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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 | /* Heavily copied from libkcapi 2015 - 2017, Stephan Mueller <smueller@chronox.de> */
#include <errno.h>
#include <linux/cryptouser.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#define CR_RTA(x) ((struct rtattr *)(((char *)(x)) + NLMSG_ALIGN(sizeof(struct crypto_user_alg))))
static int get_stat(const char *drivername)
{
struct {
struct nlmsghdr n;
struct crypto_user_alg cru;
} req;
struct sockaddr_nl nl;
int sd = 0, ret;
socklen_t addr_len;
struct iovec iov;
struct msghdr msg;
char buf[4096];
struct nlmsghdr *res_n = (struct nlmsghdr *)buf;
struct crypto_user_alg *cru_res = NULL;
int res_len = 0;
struct rtattr *tb[CRYPTOCFGA_MAX + 1];
struct rtattr *rta;
struct nlmsgerr *errmsg;
memset(&req, 0, sizeof(req));
memset(&buf, 0, sizeof(buf));
memset(&msg, 0, sizeof(msg));
req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.cru));
req.n.nlmsg_flags = NLM_F_REQUEST;
req.n.nlmsg_type = CRYPTO_MSG_GETSTAT;
req.n.nlmsg_seq = time(NULL);
strncpy(req.cru.cru_driver_name, drivername, strlen(drivername));
sd = socket(AF_NETLINK, SOCK_RAW, NETLINK_CRYPTO);
if (sd < 0) {
fprintf(stderr, "Netlink error: cannot open netlink socket");
return -errno;
}
memset(&nl, 0, sizeof(nl));
nl.nl_family = AF_NETLINK;
if (bind(sd, (struct sockaddr *)&nl, sizeof(nl)) < 0) {
ret = -errno;
fprintf(stderr, "Netlink error: cannot bind netlink socket");
goto out;
}
/* sanity check that netlink socket was successfully opened */
addr_len = sizeof(nl);
if (getsockname(sd, (struct sockaddr *)&nl, &addr_len) < 0) {
ret = -errno;
printf("Netlink error: cannot getsockname");
goto out;
}
if (addr_len != sizeof(nl)) {
ret = -errno;
printf("Netlink error: wrong address length %d", addr_len);
goto out;
}
if (nl.nl_family != AF_NETLINK) {
ret = -errno;
printf("Netlink error: wrong address family %d",
nl.nl_family);
goto out;
}
memset(&nl, 0, sizeof(nl));
nl.nl_family = AF_NETLINK;
iov.iov_base = (void *)&req.n;
iov.iov_len = req.n.nlmsg_len;
msg.msg_name = &nl;
msg.msg_namelen = sizeof(nl);
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
if (sendmsg(sd, &msg, 0) < 0) {
ret = -errno;
printf("Netlink error: sendmsg failed");
goto out;
}
memset(buf, 0, sizeof(buf));
iov.iov_base = buf;
while (1) {
iov.iov_len = sizeof(buf);
ret = recvmsg(sd, &msg, 0);
if (ret < 0) {
if (errno == EINTR || errno == EAGAIN)
continue;
ret = -errno;
printf("Netlink error: netlink receive error");
goto out;
}
if (ret == 0) {
ret = -errno;
printf("Netlink error: no data");
goto out;
}
if (ret > sizeof(buf)) {
ret = -errno;
printf("Netlink error: received too much data");
goto out;
}
break;
}
ret = -EFAULT;
res_len = res_n->nlmsg_len;
if (res_n->nlmsg_type == NLMSG_ERROR) {
errmsg = NLMSG_DATA(res_n);
fprintf(stderr, "Fail with %d\n", errmsg->error);
ret = errmsg->error;
goto out;
}
if (res_n->nlmsg_type == CRYPTO_MSG_GETSTAT) {
cru_res = NLMSG_DATA(res_n);
res_len -= NLMSG_SPACE(sizeof(*cru_res));
}
if (res_len < 0) {
printf("Netlink error: nlmsg len %d\n", res_len);
goto out;
}
if (!cru_res) {
ret = -EFAULT;
printf("Netlink error: no cru_res\n");
goto out;
}
rta = CR_RTA(cru_res);
memset(tb, 0, sizeof(struct rtattr *) * (CRYPTOCFGA_MAX + 1));
while (RTA_OK(rta, res_len)) {
if ((rta->rta_type <= CRYPTOCFGA_MAX) && (!tb[rta->rta_type]))
tb[rta->rta_type] = rta;
rta = RTA_NEXT(rta, res_len);
}
if (res_len) {
printf("Netlink error: unprocessed data %d",
res_len);
goto out;
}
if (tb[CRYPTOCFGA_STAT_HASH]) {
struct rtattr *rta = tb[CRYPTOCFGA_STAT_HASH];
struct crypto_stat_hash *rhash =
(struct crypto_stat_hash *)RTA_DATA(rta);
printf("%s\tHash\n\tHash: %llu bytes: %llu\n\tErrors: %llu\n",
drivername,
rhash->stat_hash_cnt, rhash->stat_hash_tlen,
rhash->stat_err_cnt);
} else if (tb[CRYPTOCFGA_STAT_COMPRESS]) {
struct rtattr *rta = tb[CRYPTOCFGA_STAT_COMPRESS];
struct crypto_stat_compress *rblk =
(struct crypto_stat_compress *)RTA_DATA(rta);
printf("%s\tCompress\n\tCompress: %llu bytes: %llu\n\tDecompress: %llu bytes: %llu\n\tErrors: %llu\n",
drivername,
rblk->stat_compress_cnt, rblk->stat_compress_tlen,
rblk->stat_decompress_cnt, rblk->stat_decompress_tlen,
rblk->stat_err_cnt);
} else if (tb[CRYPTOCFGA_STAT_ACOMP]) {
struct rtattr *rta = tb[CRYPTOCFGA_STAT_ACOMP];
struct crypto_stat_compress *rcomp =
(struct crypto_stat_compress *)RTA_DATA(rta);
printf("%s\tACompress\n\tCompress: %llu bytes: %llu\n\tDecompress: %llu bytes: %llu\n\tErrors: %llu\n",
drivername,
rcomp->stat_compress_cnt, rcomp->stat_compress_tlen,
rcomp->stat_decompress_cnt, rcomp->stat_decompress_tlen,
rcomp->stat_err_cnt);
} else if (tb[CRYPTOCFGA_STAT_AEAD]) {
struct rtattr *rta = tb[CRYPTOCFGA_STAT_AEAD];
struct crypto_stat_aead *raead =
(struct crypto_stat_aead *)RTA_DATA(rta);
printf("%s\tAEAD\n\tEncrypt: %llu bytes: %llu\n\tDecrypt: %llu bytes: %llu\n\tErrors: %llu\n",
drivername,
raead->stat_encrypt_cnt, raead->stat_encrypt_tlen,
raead->stat_decrypt_cnt, raead->stat_decrypt_tlen,
raead->stat_err_cnt);
} else if (tb[CRYPTOCFGA_STAT_BLKCIPHER]) {
struct rtattr *rta = tb[CRYPTOCFGA_STAT_BLKCIPHER];
struct crypto_stat_cipher *rblk =
(struct crypto_stat_cipher *)RTA_DATA(rta);
printf("%s\tCipher\n\tEncrypt: %llu bytes: %llu\n\tDecrypt: %llu bytes: %llu\n\tErrors: %llu\n",
drivername,
rblk->stat_encrypt_cnt, rblk->stat_encrypt_tlen,
rblk->stat_decrypt_cnt, rblk->stat_decrypt_tlen,
rblk->stat_err_cnt);
} else if (tb[CRYPTOCFGA_STAT_AKCIPHER]) {
struct rtattr *rta = tb[CRYPTOCFGA_STAT_AKCIPHER];
struct crypto_stat_akcipher *rblk =
(struct crypto_stat_akcipher *)RTA_DATA(rta);
printf("%s\tAkcipher\n\tEncrypt: %llu bytes: %llu\n\tDecrypt: %llu bytes: %llu\n\tSign: %llu\n\tVerify: %llu\n\tErrors: %llu\n",
drivername,
rblk->stat_encrypt_cnt, rblk->stat_encrypt_tlen,
rblk->stat_decrypt_cnt, rblk->stat_decrypt_tlen,
rblk->stat_sign_cnt, rblk->stat_verify_cnt,
rblk->stat_err_cnt);
} else if (tb[CRYPTOCFGA_STAT_CIPHER]) {
struct rtattr *rta = tb[CRYPTOCFGA_STAT_CIPHER];
struct crypto_stat_cipher *rblk =
(struct crypto_stat_cipher *)RTA_DATA(rta);
printf("%s\tcipher\n\tEncrypt: %llu bytes: %llu\n\tDecrypt: %llu bytes: %llu\n\tErrors: %llu\n",
drivername,
rblk->stat_encrypt_cnt, rblk->stat_encrypt_tlen,
rblk->stat_decrypt_cnt, rblk->stat_decrypt_tlen,
rblk->stat_err_cnt);
} else if (tb[CRYPTOCFGA_STAT_RNG]) {
struct rtattr *rta = tb[CRYPTOCFGA_STAT_RNG];
struct crypto_stat_rng *rrng =
(struct crypto_stat_rng *)RTA_DATA(rta);
printf("%s\tRNG\n\tSeed: %llu\n\tGenerate: %llu bytes: %llu\n\tErrors: %llu\n",
drivername,
rrng->stat_seed_cnt,
rrng->stat_generate_cnt, rrng->stat_generate_tlen,
rrng->stat_err_cnt);
} else if (tb[CRYPTOCFGA_STAT_KPP]) {
struct rtattr *rta = tb[CRYPTOCFGA_STAT_KPP];
struct crypto_stat_kpp *rkpp =
(struct crypto_stat_kpp *)RTA_DATA(rta);
printf("%s\tKPP\n\tSetsecret: %llu\n\tGenerate public key: %llu\n\tCompute_shared_secret: %llu\n\tErrors: %llu\n",
drivername,
rkpp->stat_setsecret_cnt,
rkpp->stat_generate_public_key_cnt,
rkpp->stat_compute_shared_secret_cnt,
rkpp->stat_err_cnt);
} else {
fprintf(stderr, "%s is of an unknown algorithm\n", drivername);
}
ret = 0;
out:
close(sd);
return ret;
}
int main(int argc, const char *argv[])
{
char buf[4096];
FILE *procfd;
int i, lastspace;
int ret;
procfd = fopen("/proc/crypto", "r");
if (!procfd) {
ret = errno;
fprintf(stderr, "Cannot open /proc/crypto %s\n", strerror(errno));
return ret;
}
if (argc > 1) {
if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
printf("Usage: %s [-h|--help] display this help\n", argv[0]);
printf("Usage: %s display all crypto statistics\n", argv[0]);
printf("Usage: %s drivername1 drivername2 ... = display crypto statistics about drivername1 ...\n", argv[0]);
return 0;
}
for (i = 1; i < argc; i++) {
ret = get_stat(argv[i]);
if (ret) {
fprintf(stderr, "Failed with %s\n", strerror(-ret));
return ret;
}
}
return 0;
}
while (fgets(buf, sizeof(buf), procfd)) {
if (!strncmp(buf, "driver", 6)) {
lastspace = 0;
i = 0;
while (i < strlen(buf)) {
i++;
if (buf[i] == ' ')
lastspace = i;
}
buf[strlen(buf) - 1] = '\0';
ret = get_stat(buf + lastspace + 1);
if (ret) {
fprintf(stderr, "Failed with %s\n", strerror(-ret));
goto out;
}
}
}
out:
fclose(procfd);
return ret;
}
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