will point to the name of the physical - * output interface. + * \param name pointer to the buffer to receive the interface name; + * not more than \c IFNAMSIZ bytes will be copied to it. * * See nfq_get_indev_name() documentation for nlif_handle usage. * |