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111 lines
2.5 KiB
111 lines
2.5 KiB
4 months ago
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2018 Richard Palethorpe <rpalethorpe@suse.com>
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* Nicolai Stange <nstange@suse.de>
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*/
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#include <errno.h>
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#include <stdio.h>
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#define TST_NO_DEFAULT_MAIN
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#include "tst_test.h"
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#include "tst_crypto.h"
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#include "tst_netlink.h"
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void tst_crypto_open(struct tst_crypto_session *ses)
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{
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TEST(socket(AF_NETLINK, SOCK_DGRAM, NETLINK_CRYPTO));
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if (TST_RET < 0 && TST_ERR == EPROTONOSUPPORT)
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tst_brk(TCONF | TTERRNO, "NETLINK_CRYPTO is probably disabled");
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if (TST_RET < 0) {
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tst_brk(TBROK | TTERRNO,
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"socket(AF_NETLINK, SOCK_DGRAM, NETLINK_CRYPTO)");
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}
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ses->fd = TST_RET;
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ses->seq_num = 0;
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}
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void tst_crypto_close(struct tst_crypto_session *ses)
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{
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SAFE_CLOSE(ses->fd);
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}
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static int tst_crypto_recv_ack(struct tst_crypto_session *ses)
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{
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uint32_t len;
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char buf[BUFSIZ];
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struct nlmsghdr *nh;
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len = SAFE_NETLINK_RECV(ses->fd, buf, sizeof(buf));
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for (nh = (struct nlmsghdr *) buf;
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NLMSG_OK(nh, len);
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nh = NLMSG_NEXT(nh, len)) {
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if (nh->nlmsg_seq != ses->seq_num) {
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tst_brk(TBROK,
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"Message out of sequence; type=0%hx, seq_num=%u (not %u)",
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nh->nlmsg_type, nh->nlmsg_seq, ses->seq_num);
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}
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/* Acks use the error message type with error number set to
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* zero. Ofcourse we could also receive an actual error.
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*/
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if (nh->nlmsg_type == NLMSG_ERROR)
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return ((struct nlmsgerr *)NLMSG_DATA(nh))->error;
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tst_brk(TBROK, "Unexpected message type; type=0x%hx, seq_num=%u",
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nh->nlmsg_type, nh->nlmsg_seq);
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}
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tst_brk(TBROK, "Empty message from netlink socket?");
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return ENODATA;
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}
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int tst_crypto_add_alg(struct tst_crypto_session *ses,
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const struct crypto_user_alg *alg)
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{
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struct nlmsghdr nh = {
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.nlmsg_len = sizeof(struct nlmsghdr) + sizeof(*alg),
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.nlmsg_type = CRYPTO_MSG_NEWALG,
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.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
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.nlmsg_seq = ++(ses->seq_num),
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.nlmsg_pid = 0,
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};
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SAFE_NETLINK_SEND(ses->fd, &nh, alg);
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return tst_crypto_recv_ack(ses);
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}
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int tst_crypto_del_alg(struct tst_crypto_session *ses,
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const struct crypto_user_alg *alg)
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{
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unsigned int i = 0;
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struct nlmsghdr nh = {
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.nlmsg_len = sizeof(struct nlmsghdr) + sizeof(*alg),
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.nlmsg_type = CRYPTO_MSG_DELALG,
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.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
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.nlmsg_pid = 0,
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};
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while (1) {
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nh.nlmsg_seq = ++(ses->seq_num),
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SAFE_NETLINK_SEND(ses->fd, &nh, alg);
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TEST(tst_crypto_recv_ack(ses));
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if (TST_RET != -EBUSY || i >= ses->retries)
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break;
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if (usleep(1) && errno != EINTR)
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tst_brk(TBROK | TERRNO, "usleep(1)");
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++i;
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}
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return TST_RET;
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}
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