granicus.if.org Git - strace/blob - tests/netlink_crypto.c

   1 /*
   2  * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
   3  * Copyright (c) 2017-2018 The strace developers.
   4  * All rights reserved.
   5  *
   6  * SPDX-License-Identifier: GPL-2.0-or-later
   7  */
   8
   9 #include "tests.h"
  10
  11 #ifdef HAVE_LINUX_CRYPTOUSER_H
  12
  13 # include <stdio.h>
  14 # include <unistd.h>
  15 # include <sys/socket.h>
  16 # include <linux/cryptouser.h>
  17 # include "test_netlink.h"
  18
  19 static void
  20 test_nlmsg_type(const int fd)
  21 {
  22         long rc;
  23         struct nlmsghdr nlh = {
  24                 .nlmsg_len = sizeof(nlh),
  25                 .nlmsg_type = CRYPTO_MSG_NEWALG,
  26                 .nlmsg_flags = NLM_F_REQUEST,
  27         };
  28
  29         rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
  30         printf("sendto(%d, {len=%u, type=CRYPTO_MSG_NEWALG"
  31                ", flags=NLM_F_REQUEST, seq=0, pid=0}"
  32                ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
  33                fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
  34 }
  35
  36 static void
  37 test_nlmsg_flags(const int fd)
  38 {
  39         long rc;
  40         struct nlmsghdr nlh = {
  41                 .nlmsg_len = sizeof(nlh),
  42         };
  43
  44         nlh.nlmsg_type = CRYPTO_MSG_GETALG;
  45         nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
  46         rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
  47         printf("sendto(%d, {len=%u, type=CRYPTO_MSG_GETALG"
  48                ", flags=NLM_F_REQUEST|NLM_F_DUMP, seq=0, pid=0}"
  49                ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
  50                fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
  51
  52         nlh.nlmsg_type = CRYPTO_MSG_NEWALG;
  53         nlh.nlmsg_flags = NLM_F_ECHO | NLM_F_REPLACE;
  54         rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
  55         printf("sendto(%d, {len=%u, type=CRYPTO_MSG_NEWALG"
  56                ", flags=NLM_F_ECHO|NLM_F_REPLACE, seq=0, pid=0}"
  57                ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
  58                fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
  59
  60         nlh.nlmsg_type = CRYPTO_MSG_DELALG;
  61         nlh.nlmsg_flags = NLM_F_ECHO | NLM_F_NONREC;
  62         rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
  63         printf("sendto(%d, {len=%u, type=CRYPTO_MSG_DELALG"
  64                ", flags=NLM_F_ECHO|NLM_F_NONREC, seq=0, pid=0}"
  65                ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
  66                fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
  67
  68         nlh.nlmsg_type = CRYPTO_MSG_UPDATEALG;
  69         nlh.nlmsg_flags = NLM_F_REPLACE;
  70         rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
  71         printf("sendto(%d, {len=%u, type=CRYPTO_MSG_UPDATEALG"
  72                ", flags=%#x /* NLM_F_??? */, seq=0, pid=0}"
  73                ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
  74                fd, nlh.nlmsg_len, NLM_F_REPLACE,
  75                (unsigned) sizeof(nlh), sprintrc(rc));
  76 }
  77
  78 static void
  79 test_crypto_msg_newalg(const int fd)
  80 {
  81         struct crypto_user_alg alg = {
  82                 .cru_name = "abcd",
  83                 .cru_driver_name = "efgh",
  84                 .cru_module_name = "dcba",
  85                 .cru_type = 0xabcdfabc,
  86                 .cru_mask = 0xfedabacd,
  87                 .cru_refcnt = 0xbcacfacd,
  88                 .cru_flags = 0xefacdbad
  89         };
  90         void *const nlh0 = midtail_alloc(NLMSG_HDRLEN, sizeof(alg));
  91
  92         TEST_NETLINK_OBJECT_EX(fd, nlh0,
  93                                CRYPTO_MSG_NEWALG, NLM_F_REQUEST,
  94                                alg, print_quoted_memory,
  95                                printf("{cru_name=\"abcd\""
  96                                       ", cru_driver_name=\"efgh\""
  97                                       ", cru_module_name=\"dcba\"");
  98                                PRINT_FIELD_X(", ", alg, cru_type);
  99                                PRINT_FIELD_X(", ", alg, cru_mask);
 100                                PRINT_FIELD_U(", ", alg, cru_refcnt);
 101                                PRINT_FIELD_X(", ", alg, cru_flags);
 102                                printf("}"));
 103
 104         fill_memory_ex(alg.cru_name, sizeof(alg.cru_name), '0', 10);
 105         fill_memory_ex(alg.cru_driver_name, sizeof(alg.cru_driver_name),
 106                        'a', 'z' - 'a' + 1);
 107         fill_memory_ex(alg.cru_module_name, sizeof(alg.cru_module_name),
 108                        'A', 'Z' - 'A' + 1);
 109
 110         TEST_NETLINK_OBJECT_EX(fd, nlh0,
 111                                CRYPTO_MSG_NEWALG, NLM_F_REQUEST,
 112                                alg, print_quoted_memory,
 113                                printf("{cru_name=");
 114                                print_quoted_memory(alg.cru_name,
 115                                        sizeof(alg.cru_name) - 1);
 116                                printf("..., cru_driver_name=");
 117                                print_quoted_memory(alg.cru_driver_name,
 118                                        sizeof(alg.cru_driver_name) - 1);
 119                                printf("..., cru_module_name=");
 120                                print_quoted_memory(alg.cru_module_name,
 121                                        sizeof(alg.cru_module_name) - 1);
 122                                PRINT_FIELD_X("..., ", alg, cru_type);
 123                                PRINT_FIELD_X(", ", alg, cru_mask);
 124                                PRINT_FIELD_U(", ", alg, cru_refcnt);
 125                                PRINT_FIELD_X(", ", alg, cru_flags);
 126                                printf("}"));
 127 }
 128
 129 static void
 130 test_crypto_msg_unspec(const int fd)
 131 {
 132         void *const nlh0 = midtail_alloc(NLMSG_HDRLEN, 4);
 133
 134         TEST_NETLINK_(fd, nlh0,
 135                       0xffff, "0xffff /* CRYPTO_MSG_??? */",
 136                       NLM_F_REQUEST, "NLM_F_REQUEST",
 137                       4, "abcd", 4, printf("\"\\x61\\x62\\x63\\x64\""));
 138 }
 139
 140 int
 141 main(void)
 142 {
 143         skip_if_unavailable("/proc/self/fd/");
 144
 145         int fd = create_nl_socket(NETLINK_CRYPTO);
 146
 147         test_nlmsg_type(fd);
 148         test_nlmsg_flags(fd);
 149         test_crypto_msg_newalg(fd);
 150         test_crypto_msg_unspec(fd);
 151
 152         printf("+++ exited with 0 +++\n");
 153
 154         return 0;
 155 }
 156
 157 #else
 158
 159 SKIP_MAIN_UNDEFINED("HAVE_LINUX_CRYPTOUSER_H")
 160
 161 #endif