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29 * @(#)uipc_domain.c 8.2 (Berkeley) 10/18/93
30 * $FreeBSD: src/sys/kern/uipc_domain.c,v 1.22.2.1 2001/07/03 11:01:37 ume Exp $
33 #include <sys/param.h>
34 #include <sys/socket.h>
35 #include <sys/protosw.h>
36 #include <sys/domain.h>
38 #include <sys/kernel.h>
39 #include <sys/socketvar.h>
40 #include <sys/socketops.h>
41 #include <sys/systm.h>
42 #include <vm/vm_zone.h>
44 #include <sys/thread2.h>
47 * System initialization
49 * Note: domain initialization wants to take place on a per domain basis
50 * as a result of traversing a linker set. Most likely, each domain
51 * want to call a registration function rather than being handled here
52 * in domaininit(). Probably this will look like:
54 * SYSINIT(unique, SI_SUB_PROTO_DOMAIN, SI_ORDER_ANY, domain_add, xxx);
56 * Where 'xxx' is replaced by the address of a parameter struct to be
57 * passed to the doamin_add() function.
60 static void domaininit (void *);
61 SYSINIT(domain, SI_SUB_PROTO_DOMAIN, SI_ORDER_FIRST, domaininit, NULL);
63 struct domainlist domains;
66 * Add a new protocol domain to the list of supported domains
67 * Note: you cant unload it again because a socket may be using it.
68 * XXX can't fail at this time.
70 #define PR_NOTSUPP(pr, label) \
71 if (pr->pr_ ## label == NULL) \
72 pr->pr_ ## label = pr_generic_notsupp;
74 #define PRU_NOTSUPP(pu, label) \
75 if (pu->pru_ ## label == NULL) \
76 pu->pru_ ## label = pr_generic_notsupp;
79 net_init_domain(struct domain *dp)
82 struct pr_usrreqs *pu;
89 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
92 panic("domaininit: %ssw[%ld] has no usrreqs!",
93 dp->dom_name, (long)(pr - dp->dom_protosw));
95 PR_NOTSUPP(pr, ctloutput);
96 PRU_NOTSUPP(pu, accept);
97 PRU_NOTSUPP(pu, bind);
98 PRU_NOTSUPP(pu, connect);
99 PRU_NOTSUPP(pu, connect2);
100 PRU_NOTSUPP(pu, control);
101 PRU_NOTSUPP(pu, disconnect);
102 PRU_NOTSUPP(pu, listen);
103 PRU_NOTSUPP(pu, peeraddr);
104 PRU_NOTSUPP(pu, rcvd);
105 PRU_NOTSUPP(pu, rcvoob);
106 PRU_NOTSUPP(pu, shutdown);
107 PRU_NOTSUPP(pu, sockaddr);
109 if (pu->pru_sense == NULL)
110 pu->pru_sense = pru_sense_null;
111 if (pu->pru_sosend == NULL)
112 pu->pru_sosend = pru_sosend_notsupp;
113 if (pu->pru_soreceive == NULL)
114 pu->pru_soreceive = pru_soreceive_notsupp;
120 * update global information about maximums
122 max_hdr = max_linkhdr + max_protohdr;
123 max_datalen = MHLEN - max_hdr;
128 * Add a new protocol domain to the list of supported domains
129 * Note: you cant unload it again because a socket may be using it.
130 * XXX can't fail at this time.
133 net_add_domain(void *data)
135 struct domain *dp = data;
138 SLIST_INSERT_HEAD(&domains, dp, dom_next);
145 domaininit(void *dummy)
147 if (max_linkhdr < 20) /* XXX */
153 pffindtype(int family, int type)
158 SLIST_FOREACH(dp, &domains, dom_next)
159 if (dp->dom_family == family)
164 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
165 if (pr->pr_type && pr->pr_type == type)
171 pffindproto(int family, int protocol, int type)
175 struct protosw *maybe = NULL;
179 SLIST_FOREACH(dp, &domains, dom_next)
180 if (dp->dom_family == family)
185 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
186 if ((pr->pr_protocol == protocol) && (pr->pr_type == type))
189 if (type == SOCK_RAW && pr->pr_type == SOCK_RAW &&
190 pr->pr_protocol == 0 && maybe == NULL)
197 kpfctlinput(int cmd, struct sockaddr *sa)
202 SLIST_FOREACH(dp, &domains, dom_next) {
203 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
204 so_pr_ctlinput(pr, cmd, sa, NULL);
209 kpfctlinput_direct(int cmd, struct sockaddr *sa)
214 SLIST_FOREACH(dp, &domains, dom_next) {
215 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
216 so_pr_ctlinput_direct(pr, cmd, sa, NULL);
221 kpfctlinput2(int cmd, struct sockaddr *sa, void *ctlparam)
228 SLIST_FOREACH(dp, &domains, dom_next) {
230 * the check must be made by xx_ctlinput() anyways, to
231 * make sure we use data item pointed to by ctlparam in
232 * correct way. the following check is made just for safety.
234 if (dp->dom_family != sa->sa_family)
237 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
238 so_pr_ctlinput(pr, cmd, sa, ctlparam);