--- /dev/null
+/*
+ * Check decoding of kexec_file_load syscall.
+ *
+ * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "tests.h"
+
+#include <asm/unistd.h>
+
+#ifdef __NR_kexec_file_load
+
+# include <inttypes.h>
+# include <stdio.h>
+# include <unistd.h>
+
+# include "kernel_types.h"
+
+struct strval {
+ kernel_ulong_t val;
+ const char *str64;
+ const char *str32;
+ const char *str;
+};
+
+#define CMDLINE_STR "deadcodebaddatadefaced";
+
+int
+main(void)
+{
+ static const kernel_ulong_t bogus_kernel_fd =
+ (kernel_ulong_t) 0xdeadca57badda7a1ULL;
+ static const kernel_ulong_t bogus_initrd_fd =
+ (kernel_ulong_t) 0xdec0ded1defaced2ULL;
+ static const char cmdline_str[] = CMDLINE_STR;
+ static const char cmdline_short_str[] = "abcdef";
+
+ static const kernel_ulong_t cmdline_lens[] = {
+ 0,
+ (kernel_ulong_t) 0xcaffeeeddeadbeefULL,
+ sizeof(cmdline_str),
+ sizeof(cmdline_str) - 1,
+ sizeof(cmdline_short_str),
+ sizeof(cmdline_short_str) - 1,
+ sizeof(cmdline_short_str) + 1,
+ };
+ static const struct strval flags[] = {
+ { (kernel_ulong_t) 0xbadc0dedda7a1058ULL,
+ "0xbadc0ded", "0x",
+ "da7a1058 /* KEXEC_FILE_??? */", },
+ { 0, "", "", "0" },
+ { 0xdeadbeef, "", "", "KEXEC_FILE_UNLOAD|KEXEC_FILE_ON_CRASH|"
+ "KEXEC_FILE_NO_INITRAMFS|0xdeadbee8" },
+ };
+
+
+ long rc;
+ char *cmdline = tail_memdup(cmdline_str, sizeof(cmdline_str));
+ char *cmdline_short =
+ tail_memdup(cmdline_short_str, sizeof(cmdline_short_str));
+ char cmdline_ptr[sizeof("0x") + sizeof(void *) * 2];
+ char cmdline_short_ptr[sizeof("0x") + sizeof(void *) * 2];
+ unsigned int i;
+ unsigned int j;
+
+ struct strval cmdlines[] = {
+ { (uintptr_t) NULL, "", "", "NULL" },
+ { (uintptr_t) (cmdline + sizeof(cmdline_str)), "", "",
+ cmdline_ptr },
+ { (uintptr_t) cmdline, "", "", "\"deadcodeb\"..." },
+ { (uintptr_t) cmdline, "", "", "\"deadcodeb\"..." },
+ { (uintptr_t) cmdline_short, "", "", "\"abcdef\\0\"" },
+ { (uintptr_t) cmdline_short, "", "", "\"abcdef\"" },
+ { (uintptr_t) cmdline_short, "", "", cmdline_short_ptr },
+ };
+
+
+ snprintf(cmdline_ptr, sizeof(cmdline_ptr), "%p",
+ cmdline + sizeof(cmdline_str));
+ snprintf(cmdline_short_ptr, sizeof(cmdline_short_ptr), "%p",
+ cmdline_short);
+
+ for (i = 0; i < ARRAY_SIZE(flags); i++) {
+ for (j = 0; j < ARRAY_SIZE(cmdlines); j++) {
+ rc = syscall(__NR_kexec_file_load, bogus_kernel_fd,
+ bogus_initrd_fd, cmdline_lens[j],
+ cmdlines[j].val, flags[i].val);
+ printf("kexec_file_load(%d, %d, %llu, %s, %s%s) = %s\n",
+ (int) bogus_kernel_fd, (int) bogus_initrd_fd,
+ (unsigned long long) cmdline_lens[j],
+ cmdlines[j].str,
+ sizeof(kernel_ulong_t) == 8 ? flags[i].str64 :
+ flags[i].str32, flags[i].str, sprintrc(rc));
+ }
+ }
+
+ puts("+++ exited with 0 +++");
+
+ return 0;
+}
+
+#else
+
+SKIP_MAIN_UNDEFINED("__NR_kexec_file_load");
+
+#endif
--- /dev/null
+/*
+ * Check decoding of kexec_load syscall.
+ *
+ * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "tests.h"
+
+#include <asm/unistd.h>
+
+#ifdef __NR_kexec_load
+
+# include <stdio.h>
+# include <unistd.h>
+
+# include "kernel_types.h"
+
+struct strval {
+ kernel_ulong_t val;
+ const char *str64;
+ const char *str32;
+ const char *str;
+};
+
+struct segm {
+ void *buf;
+ size_t bufsz;
+ void *mem;
+ size_t memsz;
+};
+
+int
+main(void)
+{
+ enum {
+ NUM_SEGMS = 17,
+ NUM_SEGMS_UNCUT = 5,
+ NUM_SEGMS_UNCUT_MAX = 9,
+ NUM_SEGMS_CUT = 12,
+ SEGMS_ARRAY_SIZE = sizeof(struct segm) * NUM_SEGMS,
+ };
+
+ static const kernel_ulong_t bogus_zero =
+ sizeof(long) < sizeof(kernel_long_t) ?
+ (kernel_ulong_t) 0xffffffff00000000ULL : 0;
+ static const kernel_ulong_t bogus_entry =
+ (kernel_ulong_t) 0xdeadca57badda7a1ULL;
+ static const kernel_ulong_t bogus_nsegs =
+ (kernel_ulong_t) 0xdec0ded1defaced2ULL;
+
+ static const struct strval flags[] = {
+ { (kernel_ulong_t) 0xbadc0dedda7a1054ULL,
+ "0xda7a0000 /* KEXEC_ARCH_??? */|0xbadc0ded0000",
+ "0xda7a0000 /* KEXEC_ARCH_??? */|0x",
+ "1054 /* KEXEC_??? */" },
+ { 0, "", "", "KEXEC_ARCH_DEFAULT" },
+ { 0x2a0003, "", "",
+ "KEXEC_ARCH_SH|KEXEC_ON_CRASH|KEXEC_PRESERVE_CONTEXT" },
+ { 0xdead0000, "", "", "0xdead0000 /* KEXEC_ARCH_??? */" },
+ };
+
+ const char *errstr;
+ long rc;
+ struct segm *segms = tail_alloc(SEGMS_ARRAY_SIZE);
+ unsigned int i;
+
+ fill_memory((char *) segms, SEGMS_ARRAY_SIZE);
+ segms[0].buf = segms[0].mem = NULL;
+
+ rc = syscall(__NR_kexec_load, bogus_zero, bogus_zero, bogus_zero,
+ flags[0].val);
+ printf("kexec_load(NULL, 0, NULL, %s%s) = %s\n",
+ sizeof(long) == 8 ? flags[0].str64 : flags[0].str32,
+ flags[0].str, sprintrc(rc));
+
+ rc = syscall(__NR_kexec_load, bogus_entry, bogus_nsegs,
+ segms + SEGMS_ARRAY_SIZE, flags[1].val);
+ printf("kexec_load(%#lx, %lu, %p, %s) = %s\n",
+ (unsigned long) bogus_entry, (unsigned long) bogus_nsegs,
+ segms + SEGMS_ARRAY_SIZE, flags[1].str, sprintrc(rc));
+
+ rc = syscall(__NR_kexec_load, bogus_entry, NUM_SEGMS,
+ segms, flags[2].val);
+ printf("kexec_load(%#lx, %lu, %p, %s) = %s\n",
+ (unsigned long) bogus_entry, (unsigned long) NUM_SEGMS,
+ segms, flags[2].str, sprintrc(rc));
+
+ rc = syscall(__NR_kexec_load, bogus_entry, NUM_SEGMS_CUT,
+ segms, flags[3].val);
+ errstr = sprintrc(rc);
+ printf("kexec_load(%#lx, %lu, [{buf=NULL, bufsz=%zu, mem=NULL, "
+ "memsz=%zu}, ",
+ (unsigned long) bogus_entry, (unsigned long) NUM_SEGMS_CUT,
+ segms[0].bufsz, segms[0].memsz);
+ for (i = 1; i < NUM_SEGMS_UNCUT_MAX; i++)
+ printf("{buf=%p, bufsz=%zu, mem=%p, memsz=%zu}, ",
+ segms[i].buf, segms[i].bufsz,
+ segms[i].mem, segms[i].memsz);
+ printf("...], %s) = %s\n", flags[3].str, errstr);
+
+ rc = syscall(__NR_kexec_load, bogus_entry, NUM_SEGMS_CUT,
+ segms + (NUM_SEGMS - NUM_SEGMS_UNCUT_MAX),
+ flags[0].val);
+ errstr = sprintrc(rc);
+ printf("kexec_load(%#lx, %lu, [",
+ (unsigned long) bogus_entry, (unsigned long) NUM_SEGMS_CUT);
+ for (i = NUM_SEGMS - NUM_SEGMS_UNCUT_MAX; i < NUM_SEGMS; i++)
+ printf("{buf=%p, bufsz=%zu, mem=%p, memsz=%zu}, ",
+ segms[i].buf, segms[i].bufsz,
+ segms[i].mem, segms[i].memsz);
+ printf("%p], %s%s) = %s\n",
+ segms + NUM_SEGMS,
+ sizeof(long) == 8 ? flags[0].str64 : flags[0].str32,
+ flags[0].str, errstr);
+
+ rc = syscall(__NR_kexec_load, bogus_entry, NUM_SEGMS_UNCUT,
+ segms + (NUM_SEGMS - NUM_SEGMS_UNCUT),
+ flags[1].val);
+ errstr = sprintrc(rc);
+ printf("kexec_load(%#lx, %lu, [",
+ (unsigned long) bogus_entry, (unsigned long) NUM_SEGMS_UNCUT);
+ for (i = NUM_SEGMS - NUM_SEGMS_UNCUT; i < NUM_SEGMS; i++)
+ printf("{buf=%p, bufsz=%zu, mem=%p, memsz=%zu}%s",
+ segms[i].buf, segms[i].bufsz,
+ segms[i].mem, segms[i].memsz,
+ (i == NUM_SEGMS - 1) ? "" : ", ");
+ printf("], %s) = %s\n", flags[1].str, errstr);
+
+ rc = syscall(__NR_kexec_load, bogus_entry, NUM_SEGMS_CUT,
+ segms + 1, flags[2].val);
+ errstr = sprintrc(rc);
+ printf("kexec_load(%#lx, %lu, [",
+ (unsigned long) bogus_entry, (unsigned long) NUM_SEGMS_CUT);
+ for (i = 1; i < NUM_SEGMS_UNCUT_MAX + 1; i++)
+ printf("{buf=%p, bufsz=%zu, mem=%p, memsz=%zu}, ",
+ segms[i].buf, segms[i].bufsz,
+ segms[i].mem, segms[i].memsz);
+ printf("...], %s) = %s\n", flags[2].str, errstr);
+
+ puts("+++ exited with 0 +++");
+
+ return 0;
+}
+
+#else
+
+SKIP_MAIN_UNDEFINED("__NR_kexec_load");
+
+#endif
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