diff options
Diffstat (limited to 'drivers/char/random.c')
| -rw-r--r-- | drivers/char/random.c | 64 |
1 files changed, 10 insertions, 54 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c index 04b505e5a5e2..8258982b49ec 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -1245,112 +1245,68 @@ static int proc_do_uuid(ctl_table *table, int write, if (uuid[8] == 0) generate_random_uuid(uuid); - sprintf(buf, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-" - "%02x%02x%02x%02x%02x%02x", - uuid[0], uuid[1], uuid[2], uuid[3], - uuid[4], uuid[5], uuid[6], uuid[7], - uuid[8], uuid[9], uuid[10], uuid[11], - uuid[12], uuid[13], uuid[14], uuid[15]); + sprintf(buf, "%pU", uuid); + fake_table.data = buf; fake_table.maxlen = sizeof(buf); return proc_dostring(&fake_table, write, buffer, lenp, ppos); } -static int uuid_strategy(ctl_table *table, - void __user *oldval, size_t __user *oldlenp, - void __user *newval, size_t newlen) -{ - unsigned char tmp_uuid[16], *uuid; - unsigned int len; - - if (!oldval || !oldlenp) - return 1; - - uuid = table->data; - if (!uuid) { - uuid = tmp_uuid; - uuid[8] = 0; - } - if (uuid[8] == 0) - generate_random_uuid(uuid); - - if (get_user(len, oldlenp)) - return -EFAULT; - if (len) { - if (len > 16) - len = 16; - if (copy_to_user(oldval, uuid, len) || - put_user(len, oldlenp)) - return -EFAULT; - } - return 1; -} - static int sysctl_poolsize = INPUT_POOL_WORDS * 32; ctl_table random_table[] = { { - .ctl_name = RANDOM_POOLSIZE, .procname = "poolsize", .data = &sysctl_poolsize, .maxlen = sizeof(int), .mode = 0444, - .proc_handler = &proc_dointvec, + .proc_handler = proc_dointvec, }, { - .ctl_name = RANDOM_ENTROPY_COUNT, .procname = "entropy_avail", .maxlen = sizeof(int), .mode = 0444, - .proc_handler = &proc_dointvec, + .proc_handler = proc_dointvec, .data = &input_pool.entropy_count, }, { - .ctl_name = RANDOM_READ_THRESH, .procname = "read_wakeup_threshold", .data = &random_read_wakeup_thresh, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = &proc_dointvec_minmax, - .strategy = &sysctl_intvec, + .proc_handler = proc_dointvec_minmax, .extra1 = &min_read_thresh, .extra2 = &max_read_thresh, }, { - .ctl_name = RANDOM_WRITE_THRESH, .procname = "write_wakeup_threshold", .data = &random_write_wakeup_thresh, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = &proc_dointvec_minmax, - .strategy = &sysctl_intvec, + .proc_handler = proc_dointvec_minmax, .extra1 = &min_write_thresh, .extra2 = &max_write_thresh, }, { - .ctl_name = RANDOM_BOOT_ID, .procname = "boot_id", .data = &sysctl_bootid, .maxlen = 16, .mode = 0444, - .proc_handler = &proc_do_uuid, - .strategy = &uuid_strategy, + .proc_handler = proc_do_uuid, }, { - .ctl_name = RANDOM_UUID, .procname = "uuid", .maxlen = 16, .mode = 0444, - .proc_handler = &proc_do_uuid, - .strategy = &uuid_strategy, + .proc_handler = proc_do_uuid, }, - { .ctl_name = 0 } + { } }; #endif /* CONFIG_SYSCTL */ /******************************************************************** * - * Random funtions for networking + * Random functions for networking * ********************************************************************/ |