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mirror of https://git.FreeBSD.org/src.git synced 2024-12-19 10:53:58 +00:00

Remove the number of addresses restriction from sctp_connectx().

Remove unused code.
While there, do some cleanup of the code.

MFC after: 1 week
This commit is contained in:
Michael Tuexen 2013-04-10 11:26:30 +00:00
parent 57cdcaa6df
commit 7f15a8dff2
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/head/; revision=249333

View File

@ -48,8 +48,6 @@ __FBSDID("$FreeBSD$");
#include <netinet/sctp_uio.h>
#include <netinet/sctp.h>
#include <net/if_dl.h>
#ifndef IN6_IS_ADDR_V4MAPPED
#define IN6_IS_ADDR_V4MAPPED(a) \
((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
@ -57,77 +55,8 @@ __FBSDID("$FreeBSD$");
(*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
#endif
#define SCTP_CONTROL_VEC_SIZE_SND 8192
#define SCTP_CONTROL_VEC_SIZE_RCV 16384
#define SCTP_STACK_BUF_SIZE 2048
#ifdef SCTP_DEBUG_PRINT_ADDRESS
#define SCTP_STRING_BUF_SZ 256
static void
SCTPPrintAnAddress(struct sockaddr *a)
{
char stringToPrint[SCTP_STRING_BUF_SZ];
u_short prt;
char *srcaddr, *txt;
if (a == NULL) {
printf("NULL\n");
return;
}
if (a->sa_family == AF_INET) {
srcaddr = (char *)&((struct sockaddr_in *)a)->sin_addr;
txt = "IPv4 Address: ";
prt = ntohs(((struct sockaddr_in *)a)->sin_port);
} else if (a->sa_family == AF_INET6) {
srcaddr = (char *)&((struct sockaddr_in6 *)a)->sin6_addr;
prt = ntohs(((struct sockaddr_in6 *)a)->sin6_port);
txt = "IPv6 Address: ";
} else if (a->sa_family == AF_LINK) {
int i;
char tbuf[SCTP_STRING_BUF_SZ];
u_char adbuf[SCTP_STRING_BUF_SZ];
struct sockaddr_dl *dl;
dl = (struct sockaddr_dl *)a;
strncpy(tbuf, dl->sdl_data, dl->sdl_nlen);
tbuf[dl->sdl_nlen] = 0;
printf("Intf:%s (len:%d)Interface index:%d type:%x(%d) ll-len:%d ",
tbuf,
dl->sdl_nlen,
dl->sdl_index,
dl->sdl_type,
dl->sdl_type,
dl->sdl_alen
);
memcpy(adbuf, LLADDR(dl), dl->sdl_alen);
for (i = 0; i < dl->sdl_alen; i++) {
printf("%2.2x", adbuf[i]);
if (i < (dl->sdl_alen - 1))
printf(":");
}
printf("\n");
return;
} else {
return;
}
if (inet_ntop(a->sa_family, srcaddr, stringToPrint, sizeof(stringToPrint))) {
if (a->sa_family == AF_INET6) {
printf("%s%s:%d scope:%d\n",
txt, stringToPrint, prt,
((struct sockaddr_in6 *)a)->sin6_scope_id);
} else {
printf("%s%s:%d\n", txt, stringToPrint, prt);
}
} else {
printf("%s unprintable?\n", txt);
}
}
#endif /* SCTP_DEBUG_PRINT_ADDRESS */
static void
in6_sin6_2_sin(struct sockaddr_in *sin, struct sockaddr_in6 *sin6)
@ -171,11 +100,10 @@ int
sctp_connectx(int sd, const struct sockaddr *addrs, int addrcnt,
sctp_assoc_t * id)
{
char buf[SCTP_STACK_BUF_SIZE];
char *buf;
int i, ret, cnt, *aa;
char *cpto;
const struct sockaddr *at;
sctp_assoc_t *p_id;
size_t len = sizeof(int);
/* validate the address count and list */
@ -183,24 +111,29 @@ sctp_connectx(int sd, const struct sockaddr *addrs, int addrcnt,
errno = EINVAL;
return (-1);
}
if ((buf = malloc(sizeof(int) + (size_t)addrcnt * sizeof(struct sockaddr_in6))) == NULL) {
errno = E2BIG;
return (-1);
}
at = addrs;
cnt = 0;
cpto = ((caddr_t)buf + sizeof(int));
cpto = buf + sizeof(int);
/* validate all the addresses and get the size */
for (i = 0; i < addrcnt; i++) {
switch (at->sa_family) {
case AF_INET:
if (at->sa_len != sizeof(struct sockaddr_in)) {
free(buf);
errno = EINVAL;
return (-1);
}
memcpy(cpto, at, sizeof(struct sockaddr_in));
cpto = ((caddr_t)cpto + sizeof(struct sockaddr_in));
len += sizeof(struct sockaddr_in);
at = (struct sockaddr *)((caddr_t)at + sizeof(struct sockaddr_in));
break;
case AF_INET6:
if (at->sa_len != sizeof(struct sockaddr_in6)) {
free(buf);
errno = EINVAL;
return (-1);
}
@ -213,31 +146,20 @@ sctp_connectx(int sd, const struct sockaddr *addrs, int addrcnt,
cpto = ((caddr_t)cpto + sizeof(struct sockaddr_in6));
len += sizeof(struct sockaddr_in6);
}
at = (struct sockaddr *)((caddr_t)at + sizeof(struct sockaddr_in6));
break;
default:
free(buf);
errno = EINVAL;
return (-1);
}
if (len > (sizeof(buf) - sizeof(int))) {
/* Never enough memory */
errno = E2BIG;
return (-1);
}
cnt++;
}
/* do we have any? */
if (cnt == 0) {
errno = EINVAL;
return (-1);
at = (struct sockaddr *)((caddr_t)at + at->sa_len);
}
aa = (int *)buf;
*aa = cnt;
*aa = addrcnt;
ret = setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X, (void *)buf,
(socklen_t) len);
if ((ret == 0) && id) {
p_id = (sctp_assoc_t *) buf;
*id = *p_id;
if ((ret == 0) && (id != NULL)) {
*id = *(sctp_assoc_t *) buf;
}
return (ret);
}
@ -345,7 +267,6 @@ sctp_bindx(int sd, struct sockaddr *addrs, int addrcnt, int flags)
return (0);
}
int
sctp_opt_info(int sd, sctp_assoc_t id, int opt, void *arg, socklen_t * size)
{
@ -471,9 +392,9 @@ sctp_getpaddrs(int sd, sctp_assoc_t id, struct sockaddr **raddrs)
void
sctp_freepaddrs(struct sockaddr *addrs)
{
/* Take away the hidden association id */
void *fr_addr;
/* Take away the hidden association id */
fr_addr = (void *)((caddr_t)addrs - sizeof(sctp_assoc_t));
/* Now free it */
free(fr_addr);
@ -534,15 +455,14 @@ sctp_getladdrs(int sd, sctp_assoc_t id, struct sockaddr **raddrs)
void
sctp_freeladdrs(struct sockaddr *addrs)
{
/* Take away the hidden association id */
void *fr_addr;
/* Take away the hidden association id */
fr_addr = (void *)((caddr_t)addrs - sizeof(sctp_assoc_t));
/* Now free it */
free(fr_addr);
}
ssize_t
sctp_sendmsg(int s,
const void *data,
@ -568,11 +488,10 @@ sctp_sendmsg(int s,
return (syscall(SYS_sctp_generic_sendmsg, s,
data, len, to, tolen, &sinfo, 0));
#else
ssize_t sz;
struct msghdr msg;
struct sctp_sndrcvinfo *s_info;
struct sctp_sndrcvinfo *sinfo;
struct iovec iov;
char controlVector[SCTP_CONTROL_VEC_SIZE_RCV];
char cmsgbuf[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))];
struct cmsghdr *cmsg;
struct sockaddr *who = NULL;
union {
@ -585,8 +504,9 @@ sctp_sendmsg(int s,
errno = EINVAL;
return (-1);
}
if (to && (tolen > 0)) {
if (to->sa_family == AF_INET) {
if ((to != NULL) && (tolen > 0)) {
switch (to->sa_family) {
case AF_INET:
if (tolen != sizeof(struct sockaddr_in)) {
errno = EINVAL;
return (-1);
@ -598,7 +518,8 @@ sctp_sendmsg(int s,
}
memcpy(&addr, to, sizeof(struct sockaddr_in));
addr.in.sin_len = sizeof(struct sockaddr_in);
} else if (to->sa_family == AF_INET6) {
break;
case AF_INET6:
if (tolen != sizeof(struct sockaddr_in6)) {
errno = EINVAL;
return (-1);
@ -610,7 +531,8 @@ sctp_sendmsg(int s,
}
memcpy(&addr, to, sizeof(struct sockaddr_in6));
addr.in6.sin6_len = sizeof(struct sockaddr_in6);
} else {
break;
default:
errno = EAFNOSUPPORT;
return (-1);
}
@ -628,26 +550,21 @@ sctp_sendmsg(int s,
}
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
msg.msg_control = (caddr_t)controlVector;
cmsg = (struct cmsghdr *)controlVector;
msg.msg_control = cmsgbuf;
msg.msg_controllen = CMSG_SPACE(sizeof(struct sctp_sndrcvinfo));
cmsg = (struct cmsghdr *)cmsgbuf;
cmsg->cmsg_level = IPPROTO_SCTP;
cmsg->cmsg_type = SCTP_SNDRCV;
cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
s_info = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
s_info->sinfo_stream = stream_no;
s_info->sinfo_ssn = 0;
s_info->sinfo_flags = flags;
s_info->sinfo_ppid = ppid;
s_info->sinfo_context = context;
s_info->sinfo_assoc_id = 0;
s_info->sinfo_timetolive = timetolive;
errno = 0;
msg.msg_controllen = cmsg->cmsg_len;
sz = sendmsg(s, &msg, 0);
return (sz);
sinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
sinfo->sinfo_stream = stream_no;
sinfo->sinfo_ssn = 0;
sinfo->sinfo_flags = flags;
sinfo->sinfo_ppid = ppid;
sinfo->sinfo_context = context;
sinfo->sinfo_assoc_id = 0;
sinfo->sinfo_timetolive = timetolive;
return (sendmsg(s, &msg, 0));
#endif
}
@ -662,12 +579,11 @@ sctp_getassocid(int sd, struct sockaddr *sa)
siz = sizeof(sp);
memset(&sp, 0, sizeof(sp));
memcpy((caddr_t)&sp.spinfo_address, sa, sa->sa_len);
errno = 0;
if (getsockopt(sd, IPPROTO_SCTP,
SCTP_GET_PEER_ADDR_INFO, &sp, &siz) != 0) {
/* We depend on the fact that 0 can never be returned */
return ((sctp_assoc_t) 0);
}
/* We depend on the fact that 0 can never be returned */
return (sp.spinfo_assoc_id);
}
@ -683,11 +599,9 @@ sctp_send(int sd, const void *data, size_t len,
return (syscall(SYS_sctp_generic_sendmsg, sd,
data, len, to, 0, sinfo, flags));
#else
ssize_t sz;
struct msghdr msg;
struct iovec iov;
struct sctp_sndrcvinfo *s_info;
char controlVector[SCTP_CONTROL_VEC_SIZE_SND];
char cmsgbuf[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))];
struct cmsghdr *cmsg;
if (sinfo == NULL) {
@ -697,24 +611,18 @@ sctp_send(int sd, const void *data, size_t len,
iov.iov_base = (char *)data;
iov.iov_len = len;
msg.msg_name = 0;
msg.msg_name = NULL;
msg.msg_namelen = 0;
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
msg.msg_control = (caddr_t)controlVector;
cmsg = (struct cmsghdr *)controlVector;
msg.msg_control = cmsgbuf;
msg.msg_controllen = CMSG_SPACE(sizeof(struct sctp_sndrcvinfo));
cmsg = (struct cmsghdr *)cmsgbuf;
cmsg->cmsg_level = IPPROTO_SCTP;
cmsg->cmsg_type = SCTP_SNDRCV;
cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
s_info = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
/* copy in the data */
*s_info = *sinfo;
errno = 0;
msg.msg_controllen = cmsg->cmsg_len;
sz = sendmsg(sd, &msg, flags);
return (sz);
memcpy(CMSG_DATA(cmsg), sinfo, sizeof(struct sctp_sndrcvinfo));
return (sendmsg(sd, &msg, flags));
#endif
}
@ -856,11 +764,10 @@ sctp_recvmsg(int s,
return (syscall(SYS_sctp_generic_recvmsg, s,
&iov, 1, from, fromlen, sinfo, msg_flags));
#else
struct sctp_sndrcvinfo *s_info;
ssize_t sz;
struct msghdr msg;
struct iovec iov;
char controlVector[SCTP_CONTROL_VEC_SIZE_RCV];
char cmsgbuf[SCTP_CONTROL_VEC_SIZE_RCV];
struct cmsghdr *cmsg;
if (msg_flags == NULL) {
@ -877,52 +784,38 @@ sctp_recvmsg(int s,
msg.msg_namelen = *fromlen;
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
msg.msg_control = (caddr_t)controlVector;
msg.msg_controllen = sizeof(controlVector);
errno = 0;
msg.msg_control = cmsgbuf;
msg.msg_controllen = sizeof(cmsgbuf);
sz = recvmsg(s, &msg, *msg_flags);
*msg_flags = msg.msg_flags;
if (sz <= 0) {
return (sz);
}
s_info = NULL;
if (sinfo) {
sinfo->sinfo_assoc_id = 0;
}
if ((msg.msg_controllen) && sinfo) {
if ((msg.msg_controllen > 0) && (sinfo != NULL)) {
/*
* parse through and see if we find the sctp_sndrcvinfo (if
* the user wants it).
*/
cmsg = (struct cmsghdr *)controlVector;
while (cmsg) {
if ((cmsg->cmsg_len == 0) || (cmsg->cmsg_len > msg.msg_controllen)) {
for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
if (cmsg->cmsg_level != IPPROTO_SCTP) {
continue;
}
if (cmsg->cmsg_type == SCTP_SNDRCV) {
memcpy(sinfo, CMSG_DATA(cmsg), sizeof(struct sctp_sndrcvinfo));
break;
}
if (cmsg->cmsg_level == IPPROTO_SCTP) {
if (cmsg->cmsg_type == SCTP_SNDRCV) {
/* Got it */
s_info = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
/* Copy it to the user */
if (sinfo)
*sinfo = *s_info;
break;
} else if (cmsg->cmsg_type == SCTP_EXTRCV) {
/*
* Got it, presumably the user has
* asked for this extra info, so the
* structure holds more room :-D
*/
s_info = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
/* Copy it to the user */
if (sinfo) {
memcpy(sinfo, s_info, sizeof(struct sctp_extrcvinfo));
}
break;
}
if (cmsg->cmsg_type == SCTP_EXTRCV) {
/*
* Let's hope that the user provided enough
* enough memory. At least he asked for more
* information.
*/
memcpy(sinfo, CMSG_DATA(cmsg), sizeof(struct sctp_extrcvinfo));
break;
}
cmsg = CMSG_NXTHDR(&msg, cmsg);
}
}
return (sz);
@ -940,10 +833,10 @@ sctp_recvv(int sd,
unsigned int *infotype,
int *flags)
{
char ctlbuf[SCTP_CONTROL_VEC_SIZE_RCV];
char cmsgbuf[SCTP_CONTROL_VEC_SIZE_RCV];
struct msghdr msg;
struct cmsghdr *cmsg;
ssize_t n;
ssize_t ret;
struct sctp_rcvinfo *rcvinfo;
struct sctp_nxtinfo *nxtinfo;
@ -964,12 +857,11 @@ sctp_recvv(int sd,
}
msg.msg_iov = (struct iovec *)iov;
msg.msg_iovlen = iovlen;
msg.msg_control = ctlbuf;
msg.msg_controllen = sizeof(ctlbuf);
errno = 0;
n = recvmsg(sd, &msg, *flags);
msg.msg_control = cmsgbuf;
msg.msg_controllen = sizeof(cmsgbuf);
ret = recvmsg(sd, &msg, *flags);
*flags = msg.msg_flags;
if ((n > 0) &&
if ((ret > 0) &&
(msg.msg_controllen > 0) &&
(infotype != NULL) &&
(infolen != NULL) &&
@ -982,41 +874,44 @@ sctp_recvv(int sd,
}
if (cmsg->cmsg_type == SCTP_RCVINFO) {
rcvinfo = (struct sctp_rcvinfo *)CMSG_DATA(cmsg);
if (nxtinfo != NULL) {
break;
} else {
continue;
}
}
if (cmsg->cmsg_type == SCTP_NXTINFO) {
nxtinfo = (struct sctp_nxtinfo *)CMSG_DATA(cmsg);
}
if (rcvinfo && nxtinfo) {
break;
if (rcvinfo != NULL) {
break;
} else {
continue;
}
}
}
if (rcvinfo) {
if (nxtinfo) {
if (*infolen >= sizeof(struct sctp_recvv_rn)) {
struct sctp_recvv_rn *rn_info;
if (rcvinfo != NULL) {
if ((nxtinfo != NULL) && (*infolen >= sizeof(struct sctp_recvv_rn))) {
struct sctp_recvv_rn *rn_info;
rn_info = (struct sctp_recvv_rn *)info;
rn_info->recvv_rcvinfo = *rcvinfo;
rn_info->recvv_nxtinfo = *nxtinfo;
*infolen = (socklen_t) sizeof(struct sctp_recvv_rn);
*infotype = SCTP_RECVV_RN;
}
} else {
if (*infolen >= sizeof(struct sctp_rcvinfo)) {
memcpy(info, rcvinfo, sizeof(struct sctp_rcvinfo));
*infolen = (socklen_t) sizeof(struct sctp_rcvinfo);
*infotype = SCTP_RECVV_RCVINFO;
}
rn_info = (struct sctp_recvv_rn *)info;
rn_info->recvv_rcvinfo = *rcvinfo;
rn_info->recvv_nxtinfo = *nxtinfo;
*infolen = (socklen_t) sizeof(struct sctp_recvv_rn);
*infotype = SCTP_RECVV_RN;
} else if (*infolen >= sizeof(struct sctp_rcvinfo)) {
memcpy(info, rcvinfo, sizeof(struct sctp_rcvinfo));
*infolen = (socklen_t) sizeof(struct sctp_rcvinfo);
*infotype = SCTP_RECVV_RCVINFO;
}
} else if (nxtinfo) {
if (*infolen >= sizeof(struct sctp_rcvinfo)) {
} else if (nxtinfo != NULL) {
if (*infolen >= sizeof(struct sctp_nxtinfo)) {
memcpy(info, nxtinfo, sizeof(struct sctp_nxtinfo));
*infolen = (socklen_t) sizeof(struct sctp_nxtinfo);
*infotype = SCTP_RECVV_NXTINFO;
}
}
}
return (n);
return (ret);
}
ssize_t
@ -1241,7 +1136,4 @@ sctp_peeloff(int sd, sctp_assoc_t assoc_id)
#endif
#undef SCTP_CONTROL_VEC_SIZE_SND
#undef SCTP_CONTROL_VEC_SIZE_RCV
#undef SCTP_STACK_BUF_SIZE