1 /**
2 * Copyright (c) 2023-2024 Marcin Niestroj
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #ifndef __DRIVERS_NET_NSOS_H__
8 #define __DRIVERS_NET_NSOS_H__
9
10 #include <stddef.h>
11 #include <stdint.h>
12
13 /* Protocol families. */
14 #define NSOS_MID_PF_UNSPEC 0 /**< Unspecified protocol family. */
15 #define NSOS_MID_PF_INET 1 /**< IP protocol family version 4. */
16 #define NSOS_MID_PF_INET6 2 /**< IP protocol family version 6. */
17
18 /* Address families. */
19 #define NSOS_MID_AF_UNSPEC NSOS_MID_PF_UNSPEC /**< Unspecified address family. */
20 #define NSOS_MID_AF_INET NSOS_MID_PF_INET /**< IP protocol family version 4. */
21 #define NSOS_MID_AF_INET6 NSOS_MID_PF_INET6 /**< IP protocol family version 6. */
22
23 /** Protocol numbers from IANA/BSD */
24 enum nsos_mid_net_ip_protocol {
25 NSOS_MID_IPPROTO_IP = 0, /**< IP protocol (pseudo-val for setsockopt() */
26 NSOS_MID_IPPROTO_ICMP = 1, /**< ICMP protocol */
27 NSOS_MID_IPPROTO_IGMP = 2, /**< IGMP protocol */
28 NSOS_MID_IPPROTO_IPIP = 4, /**< IPIP tunnels */
29 NSOS_MID_IPPROTO_TCP = 6, /**< TCP protocol */
30 NSOS_MID_IPPROTO_UDP = 17, /**< UDP protocol */
31 NSOS_MID_IPPROTO_IPV6 = 41, /**< IPv6 protocol */
32 NSOS_MID_IPPROTO_ICMPV6 = 58, /**< ICMPv6 protocol */
33 NSOS_MID_IPPROTO_RAW = 255, /**< RAW IP packets */
34 };
35
36 /** Socket type */
37 enum nsos_mid_net_sock_type {
38 NSOS_MID_SOCK_STREAM = 1, /**< Stream socket type */
39 NSOS_MID_SOCK_DGRAM, /**< Datagram socket type */
40 NSOS_MID_SOCK_RAW /**< RAW socket type */
41 };
42
43 #define NSOS_MID_MSG_PEEK 0x02
44 #define NSOS_MID_MSG_TRUNC 0x20
45 #define NSOS_MID_MSG_DONTWAIT 0x40
46 #define NSOS_MID_MSG_WAITALL 0x100
47
48 struct nsos_mid_sockaddr {
49 uint16_t sa_family; /* Address family */
50 char sa_data[]; /* Socket address */
51 };
52
53 struct nsos_mid_sockaddr_in {
54 uint16_t sin_family; /* AF_INET */
55 uint16_t sin_port; /* Port number */
56 uint32_t sin_addr; /* IPv4 address */
57 };
58
59 struct nsos_mid_sockaddr_in6 {
60 uint16_t sin6_family; /* AF_INET6 */
61 uint16_t sin6_port; /* Port number */
62 uint8_t sin6_addr[16];
63 uint32_t sin6_scope_id; /* Set of interfaces for a scope */
64 };
65
66 struct nsos_mid_sockaddr_storage {
67 union {
68 struct nsos_mid_sockaddr_in sockaddr_in;
69 struct nsos_mid_sockaddr_in6 sockaddr_in6;
70 };
71 };
72
73 struct nsos_mid_pollfd {
74 int fd;
75 short events;
76 short revents;
77
78 void (*cb)(struct nsos_mid_pollfd *pollfd_mid);
79 };
80
81 struct nsos_mid_addrinfo {
82 int ai_flags;
83 int ai_family;
84 int ai_socktype;
85 int ai_protocol;
86 size_t ai_addrlen;
87 struct nsos_mid_sockaddr *ai_addr;
88 char *ai_canonname;
89 struct nsos_mid_addrinfo *ai_next;
90 };
91
92 struct nsos_mid_iovec {
93 void *iov_base;
94 size_t iov_len;
95 };
96
97 struct nsos_mid_msghdr {
98 void *msg_name; /* optional socket address, big endian */
99 size_t msg_namelen; /* size of socket address */
100 struct nsos_mid_iovec *msg_iov; /* scatter/gather array */
101 size_t msg_iovlen; /* number of elements in msg_iov */
102 void *msg_control; /* ancillary data */
103 size_t msg_controllen; /* ancillary data buffer len */
104 int msg_flags; /* flags on received message */
105 };
106
nsos_socket_flag_convert(int * flags_a,int flag_a,int * flags_b,int flag_b)107 static inline void nsos_socket_flag_convert(int *flags_a, int flag_a,
108 int *flags_b, int flag_b)
109 {
110 if ((*flags_a) & flag_a) {
111 *flags_a &= ~flag_a;
112 *flags_b |= flag_b;
113 }
114 }
115
116 int nsos_adapt_get_errno(void);
117
118 int nsos_adapt_socket(int family, int type, int proto);
119
120 int nsos_adapt_bind(int fd, const struct nsos_mid_sockaddr *addr, size_t addrlen);
121 int nsos_adapt_connect(int fd, const struct nsos_mid_sockaddr *addr, size_t addrlen);
122 int nsos_adapt_listen(int fd, int backlog);
123 int nsos_adapt_accept(int fd, struct nsos_mid_sockaddr *addr, size_t *addrlen);
124 int nsos_adapt_sendto(int fd, const void *buf, size_t len, int flags,
125 const struct nsos_mid_sockaddr *addr, size_t addrlen);
126 int nsos_adapt_sendmsg(int fd, const struct nsos_mid_msghdr *msg_mid, int flags);
127 int nsos_adapt_recvfrom(int fd, void *buf, size_t len, int flags,
128 struct nsos_mid_sockaddr *addr, size_t *addrlen);
129 int nsos_adapt_getsockopt(int fd, int level, int optname,
130 void *optval, size_t *optlen);
131 int nsos_adapt_setsockopt(int fd, int level, int optname,
132 const void *optval, size_t optlen);
133
134 void nsos_adapt_poll_add(struct nsos_mid_pollfd *pollfd);
135 void nsos_adapt_poll_remove(struct nsos_mid_pollfd *pollfd);
136 void nsos_adapt_poll_update(struct nsos_mid_pollfd *pollfd);
137
138 int nsos_adapt_fcntl_getfl(int fd);
139 int nsos_adapt_fcntl_setfl(int fd, int flags);
140
141 int nsos_adapt_fionread(int fd, int *avail);
142
143 int nsos_adapt_dup(int oldfd);
144
145 int nsos_adapt_getaddrinfo(const char *node, const char *service,
146 const struct nsos_mid_addrinfo *hints,
147 struct nsos_mid_addrinfo **res,
148 int *system_errno);
149 void nsos_adapt_freeaddrinfo(struct nsos_mid_addrinfo *res);
150
151 #endif /* __DRIVERS_NET_NSOS_H__ */
152
