inet_diag.c (cc9263874b42bf98209dce0afe698b550648e770) inet_diag.c (627cc4add53c0470bfd118002669205d222d3a54)
1/*
2 * inet_diag.c Module for monitoring INET transport protocols sockets.
3 *
4 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version

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701{
702 /* Port comparisons put the port in a follow-on inet_diag_bc_op. */
703 *min_len += sizeof(struct inet_diag_bc_op);
704 if (len < *min_len)
705 return false;
706 return true;
707}
708
1/*
2 * inet_diag.c Module for monitoring INET transport protocols sockets.
3 *
4 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version

--- 692 unchanged lines hidden (view full) ---

701{
702 /* Port comparisons put the port in a follow-on inet_diag_bc_op. */
703 *min_len += sizeof(struct inet_diag_bc_op);
704 if (len < *min_len)
705 return false;
706 return true;
707}
708
709static int inet_diag_bc_audit(const void *bytecode, int bytecode_len)
709static int inet_diag_bc_audit(const struct nlattr *attr)
710{
710{
711 const void *bc = bytecode;
712 int len = bytecode_len;
711 const void *bytecode, *bc;
712 int bytecode_len, len;
713
713
714 if (!attr || nla_len(attr) < sizeof(struct inet_diag_bc_op))
715 return -EINVAL;
716
717 bytecode = bc = nla_data(attr);
718 len = bytecode_len = nla_len(attr);
719
714 while (len > 0) {
715 int min_len = sizeof(struct inet_diag_bc_op);
716 const struct inet_diag_bc_op *op = bc;
717
718 switch (op->code) {
719 case INET_DIAG_BC_S_COND:
720 case INET_DIAG_BC_D_COND:
721 if (!valid_hostcond(bc, len, &min_len))

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1015
1016 if (nlh->nlmsg_type >= INET_DIAG_GETSOCK_MAX ||
1017 nlmsg_len(nlh) < hdrlen)
1018 return -EINVAL;
1019
1020 if (nlh->nlmsg_flags & NLM_F_DUMP) {
1021 if (nlmsg_attrlen(nlh, hdrlen)) {
1022 struct nlattr *attr;
720 while (len > 0) {
721 int min_len = sizeof(struct inet_diag_bc_op);
722 const struct inet_diag_bc_op *op = bc;
723
724 switch (op->code) {
725 case INET_DIAG_BC_S_COND:
726 case INET_DIAG_BC_D_COND:
727 if (!valid_hostcond(bc, len, &min_len))

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1021
1022 if (nlh->nlmsg_type >= INET_DIAG_GETSOCK_MAX ||
1023 nlmsg_len(nlh) < hdrlen)
1024 return -EINVAL;
1025
1026 if (nlh->nlmsg_flags & NLM_F_DUMP) {
1027 if (nlmsg_attrlen(nlh, hdrlen)) {
1028 struct nlattr *attr;
1029 int err;
1023
1024 attr = nlmsg_find_attr(nlh, hdrlen,
1025 INET_DIAG_REQ_BYTECODE);
1030
1031 attr = nlmsg_find_attr(nlh, hdrlen,
1032 INET_DIAG_REQ_BYTECODE);
1026 if (!attr ||
1027 nla_len(attr) < sizeof(struct inet_diag_bc_op) ||
1028 inet_diag_bc_audit(nla_data(attr), nla_len(attr)))
1029 return -EINVAL;
1033 err = inet_diag_bc_audit(attr);
1034 if (err)
1035 return err;
1030 }
1031 {
1032 struct netlink_dump_control c = {
1033 .dump = inet_diag_dump_compat,
1034 };
1035 return netlink_dump_start(net->diag_nlsk, skb, nlh, &c);
1036 }
1037 }

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1046
1047 if (nlmsg_len(h) < hdrlen)
1048 return -EINVAL;
1049
1050 if (h->nlmsg_type == SOCK_DIAG_BY_FAMILY &&
1051 h->nlmsg_flags & NLM_F_DUMP) {
1052 if (nlmsg_attrlen(h, hdrlen)) {
1053 struct nlattr *attr;
1036 }
1037 {
1038 struct netlink_dump_control c = {
1039 .dump = inet_diag_dump_compat,
1040 };
1041 return netlink_dump_start(net->diag_nlsk, skb, nlh, &c);
1042 }
1043 }

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1052
1053 if (nlmsg_len(h) < hdrlen)
1054 return -EINVAL;
1055
1056 if (h->nlmsg_type == SOCK_DIAG_BY_FAMILY &&
1057 h->nlmsg_flags & NLM_F_DUMP) {
1058 if (nlmsg_attrlen(h, hdrlen)) {
1059 struct nlattr *attr;
1060 int err;
1054
1055 attr = nlmsg_find_attr(h, hdrlen,
1056 INET_DIAG_REQ_BYTECODE);
1061
1062 attr = nlmsg_find_attr(h, hdrlen,
1063 INET_DIAG_REQ_BYTECODE);
1057 if (!attr ||
1058 nla_len(attr) < sizeof(struct inet_diag_bc_op) ||
1059 inet_diag_bc_audit(nla_data(attr), nla_len(attr)))
1060 return -EINVAL;
1064 err = inet_diag_bc_audit(attr);
1065 if (err)
1066 return err;
1061 }
1062 {
1063 struct netlink_dump_control c = {
1064 .dump = inet_diag_dump,
1065 };
1066 return netlink_dump_start(net->diag_nlsk, skb, h, &c);
1067 }
1068 }

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1068 {
1069 struct netlink_dump_control c = {
1070 .dump = inet_diag_dump,
1071 };
1072 return netlink_dump_start(net->diag_nlsk, skb, h, &c);
1073 }
1074 }

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