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72 lines
2.4 KiB
72 lines
2.4 KiB
/* |
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* IP common code |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public License |
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* as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with FFmpeg; if not, write to the Free Software * Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVFORMAT_IP_H |
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#define AVFORMAT_IP_H |
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#include "network.h" |
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/** |
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* Structure for storing IP (UDP) source filters or block lists. |
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*/ |
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typedef struct IPSourceFilters { |
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int nb_include_addrs; |
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int nb_exclude_addrs; |
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struct sockaddr_storage *include_addrs; |
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struct sockaddr_storage *exclude_addrs; |
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} IPSourceFilters; |
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/** |
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* Checks the source address against a given IP source filter. |
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* @return 0 if packet should be processed based on the filter, 1 if the packet |
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* can be dropped. |
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*/ |
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int ff_ip_check_source_lists(struct sockaddr_storage *source_addr_ptr, IPSourceFilters *s); |
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/** |
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* Resolves hostname into an addrinfo structure. |
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* @return addrinfo structure which should be freed by the user, NULL in case |
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* of error. |
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*/ |
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struct addrinfo *ff_ip_resolve_host(void *log_ctx, |
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const char *hostname, int port, |
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int type, int family, int flags); |
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/** |
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* Parses the address[,address] source list in buf and adds it to the filters |
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* in the IPSourceFilters structure. |
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* @return 0 on success, < 0 AVERROR code on error. |
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*/ |
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int ff_ip_parse_sources(void *log_ctx, const char *buf, IPSourceFilters *filters); |
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/** |
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* Parses the address[,address] source block list in buf and adds it to the |
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* filters in the IPSourceFilters structure. |
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* @return 0 on success, < 0 AVERROR code on error. |
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*/ |
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int ff_ip_parse_blocks(void *log_ctx, const char *buf, IPSourceFilters *filters); |
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/** |
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* Resets the IP filter list and frees the internal fields of an |
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* IPSourceFilters structure. |
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*/ |
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void ff_ip_reset_filters(IPSourceFilters *filters); |
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#endif /* AVFORMAT_IP_H */
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