Commit | Line | Data |
---|---|---|
f4d55810 | 1 | /* raw_cb.c 4.16 83/02/10 */ |
785d93ac BJ |
2 | |
3 | #include "../h/param.h" | |
4 | #include "../h/systm.h" | |
5 | #include "../h/mbuf.h" | |
6 | #include "../h/socket.h" | |
7 | #include "../h/socketvar.h" | |
f4d55810 SL |
8 | #include "../h/errno.h" |
9 | ||
785d93ac BJ |
10 | #include "../net/if.h" |
11 | #include "../net/raw_cb.h" | |
f4d55810 SL |
12 | |
13 | #include "../vax/mtpr.h" | |
785d93ac BJ |
14 | |
15 | /* | |
16 | * Routines to manage the raw protocol control blocks. | |
17 | * | |
18 | * TODO: | |
19 | * hash lookups by protocol family/protocol + address family | |
ee787340 | 20 | * take care of unique address problems per AF? |
1e25d807 | 21 | * redo address binding to allow wildcards |
785d93ac BJ |
22 | */ |
23 | ||
24 | /* | |
25 | * Allocate a control block and a nominal amount | |
26 | * of buffer space for the socket. | |
27 | */ | |
14fa60f2 | 28 | raw_attach(so) |
785d93ac | 29 | register struct socket *so; |
785d93ac BJ |
30 | { |
31 | struct mbuf *m; | |
32 | register struct rawcb *rp; | |
785d93ac | 33 | |
cce93e4b | 34 | m = m_getclr(M_DONTWAIT, MT_PCB); |
785d93ac BJ |
35 | if (m == 0) |
36 | return (ENOBUFS); | |
37 | if (sbreserve(&so->so_snd, RAWSNDQ) == 0) | |
38 | goto bad; | |
39 | if (sbreserve(&so->so_rcv, RAWRCVQ) == 0) | |
40 | goto bad2; | |
41 | rp = mtod(m, struct rawcb *); | |
42 | rp->rcb_socket = so; | |
43 | insque(rp, &rawcb); | |
44 | so->so_pcb = (caddr_t)rp; | |
45 | rp->rcb_pcb = 0; | |
785d93ac BJ |
46 | return (0); |
47 | bad2: | |
48 | sbrelease(&so->so_snd); | |
49 | bad: | |
50 | (void) m_free(m); | |
51 | return (ENOBUFS); | |
52 | } | |
53 | ||
54 | /* | |
55 | * Detach the raw connection block and discard | |
56 | * socket resources. | |
57 | */ | |
58 | raw_detach(rp) | |
59 | register struct rawcb *rp; | |
60 | { | |
61 | struct socket *so = rp->rcb_socket; | |
62 | ||
785d93ac BJ |
63 | so->so_pcb = 0; |
64 | sofree(so); | |
65 | remque(rp); | |
4053be18 | 66 | m_freem(dtom(rp)); |
785d93ac BJ |
67 | } |
68 | ||
69 | /* | |
70 | * Disconnect and possibly release resources. | |
71 | */ | |
72 | raw_disconnect(rp) | |
73 | struct rawcb *rp; | |
74 | { | |
4053be18 | 75 | |
126472ab | 76 | rp->rcb_flags &= ~RAW_FADDR; |
f832270b | 77 | if (rp->rcb_socket->so_state & SS_NOFDREF) |
785d93ac BJ |
78 | raw_detach(rp); |
79 | } | |
80 | ||
14fa60f2 BJ |
81 | raw_bind(so, nam) |
82 | register struct socket *so; | |
83 | struct mbuf *nam; | |
84 | { | |
85 | struct sockaddr *addr = mtod(nam, struct sockaddr *); | |
14fa60f2 BJ |
86 | register struct rawcb *rp; |
87 | ||
88 | if (ifnet == 0) | |
89 | return (EADDRNOTAVAIL); | |
90 | { | |
af0b24db | 91 | #include "../h/domain.h" |
14fa60f2 BJ |
92 | #include "../netinet/in.h" |
93 | #include "../netinet/in_systm.h" | |
94 | /* BEGIN DUBIOUS */ | |
95 | /* | |
96 | * Should we verify address not already in use? | |
97 | * Some say yes, others no. | |
98 | */ | |
99 | switch (addr->sa_family) { | |
100 | ||
101 | case AF_IMPLINK: | |
102 | case AF_INET: | |
103 | if (((struct sockaddr_in *)addr)->sin_addr.s_addr && | |
104 | if_ifwithaddr(addr) == 0) | |
105 | return (EADDRNOTAVAIL); | |
106 | break; | |
107 | ||
108 | #ifdef PUP | |
109 | /* | |
110 | * Curious, we convert PUP address format to internet | |
111 | * to allow us to verify we're asking for an Ethernet | |
112 | * interface. This is wrong, but things are heavily | |
113 | * oriented towards the internet addressing scheme, and | |
114 | * converting internet to PUP would be very expensive. | |
115 | */ | |
116 | case AF_PUP: { | |
117 | #include "../netpup/pup.h" | |
118 | struct sockaddr_pup *spup = (struct sockaddr_pup *)addr; | |
119 | struct sockaddr_in inpup; | |
120 | ||
af0b24db | 121 | bzero((caddr_t)&inpup, (unsigned)sizeof(inpup)); |
14fa60f2 BJ |
122 | inpup.sin_family = AF_INET; |
123 | inpup.sin_addr.s_net = spup->sp_net; | |
124 | inpup.sin_addr.s_impno = spup->sp_host; | |
125 | if (inpup.sin_addr.s_addr && | |
126 | if_ifwithaddr((struct sockaddr *)&inpup) == 0) | |
127 | return (EADDRNOTAVAIL); | |
128 | break; | |
129 | } | |
130 | #endif | |
131 | ||
132 | default: | |
133 | return (EAFNOSUPPORT); | |
134 | } | |
135 | } | |
136 | /* END DUBIOUS */ | |
af0b24db | 137 | rp = sotorawcb(so); |
14fa60f2 BJ |
138 | bcopy((caddr_t)addr, (caddr_t)&rp->rcb_laddr, sizeof (*addr)); |
139 | rp->rcb_flags |= RAW_LADDR; | |
140 | return (0); | |
141 | } | |
142 | ||
785d93ac BJ |
143 | /* |
144 | * Associate a peer's address with a | |
145 | * raw connection block. | |
146 | */ | |
14fa60f2 | 147 | raw_connaddr(rp, nam) |
785d93ac | 148 | struct rawcb *rp; |
14fa60f2 | 149 | struct mbuf *nam; |
785d93ac | 150 | { |
14fa60f2 BJ |
151 | struct sockaddr *addr = mtod(nam, struct sockaddr *); |
152 | ||
126472ab SL |
153 | bcopy((caddr_t)addr, (caddr_t)&rp->rcb_faddr, sizeof(*addr)); |
154 | rp->rcb_flags |= RAW_FADDR; | |
785d93ac | 155 | } |