- tprints("sa_data=");
- print_quoted_string(addr->sa.sa_data,
- sizeof(addr->sa.sa_data), 0);
- break;
- }
- tprints("}");
-}
-
-void
-printsock(struct tcb *tcp, long addr, int addrlen)
-{
- sockaddr_buf_t addrbuf;
-
- if (addrlen < 2) {
- printaddr(addr);
- return;
- }
-
- if (addrlen > (int) sizeof(addrbuf))
- addrlen = sizeof(addrbuf);
-
- memset(&addrbuf, 0, sizeof(addrbuf));
- if (umoven_or_printaddr(tcp, addr, addrlen, addrbuf.pad))
- return;
- addrbuf.pad[sizeof(addrbuf.pad) - 1] = '\0';
-
- print_sockaddr(tcp, &addrbuf, addrlen);
-}
-
-#include "xlat/scmvals.h"
-#include "xlat/ip_cmsg_types.h"
-
-#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
-struct cmsghdr32 {
- uint32_t cmsg_len;
- int cmsg_level;
- int cmsg_type;
-};
-#endif
-
-typedef union {
- char *ptr;
- struct cmsghdr *cmsg;
-#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
- struct cmsghdr32 *cmsg32;
-#endif
-} union_cmsghdr;
-
-static void
-print_scm_rights(struct tcb *tcp, const void *cmsg_data,
- const size_t data_len)
-{
- const int *fds = cmsg_data;
- const char *end = (const char *) cmsg_data + data_len;
- bool seen = false;
-
- if (sizeof(*fds) > data_len)
- return;
-
- tprints(", [");
- while ((const char *) fds < end) {
- if (seen)
- tprints(", ");
- else
- seen = true;
- printfd(tcp, *fds++);
- }
- tprints("]");
-}
-
-static void
-print_scm_creds(struct tcb *tcp, const void *cmsg_data,
- const size_t data_len)
-{
- const struct ucred *uc = cmsg_data;
-
- if (sizeof(*uc) > data_len)
- return;
-
- tprintf(", {pid=%u, uid=%u, gid=%u}",
- (unsigned) uc->pid, (unsigned) uc->uid, (unsigned) uc->gid);
-}
-
-static void
-print_scm_security(struct tcb *tcp, const void *cmsg_data,
- const size_t data_len)
-{
- if (!data_len)
- return;
-
- tprints(", ");
- print_quoted_string(cmsg_data, data_len, 0);
-}
-
-static void
-print_cmsg_ip_pktinfo(struct tcb *tcp, const void *cmsg_data,
- const size_t data_len)
-{
- const struct in_pktinfo *info = cmsg_data;
-
- if (sizeof(*info) > data_len)
- return;
-
- tprints(", {ipi_ifindex=");
- print_ifindex(info->ipi_ifindex);
- tprintf(", ipi_spec_dst=inet_addr(\"%s\"), ipi_addr=inet_addr(\"%s\")}",
- inet_ntoa(info->ipi_spec_dst), inet_ntoa(info->ipi_addr));
-}
-
-static void
-print_cmsg_ip_ttl(struct tcb *tcp, const void *cmsg_data,
- const size_t data_len)
-{
- const unsigned int *ttl = cmsg_data;
-
- if (sizeof(*ttl) > data_len)
- return;
-
- tprintf(", {ttl=%u}", *ttl);
-}
-
-static void
-print_cmsg_ip_tos(struct tcb *tcp, const void *cmsg_data,
- const size_t data_len)
-{
- const uint8_t *tos = cmsg_data;
-
- if (sizeof(*tos) > data_len)
- return;
-
- tprintf(", {tos=%x}", *tos);
-}
-
-static void
-print_cmsg_ip_checksum(struct tcb *tcp, const void *cmsg_data,
- const size_t data_len)
-{
- const uint32_t *csum = cmsg_data;
-
- if (sizeof(*csum) > data_len)
- return;
-
- tprintf(", {csum=%u}", *csum);
-}
-
-static void
-print_cmsg_ip_opts(struct tcb *tcp, const void *cmsg_data,
- const size_t data_len)
-{
- const unsigned char *opts = cmsg_data;
- size_t i;
-
- if (!data_len)
- return;
-
- tprints(", {opts=0x");
- for (i = 0; i < data_len; ++i)
- tprintf("%02x", opts[i]);
- tprints("}");
-}
-
-static void
-print_cmsg_ip_recverr(struct tcb *tcp, const void *cmsg_data,
- const size_t data_len)
-{
- const struct {
- uint32_t ee_errno;
- uint8_t ee_origin;
- uint8_t ee_type;
- uint8_t ee_code;
- uint8_t ee_pad;
- uint32_t ee_info;
- uint32_t ee_data;
- struct sockaddr_in offender;
- } *err = cmsg_data;
-
- if (sizeof(*err) > data_len)
- return;
-
- tprintf(", {ee_errno=%u, ee_origin=%u, ee_type=%u, ee_code=%u"
- ", ee_info=%u, ee_data=%u, offender=",
- err->ee_errno, err->ee_origin, err->ee_type,
- err->ee_code, err->ee_info, err->ee_data);
- print_sockaddr(tcp, (const void *) &err->offender,
- sizeof(err->offender));
- tprints("}");
-}
-
-static void
-print_cmsg_ip_origdstaddr(struct tcb *tcp, const void *cmsg_data,
- const size_t data_len)
-{
- if (sizeof(struct sockaddr_in) > data_len)
- return;
-
- tprints(", ");
- print_sockaddr(tcp, cmsg_data, data_len);
-}
-
-static void
-print_cmsg_type_data(struct tcb *tcp, const int cmsg_level, const int cmsg_type,
- const void *cmsg_data, const size_t data_len)
-{
- switch (cmsg_level) {
- case SOL_SOCKET:
- printxval(scmvals, cmsg_type, "SCM_???");
- switch (cmsg_type) {
- case SCM_RIGHTS:
- print_scm_rights(tcp, cmsg_data, data_len);
- break;
- case SCM_CREDENTIALS:
- print_scm_creds(tcp, cmsg_data, data_len);
- break;
- case SCM_SECURITY:
- print_scm_security(tcp, cmsg_data, data_len);
- break;
- }
- break;
- case SOL_IP:
- printxval(ip_cmsg_types, cmsg_type, "IP_???");
- switch (cmsg_type) {
- case IP_PKTINFO:
- print_cmsg_ip_pktinfo(tcp, cmsg_data, data_len);
- break;
- case IP_TTL:
- print_cmsg_ip_ttl(tcp, cmsg_data, data_len);
- break;
- case IP_TOS:
- print_cmsg_ip_tos(tcp, cmsg_data, data_len);
- break;
- case IP_RECVOPTS:
- case IP_RETOPTS:
- print_cmsg_ip_opts(tcp, cmsg_data, data_len);
- break;
- case IP_RECVERR:
- print_cmsg_ip_recverr(tcp, cmsg_data, data_len);
- break;
- case IP_ORIGDSTADDR:
- print_cmsg_ip_origdstaddr(tcp, cmsg_data, data_len);
- break;
- case IP_CHECKSUM:
- print_cmsg_ip_checksum(tcp, cmsg_data, data_len);
- break;
- case SCM_SECURITY:
- print_scm_security(tcp, cmsg_data, data_len);
- break;
- }
- break;
- default:
- tprintf("%u", cmsg_type);
- }
-}
-
-static void
-printcmsghdr(struct tcb *tcp, unsigned long addr, size_t len)
-{
- const size_t cmsg_size =
-#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
- (current_wordsize < sizeof(long)) ? sizeof(struct cmsghdr32) :
-#endif
- sizeof(struct cmsghdr);
-
- char *buf = len < cmsg_size ? NULL : malloc(len);
- if (!buf || umoven(tcp, addr, len, buf) < 0) {
- tprints(", msg_control=");
- printaddr(addr);
- free(buf);
- return;
- }
-
- union_cmsghdr u = { .ptr = buf };
-
- tprints(", [");
- while (len >= cmsg_size) {
- size_t cmsg_len =
-#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
- (current_wordsize < sizeof(long)) ? u.cmsg32->cmsg_len :
-#endif
- u.cmsg->cmsg_len;
- int cmsg_level =
-#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
- (current_wordsize < sizeof(long)) ? u.cmsg32->cmsg_level :
-#endif
- u.cmsg->cmsg_level;
- int cmsg_type =
-#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
- (current_wordsize < sizeof(long)) ? u.cmsg32->cmsg_type :
-#endif
- u.cmsg->cmsg_type;
-
- if (u.ptr != buf)
- tprints(", ");
- tprintf("{cmsg_len=%lu, cmsg_level=", (unsigned long) cmsg_len);
- printxval(socketlayers, cmsg_level, "SOL_???");
- tprints(", cmsg_type=");
-
- if (cmsg_len > len)
- cmsg_len = len;
-
- print_cmsg_type_data(tcp, cmsg_level, cmsg_type,
- (const void *) (u.ptr + cmsg_size),
- cmsg_len > cmsg_size ? cmsg_len - cmsg_size: 0);
- tprints("}");
-
- if (cmsg_len < cmsg_size) {
- len -= cmsg_size;
- break;
- }
- cmsg_len = (cmsg_len + current_wordsize - 1) &
- (size_t) ~(current_wordsize - 1);
- if (cmsg_len >= len) {
- len = 0;
- break;
- }
- u.ptr += cmsg_len;
- len -= cmsg_len;
- }
- if (len)
- tprints(", ...");
- tprints("]");
- free(buf);
-}
-
-static void
-do_msghdr(struct tcb *tcp, struct msghdr *msg, unsigned long data_size)
-{
- tprintf("{msg_name(%d)=", msg->msg_namelen);
- printsock(tcp, (long)msg->msg_name, msg->msg_namelen);
-
- tprintf(", msg_iov(%lu)=", (unsigned long)msg->msg_iovlen);
- tprint_iov_upto(tcp, (unsigned long)msg->msg_iovlen,
- (unsigned long)msg->msg_iov, 1, data_size);
-
-#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL
- tprintf(", msg_controllen=%lu", (unsigned long)msg->msg_controllen);
- if (msg->msg_controllen)
- printcmsghdr(tcp, (unsigned long) msg->msg_control,
- msg->msg_controllen);
- tprints(", msg_flags=");
- printflags(msg_flags, msg->msg_flags, "MSG_???");
-#else /* !HAVE_STRUCT_MSGHDR_MSG_CONTROL */
- tprintf("msg_accrights=%#lx, msg_accrightslen=%u",
- (unsigned long) msg->msg_accrights, msg->msg_accrightslen);
-#endif /* !HAVE_STRUCT_MSGHDR_MSG_CONTROL */
- tprints("}");
-}
-
-struct msghdr32 {
- uint32_t /* void* */ msg_name;
- uint32_t /* socklen_t */msg_namelen;
- uint32_t /* iovec* */ msg_iov;
- uint32_t /* size_t */ msg_iovlen;
- uint32_t /* void* */ msg_control;
- uint32_t /* size_t */ msg_controllen;
- uint32_t /* int */ msg_flags;
-};
-struct mmsghdr32 {
- struct msghdr32 msg_hdr;
- uint32_t /* unsigned */ msg_len;
-};
-
-#ifndef HAVE_STRUCT_MMSGHDR
-struct mmsghdr {
- struct msghdr msg_hdr;
- unsigned msg_len;
-};
-#endif
-
-#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
-static void
-copy_from_msghdr32(struct msghdr *to_msg, struct msghdr32 *from_msg32)
-{
- to_msg->msg_name = (void*)(long)from_msg32->msg_name;
- to_msg->msg_namelen = from_msg32->msg_namelen;
- to_msg->msg_iov = (void*)(long)from_msg32->msg_iov;
- to_msg->msg_iovlen = from_msg32->msg_iovlen;
- to_msg->msg_control = (void*)(long)from_msg32->msg_control;
- to_msg->msg_controllen = from_msg32->msg_controllen;
- to_msg->msg_flags = from_msg32->msg_flags;
-}
-#endif
-
-static bool
-extractmsghdr(struct tcb *tcp, long addr, struct msghdr *msg)
-{
-#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
- if (current_wordsize == 4) {
- struct msghdr32 msg32;
-
- if (umove(tcp, addr, &msg32) < 0)
- return false;
- copy_from_msghdr32(msg, &msg32);
- } else
-#endif
- if (umove(tcp, addr, msg) < 0)
- return false;
- return true;
-}
-
-static bool
-extractmmsghdr(struct tcb *tcp, long addr, unsigned int idx, struct mmsghdr *mmsg)
-{
-#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
- if (current_wordsize == 4) {
- struct mmsghdr32 mmsg32;
-
- addr += sizeof(struct mmsghdr32) * idx;
- if (umove(tcp, addr, &mmsg32) < 0)
- return false;
-
- copy_from_msghdr32(&mmsg->msg_hdr, &mmsg32.msg_hdr);
- mmsg->msg_len = mmsg32.msg_len;
- } else
-#endif
- {
- addr += sizeof(*mmsg) * idx;
- if (umove(tcp, addr, mmsg) < 0)
- return false;
- }
- return true;
-}
-
-static void
-printmsghdr(struct tcb *tcp, long addr, unsigned long data_size)
-{
- struct msghdr msg;
-
- if (verbose(tcp) && extractmsghdr(tcp, addr, &msg))
- do_msghdr(tcp, &msg, data_size);
- else
- printaddr(addr);
-}
-
-void
-dumpiov_in_msghdr(struct tcb *tcp, long addr, unsigned long data_size)
-{
- struct msghdr msg;
-
- if (extractmsghdr(tcp, addr, &msg))
- dumpiov_upto(tcp, msg.msg_iovlen, (long)msg.msg_iov, data_size);
-}
-
-static void
-printmmsghdr(struct tcb *tcp, long addr, unsigned int idx, unsigned long msg_len)
-{
- struct mmsghdr mmsg;
-
- if (extractmmsghdr(tcp, addr, idx, &mmsg)) {
- tprints("{");
- do_msghdr(tcp, &mmsg.msg_hdr, msg_len ? msg_len : mmsg.msg_len);
- tprintf(", %u}", mmsg.msg_len);
- }
- else
- printaddr(addr);
-}
-
-static void
-decode_mmsg(struct tcb *tcp, unsigned long msg_len)
-{
- /* mmsgvec */
- if (syserror(tcp)) {
- printaddr(tcp->u_arg[1]);
- } else {
- unsigned int len = tcp->u_rval;
- unsigned int i;
-
- tprints("{");
- for (i = 0; i < len; ++i) {
- if (i)
- tprints(", ");
- printmmsghdr(tcp, tcp->u_arg[1], i, msg_len);
- }
- tprints("}");
- }
- /* vlen */
- tprintf(", %u, ", (unsigned int) tcp->u_arg[2]);
- /* flags */
- printflags(msg_flags, tcp->u_arg[3], "MSG_???");
-}
-
-void
-dumpiov_in_mmsghdr(struct tcb *tcp, long addr)
-{
- unsigned int len = tcp->u_rval;
- unsigned int i;
- struct mmsghdr mmsg;
-
- for (i = 0; i < len; ++i) {
- if (extractmmsghdr(tcp, addr, i, &mmsg)) {
- tprintf(" = %lu buffers in vector %u\n",
- (unsigned long)mmsg.msg_hdr.msg_iovlen, i);
- dumpiov_upto(tcp, mmsg.msg_hdr.msg_iovlen,
- (long)mmsg.msg_hdr.msg_iov, mmsg.msg_len);
- }