dh/ima-evm-utils
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Changed to conform Linux kernel coding style

Browse Source 
Changed to conform Linux kernel coding style, except 80 characters
line length limit.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
This commit is contained in:
Dmitry Kasatkin
2012-02-01 10:46:21 +02:00
parent 78494ab370
commit fed7fb6933
1 changed files with 177 additions and 181 deletions
Download Patch File Download Diff File Expand all files Collapse all files

146
src/evmctl.c
View File

@@ -56,8 +56,8 @@
#define USE_FPRINTF
#ifdef USE_FPRINTF
#define do_log(level, fmt, args...) if (level <= verbose) fprintf(stderr, fmt, ##args)
#define do_log_dump(level, p, len) if (level <= verbose) do_dump(stderr, p, len)
#define do_log(level, fmt, args...) ({ if (level <= verbose) fprintf(stderr, fmt, ##args); })
#define do_log_dump(level, p, len) ({ if (level <= verbose) do_dump(stderr, p, len); })
#else
#define do_log(level, fmt, args...) syslog(level, fmt, ##args)
#define do_log_dump(p, len)
@@ -107,25 +107,23 @@ enum digest_algo {
};
struct pubkey_hdr {
uint8_t version; /* key format version */
time_t timestamp; /* key made, always 0 for now */
uint8_t algo;
uint8_t nmpi;
char mpi[0];
uint8_t version; /* key format version */
time_t timestamp; /* key made, always 0 for now */
uint8_t algo;
uint8_t nmpi;
char mpi[0];
} __attribute__ ((packed));
struct signature_hdr {
uint8_t version; /* signature format version */
time_t timestamp; /* signature made */
uint8_t algo;
uint8_t hash;
uint8_t keyid[8];
uint8_t nmpi;
char mpi[0];
uint8_t version; /* signature format version */
time_t timestamp; /* signature made */
uint8_t algo;
uint8_t hash;
uint8_t keyid[8];
uint8_t nmpi;
char mpi[0];
} __attribute__ ((packed));
static char *evm_config_xattrnames[] = {
"security.selinux",
"security.SMACK64",
@@ -135,35 +133,34 @@ static char *evm_config_xattrnames[] = {
};
struct command {
char *name;
int (*func)(struct command *cmd);
int cmd;
char *arg;
char *msg; /* extra info message */
char *name;
int (*func)(struct command *cmd);
int cmd;
char *arg;
char *msg; /* extra info message */
};
static int verbose = LOG_INFO - 1;
static int g_argc;
static char **g_argv;
static int set_xattr = 1;
static int digest = 0;
static int digsig = 0;
static char *hash_algo = "sha1";
static int binkey = 0;
static char *keypass;
static int verbose = LOG_INFO - 1;
static int g_argc;
static char **g_argv;
static int set_xattr = 1;
static int digest;
static int digsig;
static char *hash_algo = "sha1";
static int binkey;
static char *keypass;
extern struct command cmds[];
struct command cmds[];
static void print_usage(struct command *cmd);
static void do_dump(FILE *fp, const void *ptr, int len)
{
int i;
uint8_t *data = (uint8_t *)ptr;
int i;
uint8_t *data = (uint8_t *) ptr;
for (i = 0; i < len; i++) {
fprintf(fp, "%02x", data[i]);
}
fprintf(fp, "\n");
for (i = 0; i < len; i++)
fprintf(fp, "%02x", data[i]);
fprintf(fp, "\n");
}
static void dump(const void *ptr, int len)
@@ -176,7 +173,7 @@ static inline int get_filesize(const char *filename)
struct stat stats;
/* Need to know the file length */
stat(filename, &stats);
return (int) stats.st_size;
return (int)stats.st_size;
}
static inline int get_fdsize(int fd)
@@ -184,7 +181,7 @@ static inline int get_fdsize(int fd)
struct stat stats;
/* Need to know the file length */
fstat(fd, &stats);
return (int) stats.st_size;
return (int)stats.st_size;
}
static int bin2file(const char *file, const char *ext, const unsigned char *data, int len)
@@ -247,7 +244,6 @@ static int key2bin(RSA *key, unsigned char *pub)
offset += sizeof(*pkh);
// MPIs
len = BN_num_bytes(key->n);
b = BN_num_bits(key->n);
pub[offset++] = b >> 8;
@@ -291,7 +287,6 @@ static int read_key(const char *inkey, unsigned char *pub)
return len;
}
static void calc_keyid(uint8_t *keyid, char *str, const unsigned char *pkey, int len)
{
uint8_t sha1[SHA_DIGEST_LENGTH];
@@ -301,12 +296,12 @@ static void calc_keyid(uint8_t *keyid, char *str, const unsigned char *pkey, int
log_debug_dump(pkey, len);
SHA1(pkey, len, sha1);
//sha1[12 - 19] is exactly keyid from gpg file
/* sha1[12 - 19] is exactly keyid from gpg file */
memcpy(keyid, sha1 + 12, 8);
log_debug("keyid:\n");
log_debug_dump(keyid, 8);
id = __be64_to_cpup((__be64 *)keyid);
id = __be64_to_cpup((__be64 *) keyid);
sprintf(str, "%llX", (unsigned long long)id);
log_info("keyid: %s\n", str);
}
@@ -366,7 +361,7 @@ static int sign_hash(const unsigned char *hash, int size, const char *keyfile, u
len = err;
/* we add bit length of the signature to make it gnupg compatible */
blen = (uint16_t *)(sig + sizeof(*hdr));
blen = (uint16_t *) (sig + sizeof(*hdr));
*blen = __cpu_to_be16(len << 3);
len += sizeof(*hdr) + 2;
log_info("evm/ima signature: %d bytes\n", len);
@@ -425,7 +420,7 @@ static int calc_evm_hash(const char *file, const char *keyfile, unsigned char *h
log_info("no attr: %s\n", *xattrname);
continue;
}
//log_debug("name: %s, value: %s, size: %d\n", *xattrname, xattr_value, err);
/*log_debug("name: %s, value: %s, size: %d\n", *xattrname, xattr_value, err);*/
log_info("name: %s, size: %d\n", *xattrname, err);
log_debug_dump(xattr_value, err);
err = EVP_DigestUpdate(&ctx, xattr_value, err);
@@ -442,7 +437,7 @@ static int calc_evm_hash(const char *file, const char *keyfile, unsigned char *h
hmac_misc.gid = st.st_gid;
hmac_misc.mode = st.st_mode;
err = EVP_DigestUpdate(&ctx, (const unsigned char*)&hmac_misc, sizeof(hmac_misc));
err = EVP_DigestUpdate(&ctx, (const unsigned char *)&hmac_misc, sizeof(hmac_misc));
if (!err) {
log_errno("EVP_DigestUpdate() failed");
return -1;
@@ -483,7 +478,7 @@ static int calc_file_hash(const char *file, uint8_t *hash)
{
EVP_MD_CTX ctx;
const EVP_MD *md;
uint8_t *data;
uint8_t *data;
int err, size, bs = DATA_SIZE;
size_t len;
unsigned int mdlen;
@@ -578,7 +573,7 @@ static int calc_dir_hash(const char *file, uint8_t *hash)
}
while ((de = readdir(dir))) {
//printf("entry: ino: %lu, %s\n", de->d_ino, de->d_name);
/*log_debug("entry: ino: %lu, %s\n", de->d_ino, de->d_name);*/
for (prev = NULL, pos = head; pos; prev = pos, pos = pos->next) {
if (de->d_ino < pos->de.d_ino)
break;
@@ -622,7 +617,7 @@ static int calc_dir_hash(const char *file, uint8_t *hash)
static int hash_ima(const char *file)
{
unsigned char hash[65] = "\x01";// MAX hash size + 1
unsigned char hash[65] = "\x01"; /* MAX hash size + 1 */
int err;
struct stat st;
@@ -788,7 +783,7 @@ static int verify_hash(const unsigned char *hash, int size, unsigned char *sig,
log_errno("Verification failed: %d", err);
return -1;
} else {
//log_info("Verification is OK\n");
/*log_info("Verification is OK\n");*/
printf("Verification is OK\n");
}
@@ -875,11 +870,11 @@ static int cmd_import_bin(struct command *cmd)
inkey = g_argv[optind++];
if (!inkey)
inkey = "/etc/keys/pubkey_evm.bin";
else
ring = g_argv[optind++];
else
ring = g_argv[optind++];
if (!ring)
id = KEY_SPEC_USER_KEYRING;
if (!ring)
id = KEY_SPEC_USER_KEYRING;
else
id = atoi(ring);
@@ -889,7 +884,7 @@ static int cmd_import_bin(struct command *cmd)
calc_keyid(keyid, name, (unsigned char *)key, len);
log_info("Importing public key %s from file %s into keyring %d\n", name, inkey, id);
log_info("Importing public key %s from file %s into keyring %d\n", name, inkey, id);
id = add_key("user", name, key, len, id);
if (id < 0) {
@@ -919,11 +914,11 @@ static int cmd_import(struct command *cmd)
inkey = g_argv[optind++];
if (!inkey)
inkey = "/etc/keys/pubkey_evm.pem";
else
ring = g_argv[optind++];
else
ring = g_argv[optind++];
if (!ring)
id = KEY_SPEC_USER_KEYRING;
if (!ring)
id = KEY_SPEC_USER_KEYRING;
else
id = atoi(ring);
@@ -933,7 +928,7 @@ static int cmd_import(struct command *cmd)
calc_keyid(keyid, name, key, len);
log_info("Importing public key %s from file %s into keyring %d\n", name, inkey, id);
log_info("Importing public key %s from file %s into keyring %d\n", name, inkey, id);
id = add_key("user", name, key, len, id);
if (id < 0) {
@@ -1005,7 +1000,7 @@ static int calc_evm_hmac(const char *file, const char *keyfile, unsigned char *h
log_info("no attr: %s\n", *xattrname);
continue;
}
//log_debug("name: %s, value: %s, size: %d\n", *xattrname, xattr_value, err);
/*log_debug("name: %s, value: %s, size: %d\n", *xattrname, xattr_value, err);*/
log_info("name: %s, size: %d\n", *xattrname, err);
log_debug_dump(xattr_value, err);
HMAC_Update(&ctx, xattr_value, err);
@@ -1018,7 +1013,7 @@ static int calc_evm_hmac(const char *file, const char *keyfile, unsigned char *h
hmac_misc.gid = st.st_gid;
hmac_misc.mode = st.st_mode;
HMAC_Update(&ctx, (const unsigned char*)&hmac_misc, sizeof(hmac_misc));
HMAC_Update(&ctx, (const unsigned char *)&hmac_misc, sizeof(hmac_misc));
HMAC_Final(&ctx, hash, &mdlen);
HMAC_CTX_cleanup(&ctx);
@@ -1097,7 +1092,7 @@ static void print_full_usage(struct command *cmd)
static int print_command_usage(struct command *cmds, char *command)
{
struct command *cmd;
struct command *cmd;
for (cmd = cmds; cmd->name; cmd++) {
if (strcmp(cmd->name, command) == 0) {
@@ -1106,12 +1101,12 @@ static int print_command_usage(struct command *cmds, char *command)
}
}
printf("invalid command: %s\n", command);
return 1;
return 1;
}
static void print_all_usage(struct command *cmds)
{
struct command *cmd;
struct command *cmd;
for (cmd = cmds; cmd->name; cmd++) {
if (cmd->arg)
@@ -1123,7 +1118,7 @@ static void print_all_usage(struct command *cmds)
static int call_command(struct command *cmds, char *command)
{
struct command *cmd;
struct command *cmd;
for (cmd = cmds; cmd->name; cmd++) {
if (strcasecmp(cmd->name, command) == 0)
@@ -1151,17 +1146,17 @@ static void usage(void)
struct command cmds[] = {
{"help", cmd_help, 0, "<command>"},
{"import", cmd_import, 0, "[--bin] inkey keyring", "Import public key (PEM/bin) into the keyring.\n" },
{"convert", cmd_convert, 0, "inkey outkey", "Convert PEM public key into IMA/EVM kernel friendly format.\n" },
{"sign", cmd_sign_evm, 0, "[--imahash | --imasig ] file [key]", "Sign file metadata.\n" },
{"verify", cmd_verify_evm, 0, "file", "Verify EVM signature (for debugging).\n" },
{"ima_sign", cmd_sign_ima, 0, "file [key]", "Sign file content.\n" },
{"ima_hash", cmd_hash_ima, 0, "file", "Hash file content.\n" },
{"hmac", cmd_hmac_evm, 0, "[--imahash | --imasig ] file [key]", "Sign file metadata with HMAC (for debugging).\n" },
{"import", cmd_import, 0, "[--bin] inkey keyring", "Import public key (PEM/bin) into the keyring.\n"},
{"convert", cmd_convert, 0, "inkey outkey", "Convert PEM public key into IMA/EVM kernel friendly format.\n"},
{"sign", cmd_sign_evm, 0, "[--imahash | --imasig ] file [key]", "Sign file metadata.\n"},
{"verify", cmd_verify_evm, 0, "file", "Verify EVM signature (for debugging).\n"},
{"ima_sign", cmd_sign_ima, 0, "file [key]", "Sign file content.\n"},
{"ima_hash", cmd_hash_ima, 0, "file", "Hash file content.\n"},
{"hmac", cmd_hmac_evm, 0, "[--imahash | --imasig ] file [key]", "Sign file metadata with HMAC (for debugging).\n"},
{0, 0, 0, NULL}
};
static struct option opts[] = {
static struct option opts[] = {
{"help", 0, 0, 'h'},
{"inkey", 1, 0, 'k'},
{"imasig", 0, 0, 's'},
@@ -1203,7 +1198,8 @@ int main(int argc, char *argv[])
digsig = 1;
break;
case 'n':
set_xattr = 0; // do not set Extended Attributes... just print signature
/* do not set Extended Attributes... just print signature */
set_xattr = 0;
break;
case 'a':
hash_algo = optarg;