^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * What: /sys/kernel/debug/orangefs/debug-help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Date: June 2015
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Contact: Mike Marshall <hubcap@omnibond.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * List of client and kernel debug keywords.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * What: /sys/kernel/debug/orangefs/client-debug
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * Date: June 2015
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * Contact: Mike Marshall <hubcap@omnibond.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * Debug setting for "the client", the userspace
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * helper for the kernel module.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * What: /sys/kernel/debug/orangefs/kernel-debug
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * Date: June 2015
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * Contact: Mike Marshall <hubcap@omnibond.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * Debug setting for the orangefs kernel module.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * Any of the keywords, or comma-separated lists
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * of keywords, from debug-help can be catted to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * client-debug or kernel-debug.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * "none", "all" and "verbose" are special keywords
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * for client-debug. Setting client-debug to "all"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * is kind of like trying to drink water from a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * fire hose, "verbose" triggers most of the same
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * output except for the constant flow of output
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * from the main wait loop.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * "none" and "all" are similar settings for kernel-debug
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * no need for a "verbose".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #include <linux/debugfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #include "orangefs-debugfs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #include "protocol.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #include "orangefs-kernel.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define DEBUG_HELP_STRING_SIZE 4096
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define HELP_STRING_UNINITIALIZED \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) "Client Debug Keywords are unknown until the first time\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) "the client is started after boot.\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define ORANGEFS_KMOD_DEBUG_HELP_FILE "debug-help"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define ORANGEFS_KMOD_DEBUG_FILE "kernel-debug"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define ORANGEFS_CLIENT_DEBUG_FILE "client-debug"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define ORANGEFS_VERBOSE "verbose"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define ORANGEFS_ALL "all"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * An array of client_debug_mask will be built to hold debug keyword/mask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * values fetched from userspace.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct client_debug_mask {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) char *keyword;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) __u64 mask1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) __u64 mask2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static void orangefs_kernel_debug_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) static int orangefs_debug_help_open(struct inode *, struct file *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) static void *help_start(struct seq_file *, loff_t *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) static void *help_next(struct seq_file *, void *, loff_t *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) static void help_stop(struct seq_file *, void *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) static int help_show(struct seq_file *, void *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) static int orangefs_debug_open(struct inode *, struct file *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) static ssize_t orangefs_debug_read(struct file *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) char __user *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) size_t,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) loff_t *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) static ssize_t orangefs_debug_write(struct file *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) const char __user *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) size_t,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) loff_t *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) static int orangefs_prepare_cdm_array(char *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) static void debug_mask_to_string(void *, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static void do_k_string(void *, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) static void do_c_string(void *, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) static int keyword_is_amalgam(char *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) static int check_amalgam_keyword(void *, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) static void debug_string_to_mask(char *, void *, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) static void do_c_mask(int, char *, struct client_debug_mask **);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) static void do_k_mask(int, char *, __u64 **);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) static char kernel_debug_string[ORANGEFS_MAX_DEBUG_STRING_LEN] = "none";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) static char *debug_help_string;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) static char client_debug_string[ORANGEFS_MAX_DEBUG_STRING_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) static char client_debug_array_string[ORANGEFS_MAX_DEBUG_STRING_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) static struct dentry *client_debug_dentry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static struct dentry *debug_dir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) static unsigned int kernel_mask_set_mod_init;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) static int orangefs_debug_disabled = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) static int help_string_initialized;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) static const struct seq_operations help_debug_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) .start = help_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) .next = help_next,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) .stop = help_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) .show = help_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) static const struct file_operations debug_help_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) .open = orangefs_debug_help_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) .read = seq_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) .release = seq_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) .llseek = seq_lseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) static const struct file_operations kernel_debug_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) .open = orangefs_debug_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) .read = orangefs_debug_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) .write = orangefs_debug_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) .llseek = generic_file_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) static int client_all_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) static int client_verbose_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) static struct client_debug_mask *cdm_array;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static int cdm_element_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) static struct client_debug_mask client_debug_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) * Used to protect data in ORANGEFS_KMOD_DEBUG_FILE and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) * ORANGEFS_KMOD_DEBUG_FILE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) static DEFINE_MUTEX(orangefs_debug_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) /* Used to protect data in ORANGEFS_KMOD_DEBUG_HELP_FILE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) static DEFINE_MUTEX(orangefs_help_file_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) * initialize kmod debug operations, create orangefs debugfs dir and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) * ORANGEFS_KMOD_DEBUG_HELP_FILE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) void orangefs_debugfs_init(int debug_mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) /* convert input debug mask to a 64-bit unsigned integer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) orangefs_gossip_debug_mask = (unsigned long long)debug_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) * set the kernel's gossip debug string; invalid mask values will
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) * be ignored.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) debug_mask_to_string(&orangefs_gossip_debug_mask, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) /* remove any invalid values from the mask */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) debug_string_to_mask(kernel_debug_string, &orangefs_gossip_debug_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) * if the mask has a non-zero value, then indicate that the mask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) * was set when the kernel module was loaded. The orangefs dev ioctl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) * command will look at this boolean to determine if the kernel's
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) * debug mask should be overwritten when the client-core is started.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) if (orangefs_gossip_debug_mask != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) kernel_mask_set_mod_init = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) pr_info("%s: called with debug mask: :%s: :%llx:\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) kernel_debug_string,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) (unsigned long long)orangefs_gossip_debug_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) debug_dir = debugfs_create_dir("orangefs", NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) debugfs_create_file(ORANGEFS_KMOD_DEBUG_HELP_FILE, 0444, debug_dir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) debug_help_string, &debug_help_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) orangefs_debug_disabled = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) orangefs_kernel_debug_init();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) * initialize the kernel-debug file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) static void orangefs_kernel_debug_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) int rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) char *k_buffer = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: start\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) k_buffer = kzalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) if (!k_buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) if (strlen(kernel_debug_string) + 1 < ORANGEFS_MAX_DEBUG_STRING_LEN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) strcpy(k_buffer, kernel_debug_string);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) strcat(k_buffer, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) strcpy(k_buffer, "none\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) pr_info("%s: overflow 1!\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) debugfs_create_file(ORANGEFS_KMOD_DEBUG_FILE, 0444, debug_dir, k_buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) &kernel_debug_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: rc:%d:\n", __func__, rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) void orangefs_debugfs_cleanup(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) debugfs_remove_recursive(debug_dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) /* open ORANGEFS_KMOD_DEBUG_HELP_FILE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) static int orangefs_debug_help_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) int rc = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) gossip_debug(GOSSIP_DEBUGFS_DEBUG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) "orangefs_debug_help_open: start\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) if (orangefs_debug_disabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) ret = seq_open(file, &help_debug_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) ((struct seq_file *)(file->private_data))->private = inode->i_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) gossip_debug(GOSSIP_DEBUGFS_DEBUG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) "orangefs_debug_help_open: rc:%d:\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) * I think start always gets called again after stop. Start
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) * needs to return NULL when it is done. The whole "payload"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) * in this case is a single (long) string, so by the second
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) * time we get to start (pos = 1), we're done.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) static void *help_start(struct seq_file *m, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) void *payload = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_start: start\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) mutex_lock(&orangefs_help_file_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) if (*pos == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) payload = m->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) return payload;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) static void *help_next(struct seq_file *m, void *v, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) (*pos)++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_next: start\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) static void help_stop(struct seq_file *m, void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_stop: start\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) mutex_unlock(&orangefs_help_file_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) static int help_show(struct seq_file *m, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_show: start\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) seq_puts(m, v);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) * initialize the client-debug file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) static int orangefs_client_debug_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) int rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) char *c_buffer = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: start\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) c_buffer = kzalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) if (!c_buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) if (strlen(client_debug_string) + 1 < ORANGEFS_MAX_DEBUG_STRING_LEN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) strcpy(c_buffer, client_debug_string);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) strcat(c_buffer, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) strcpy(c_buffer, "none\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) pr_info("%s: overflow! 2\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) client_debug_dentry = debugfs_create_file(ORANGEFS_CLIENT_DEBUG_FILE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 0444,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) debug_dir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) c_buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) &kernel_debug_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: rc:%d:\n", __func__, rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) /* open ORANGEFS_KMOD_DEBUG_FILE or ORANGEFS_CLIENT_DEBUG_FILE.*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) static int orangefs_debug_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) int rc = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) gossip_debug(GOSSIP_DEBUGFS_DEBUG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) "%s: orangefs_debug_disabled: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) orangefs_debug_disabled);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) if (orangefs_debug_disabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) mutex_lock(&orangefs_debug_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) file->private_data = inode->i_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) mutex_unlock(&orangefs_debug_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) gossip_debug(GOSSIP_DEBUGFS_DEBUG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) "orangefs_debug_open: rc: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) static ssize_t orangefs_debug_read(struct file *file,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) char __user *ubuf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) size_t count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) loff_t *ppos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) char *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) int sprintf_ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) ssize_t read_ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) gossip_debug(GOSSIP_DEBUGFS_DEBUG, "orangefs_debug_read: start\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) buf = kmalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) if (!buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) mutex_lock(&orangefs_debug_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) sprintf_ret = sprintf(buf, "%s", (char *)file->private_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) mutex_unlock(&orangefs_debug_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) read_ret = simple_read_from_buffer(ubuf, count, ppos, buf, sprintf_ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) gossip_debug(GOSSIP_DEBUGFS_DEBUG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) "orangefs_debug_read: ret: %zu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) read_ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) return read_ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) static ssize_t orangefs_debug_write(struct file *file,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) const char __user *ubuf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) size_t count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) loff_t *ppos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) char *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) int rc = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) size_t silly = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) char *debug_string;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) struct orangefs_kernel_op_s *new_op = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) struct client_debug_mask c_mask = { NULL, 0, 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) char *s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) gossip_debug(GOSSIP_DEBUGFS_DEBUG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) "orangefs_debug_write: %pD\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) if (count == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) * Thwart users who try to jamb a ridiculous number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) * of bytes into the debug file...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) if (count > ORANGEFS_MAX_DEBUG_STRING_LEN + 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) silly = count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) count = ORANGEFS_MAX_DEBUG_STRING_LEN + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) buf = kzalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) if (!buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) if (copy_from_user(buf, ubuf, count - 1)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) gossip_debug(GOSSIP_DEBUGFS_DEBUG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) "%s: copy_from_user failed!\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) * Map the keyword string from userspace into a valid debug mask.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) * The mapping process involves mapping the human-inputted string
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) * into a valid mask, and then rebuilding the string from the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) * verified valid mask.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) * A service operation is required to set a new client-side
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) * debug mask.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) if (!strcmp(file->f_path.dentry->d_name.name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) ORANGEFS_KMOD_DEBUG_FILE)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) debug_string_to_mask(buf, &orangefs_gossip_debug_mask, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) debug_mask_to_string(&orangefs_gossip_debug_mask, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) debug_string = kernel_debug_string;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) gossip_debug(GOSSIP_DEBUGFS_DEBUG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) "New kernel debug string is %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) kernel_debug_string);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) /* Can't reset client debug mask if client is not running. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) if (is_daemon_in_service()) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) pr_info("%s: Client not running :%d:\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) is_daemon_in_service());
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) debug_string_to_mask(buf, &c_mask, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) debug_mask_to_string(&c_mask, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) debug_string = client_debug_string;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) new_op = op_alloc(ORANGEFS_VFS_OP_PARAM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) if (!new_op) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) pr_info("%s: op_alloc failed!\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) new_op->upcall.req.param.op =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) ORANGEFS_PARAM_REQUEST_OP_TWO_MASK_VALUES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) new_op->upcall.req.param.type = ORANGEFS_PARAM_REQUEST_SET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) memset(new_op->upcall.req.param.s_value,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) ORANGEFS_MAX_DEBUG_STRING_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) sprintf(new_op->upcall.req.param.s_value,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) "%llx %llx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) c_mask.mask1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) c_mask.mask2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) /* service_operation returns 0 on success... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) rc = service_operation(new_op,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) "orangefs_param",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) ORANGEFS_OP_INTERRUPTIBLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) gossip_debug(GOSSIP_DEBUGFS_DEBUG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) "%s: service_operation failed! rc:%d:\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) op_release(new_op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) mutex_lock(&orangefs_debug_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) s = file_inode(file)->i_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) memset(s, 0, ORANGEFS_MAX_DEBUG_STRING_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) sprintf(s, "%s\n", debug_string);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) mutex_unlock(&orangefs_debug_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) *ppos += count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) if (silly)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) rc = silly;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) rc = count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) gossip_debug(GOSSIP_DEBUGFS_DEBUG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) "orangefs_debug_write: rc: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) * After obtaining a string representation of the client's debug
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) * keywords and their associated masks, this function is called to build an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) * array of these values.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) static int orangefs_prepare_cdm_array(char *debug_array_string)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) int rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) char *cds_head = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) char *cds_delimiter = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) int keyword_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) * figure out how many elements the cdm_array needs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) for (i = 0; i < strlen(debug_array_string); i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) if (debug_array_string[i] == '\n')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) cdm_element_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) if (!cdm_element_count) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) pr_info("No elements in client debug array string!\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) cdm_array = kcalloc(cdm_element_count, sizeof(*cdm_array), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) if (!cdm_array) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) cds_head = debug_array_string;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) for (i = 0; i < cdm_element_count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) cds_delimiter = strchr(cds_head, '\n');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) *cds_delimiter = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) keyword_len = strcspn(cds_head, " ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) cdm_array[i].keyword = kzalloc(keyword_len + 1, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) if (!cdm_array[i].keyword) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) sscanf(cds_head,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) "%s %llx %llx",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) cdm_array[i].keyword,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) (unsigned long long *)&(cdm_array[i].mask1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) (unsigned long long *)&(cdm_array[i].mask2));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) if (!strcmp(cdm_array[i].keyword, ORANGEFS_VERBOSE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) client_verbose_index = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) if (!strcmp(cdm_array[i].keyword, ORANGEFS_ALL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) client_all_index = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) cds_head = cds_delimiter + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) rc = cdm_element_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) gossip_debug(GOSSIP_UTILS_DEBUG, "%s: rc:%d:\n", __func__, rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) * /sys/kernel/debug/orangefs/debug-help can be catted to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) * see all the available kernel and client debug keywords.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) * When orangefs.ko initializes, we have no idea what keywords the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) * client supports, nor their associated masks.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) * We pass through this function once at module-load and stamp a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) * boilerplate "we don't know" message for the client in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) * debug-help file. We pass through here again when the client
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) * starts and then we can fill out the debug-help file fully.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) * The client might be restarted any number of times between
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) * module reloads, we only build the debug-help file the first time.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) int orangefs_prepare_debugfs_help_string(int at_boot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) char *client_title = "Client Debug Keywords:\n";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) char *kernel_title = "Kernel Debug Keywords:\n";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) size_t string_size = DEBUG_HELP_STRING_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) size_t result_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) size_t i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) char *new;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) int rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) if (at_boot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) client_title = HELP_STRING_UNINITIALIZED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) /* build a new debug_help_string. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) new = kzalloc(DEBUG_HELP_STRING_SIZE, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) if (!new) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) * strlcat(dst, src, size) will append at most
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) * "size - strlen(dst) - 1" bytes of src onto dst,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) * null terminating the result, and return the total
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) * length of the string it tried to create.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) * We'll just plow through here building our new debug
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) * help string and let strlcat take care of assuring that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) * dst doesn't overflow.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) strlcat(new, client_title, string_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) if (!at_boot) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) * fill the client keyword/mask array and remember
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) * how many elements there were.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) cdm_element_count =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) orangefs_prepare_cdm_array(client_debug_array_string);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) if (cdm_element_count <= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) kfree(new);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) for (i = 0; i < cdm_element_count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) strlcat(new, "\t", string_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) strlcat(new, cdm_array[i].keyword, string_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) strlcat(new, "\n", string_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) strlcat(new, "\n", string_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) strlcat(new, kernel_title, string_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) for (i = 0; i < num_kmod_keyword_mask_map; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) strlcat(new, "\t", string_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) strlcat(new, s_kmod_keyword_mask_map[i].keyword, string_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) result_size = strlcat(new, "\n", string_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) /* See if we tried to put too many bytes into "new"... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) if (result_size >= string_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) kfree(new);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) if (at_boot) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) debug_help_string = new;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) mutex_lock(&orangefs_help_file_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) memset(debug_help_string, 0, DEBUG_HELP_STRING_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) strlcat(debug_help_string, new, string_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) mutex_unlock(&orangefs_help_file_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) out: return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) * kernel = type 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) * client = type 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) static void debug_mask_to_string(void *mask, int type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) int len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) char *debug_string;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) int element_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) if (type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) debug_string = client_debug_string;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) element_count = cdm_element_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) debug_string = kernel_debug_string;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) element_count = num_kmod_keyword_mask_map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) memset(debug_string, 0, ORANGEFS_MAX_DEBUG_STRING_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) * Some keywords, like "all" or "verbose", are amalgams of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) * numerous other keywords. Make a special check for those
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) * before grinding through the whole mask only to find out
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) * later...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) if (check_amalgam_keyword(mask, type))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) /* Build the debug string. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) for (i = 0; i < element_count; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) if (type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) do_c_string(mask, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) do_k_string(mask, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) len = strlen(debug_string);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) if ((len) && (type))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) client_debug_string[len - 1] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) else if (len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) kernel_debug_string[len - 1] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) else if (type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) strcpy(client_debug_string, "none");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) strcpy(kernel_debug_string, "none");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) gossip_debug(GOSSIP_UTILS_DEBUG, "%s: string:%s:\n", __func__, debug_string);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) static void do_k_string(void *k_mask, int index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) __u64 *mask = (__u64 *) k_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) if (keyword_is_amalgam((char *) s_kmod_keyword_mask_map[index].keyword))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) if (*mask & s_kmod_keyword_mask_map[index].mask_val) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) if ((strlen(kernel_debug_string) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) strlen(s_kmod_keyword_mask_map[index].keyword))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) < ORANGEFS_MAX_DEBUG_STRING_LEN - 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) strcat(kernel_debug_string,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) s_kmod_keyword_mask_map[index].keyword);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) strcat(kernel_debug_string, ",");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) gossip_err("%s: overflow!\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) strcpy(kernel_debug_string, ORANGEFS_ALL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) static void do_c_string(void *c_mask, int index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) struct client_debug_mask *mask = (struct client_debug_mask *) c_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) if (keyword_is_amalgam(cdm_array[index].keyword))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) if ((mask->mask1 & cdm_array[index].mask1) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) (mask->mask2 & cdm_array[index].mask2)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) if ((strlen(client_debug_string) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) strlen(cdm_array[index].keyword) + 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) < ORANGEFS_MAX_DEBUG_STRING_LEN - 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) strcat(client_debug_string,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) cdm_array[index].keyword);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) strcat(client_debug_string, ",");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) gossip_err("%s: overflow!\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) strcpy(client_debug_string, ORANGEFS_ALL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) static int keyword_is_amalgam(char *keyword)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) if ((!strcmp(keyword, ORANGEFS_ALL)) || (!strcmp(keyword, ORANGEFS_VERBOSE)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) rc = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) * kernel = type 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) * client = type 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) * return 1 if we found an amalgam.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) static int check_amalgam_keyword(void *mask, int type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) __u64 *k_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) struct client_debug_mask *c_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) int k_all_index = num_kmod_keyword_mask_map - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) if (type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) c_mask = (struct client_debug_mask *) mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) if ((c_mask->mask1 == cdm_array[client_all_index].mask1) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) (c_mask->mask2 == cdm_array[client_all_index].mask2)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) strcpy(client_debug_string, ORANGEFS_ALL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) rc = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) if ((c_mask->mask1 == cdm_array[client_verbose_index].mask1) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) (c_mask->mask2 == cdm_array[client_verbose_index].mask2)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) strcpy(client_debug_string, ORANGEFS_VERBOSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) rc = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) k_mask = (__u64 *) mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) if (*k_mask >= s_kmod_keyword_mask_map[k_all_index].mask_val) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) strcpy(kernel_debug_string, ORANGEFS_ALL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) rc = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) * kernel = type 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) * client = type 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) static void debug_string_to_mask(char *debug_string, void *mask, int type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) char *unchecked_keyword;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) char *strsep_fodder = kstrdup(debug_string, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) char *original_pointer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) int element_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) struct client_debug_mask *c_mask = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) __u64 *k_mask = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) if (type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) c_mask = (struct client_debug_mask *)mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) element_count = cdm_element_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) k_mask = (__u64 *)mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) *k_mask = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) element_count = num_kmod_keyword_mask_map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) original_pointer = strsep_fodder;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) while ((unchecked_keyword = strsep(&strsep_fodder, ",")))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) if (strlen(unchecked_keyword)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) for (i = 0; i < element_count; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) if (type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) do_c_mask(i,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) unchecked_keyword,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) &c_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) do_k_mask(i,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) unchecked_keyword,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) &k_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) kfree(original_pointer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) static void do_c_mask(int i, char *unchecked_keyword,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) struct client_debug_mask **sane_mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) if (!strcmp(cdm_array[i].keyword, unchecked_keyword)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) (**sane_mask).mask1 = (**sane_mask).mask1 | cdm_array[i].mask1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) (**sane_mask).mask2 = (**sane_mask).mask2 | cdm_array[i].mask2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) static void do_k_mask(int i, char *unchecked_keyword, __u64 **sane_mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) if (!strcmp(s_kmod_keyword_mask_map[i].keyword, unchecked_keyword))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) **sane_mask = (**sane_mask) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) s_kmod_keyword_mask_map[i].mask_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) int orangefs_debugfs_new_client_mask(void __user *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) struct dev_mask2_info_s mask2_info = {0};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) ret = copy_from_user(&mask2_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) (void __user *)arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) sizeof(struct dev_mask2_info_s));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) if (ret != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) client_debug_mask.mask1 = mask2_info.mask1_value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) client_debug_mask.mask2 = mask2_info.mask2_value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) pr_info("%s: client debug mask has been been received "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) ":%llx: :%llx:\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) (unsigned long long)client_debug_mask.mask1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) (unsigned long long)client_debug_mask.mask2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) int orangefs_debugfs_new_client_string(void __user *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) ret = copy_from_user(&client_debug_array_string,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) (void __user *)arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) ORANGEFS_MAX_DEBUG_STRING_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) if (ret != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) pr_info("%s: CLIENT_STRING: copy_from_user failed\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) * The real client-core makes an effort to ensure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) * that actual strings that aren't too long to fit in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) * this buffer is what we get here. We're going to use
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) * string functions on the stuff we got, so we'll make
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) * this extra effort to try and keep from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) * flowing out of this buffer when we use the string
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) * functions, even if somehow the stuff we end up
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) * with here is garbage.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) client_debug_array_string[ORANGEFS_MAX_DEBUG_STRING_LEN - 1] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) pr_info("%s: client debug array string has been received.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) if (!help_string_initialized) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) /* Build a proper debug help string. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) ret = orangefs_prepare_debugfs_help_string(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) gossip_err("%s: no debug help string \n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) debug_mask_to_string(&client_debug_mask, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) debugfs_remove(client_debug_dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) orangefs_client_debug_init();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) help_string_initialized++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) int orangefs_debugfs_new_debug(void __user *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) struct dev_mask_info_s mask_info = {0};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) ret = copy_from_user(&mask_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) (void __user *)arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) sizeof(mask_info));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) if (ret != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) if (mask_info.mask_type == KERNEL_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) if ((mask_info.mask_value == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) && (kernel_mask_set_mod_init)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) * the kernel debug mask was set when the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) * kernel module was loaded; don't override
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) * it if the client-core was started without
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) * a value for ORANGEFS_KMODMASK.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) debug_mask_to_string(&mask_info.mask_value,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) mask_info.mask_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) orangefs_gossip_debug_mask = mask_info.mask_value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) pr_info("%s: kernel debug mask has been modified to "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) ":%s: :%llx:\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) kernel_debug_string,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) (unsigned long long)orangefs_gossip_debug_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) } else if (mask_info.mask_type == CLIENT_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) debug_mask_to_string(&mask_info.mask_value,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) mask_info.mask_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) pr_info("%s: client debug mask has been modified to"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) ":%s: :%llx:\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) client_debug_string,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) llu(mask_info.mask_value));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) gossip_err("Invalid mask type....\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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