1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2022 Felix Fietkau <nbd@nbd.name>
5 #ifndef __UNETD_UTILS_H
6 #define __UNETD_UTILS_H
8 #include <netinet/in.h>
14 uint8_t network_id
[8];
21 union network_endpoint
{
23 struct sockaddr_in in
;
24 struct sockaddr_in6 in6
;
28 network_endpoint_addr(union network_endpoint
*ep
, int *addr_len
)
30 if (ep
->sa
.sa_family
== AF_INET6
) {
31 *addr_len
= sizeof(ep
->in6
.sin6_addr
);
32 return &ep
->in6
.sin6_addr
;
35 *addr_len
= sizeof(ep
->in
.sin_addr
);
36 return &ep
->in
.sin_addr
;
40 network_endpoint_addr_equal(union network_endpoint
*ep1
, union network_endpoint
*ep2
)
45 if (ep1
->sa
.sa_family
!= ep2
->sa
.sa_family
)
48 a1
= network_endpoint_addr(ep1
, &len
);
49 a2
= network_endpoint_addr(ep2
, &len
);
51 return !memcmp(a1
, a2
, len
);
54 int network_get_endpoint(union network_endpoint
*dest
, const char *str
,
55 int default_port
, int idx
);
56 int network_get_subnet(int af
, union network_addr
*addr
, int *mask
,
58 int network_get_local_addr(void *local
, const union network_endpoint
*target
);
60 #define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
62 #define bitmask_size(len) (4 * DIV_ROUND_UP(len, 32))
64 static inline bool bitmask_test(uint32_t *mask
, unsigned int i
)
66 return mask
[i
/ 32] & (1 << (i
% 32));
69 static inline void bitmask_set(uint32_t *mask
, unsigned int i
)
71 mask
[i
/ 32] |= 1 << (i
% 32);
74 static inline void bitmask_clear(uint32_t *mask
, unsigned int i
)
76 mask
[i
/ 32] &= ~(1 << (i
% 32));
79 static inline void bitmask_set_val(uint32_t *mask
, unsigned int i
, bool val
)
84 bitmask_clear(mask
, i
);
88 int rtnl_call(struct nl_msg
*msg
);