118 lines
3.8 KiB
C
118 lines
3.8 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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* Copyright (C) NGINX, Inc.
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*/
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#ifndef _NXT_SOCKADDR_H_INCLUDED_
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#define _NXT_SOCKADDR_H_INCLUDED_
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/*
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* The nxt_sockaddr_t should be allocated using nxt_sockaddr_alloc()
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* with actual "struct sockaddr_..." size:
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* nxt_sockaddr_alloc(pool, sizeof(struct sockaddr_in))
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*/
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/*
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* A textual sockaddr representation is stored after struct sockaddr union
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* and allocated as a whole.
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*/
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struct nxt_sockaddr_s {
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/* Socket type: SOCKS_STREAM, SOCK_DGRAM, etc. */
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uint8_t type;
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/* Size of struct sockaddr. */
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uint8_t socklen;
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/*
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* Textual sockaddr representation, e.g.: "127.0.0.1:8000",
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* "[::1]:8000", and "unix:/path/to/socket".
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*/
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uint8_t start;
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uint8_t length;
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/*
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* Textual address representation, e.g: "127.0.0.1", "::1",
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* and "unix:/path/to/socket".
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*/
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uint8_t address_start;
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uint8_t address_length;
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/*
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* Textual port representation, e.g. "8000".
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* Port length is (start + length) - port_start.
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*/
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uint8_t port_start;
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/* A cache hist used to place sockaddr into appropriate free list. */
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uint8_t cache_hint;
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union {
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struct sockaddr sockaddr;
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struct sockaddr_in sockaddr_in;
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#if (NXT_INET6)
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struct sockaddr_in6 sockaddr_in6;
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#endif
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#if (NXT_HAVE_UNIX_DOMAIN)
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struct sockaddr_un sockaddr_un;
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#endif
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} u;
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};
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typedef struct {
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nxt_job_resolve_t resolve;
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nxt_str_t addr;
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uint8_t wildcard; /* 1 bit */
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uint8_t no_port; /* 1 bit */
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} nxt_job_sockaddr_parse_t;
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nxt_sockaddr_t *nxt_sockaddr_cache_alloc(nxt_event_engine_t *engine,
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nxt_listen_socket_t *ls);
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void nxt_sockaddr_cache_free(nxt_event_engine_t *engine, nxt_conn_t *c);
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NXT_EXPORT nxt_sockaddr_t *nxt_sockaddr_alloc(nxt_mp_t *mp, socklen_t socklen,
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size_t address_length)
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NXT_MALLOC_LIKE;
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NXT_EXPORT nxt_sockaddr_t *nxt_sockaddr_create(nxt_mp_t *mp,
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struct sockaddr *sockaddr, socklen_t socklen, size_t address_length)
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NXT_MALLOC_LIKE;
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NXT_EXPORT nxt_sockaddr_t *nxt_sockaddr_copy(nxt_mp_t *mp, nxt_sockaddr_t *src)
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NXT_MALLOC_LIKE;
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NXT_EXPORT nxt_sockaddr_t *nxt_getsockname(nxt_task_t *task, nxt_mp_t *mp,
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nxt_socket_t s)
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NXT_MALLOC_LIKE;
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NXT_EXPORT void nxt_sockaddr_text(nxt_sockaddr_t *sa);
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NXT_EXPORT uint32_t nxt_sockaddr_port_number(nxt_sockaddr_t *sa);
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NXT_EXPORT nxt_bool_t nxt_sockaddr_cmp(nxt_sockaddr_t *sa1,
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nxt_sockaddr_t *sa2);
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NXT_EXPORT size_t nxt_sockaddr_ntop(nxt_sockaddr_t *sa, u_char *buf,
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u_char *end, nxt_bool_t port);
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NXT_EXPORT nxt_sockaddr_t *nxt_sockaddr_parse(nxt_mp_t *mp, nxt_str_t *addr);
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NXT_EXPORT void nxt_job_sockaddr_parse(nxt_job_sockaddr_parse_t *jbs);
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NXT_EXPORT in_addr_t nxt_inet_addr(u_char *buf, size_t len);
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#if (NXT_INET6)
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NXT_EXPORT nxt_int_t nxt_inet6_addr(struct in6_addr *in6_addr, u_char *buf,
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size_t len);
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#endif
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#define NXT_INET_ADDR_STR_LEN (sizeof("255.255.255.255:65535") - 1)
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#define NXT_INET6_ADDR_STR_LEN \
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(sizeof("[ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]:65535") - 1)
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#define nxt_sockaddr_size(sa) \
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(offsetof(nxt_sockaddr_t, u) + sa->socklen + sa->length)
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#define nxt_sockaddr_start(sa) nxt_pointer_to(sa, (sa)->start)
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#define nxt_sockaddr_address(sa) nxt_pointer_to(sa, (sa)->address_start)
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#define nxt_sockaddr_port(sa) nxt_pointer_to(sa, (sa)->port_start)
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#define nxt_sockaddr_port_length(sa) \
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(((sa)->start + (sa)->length) - (sa)->port_start)
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#endif /* _NXT_SOCKADDR_H_INCLUDED_ */
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