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From f6d3898264a5083ebe7bcc663eab353bfa6ba1f4 Mon Sep 17 00:00:00 2001
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From: Collin Walling <walling@linux.ibm.com>
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Date: Tue, 8 May 2018 09:01:16 +0000
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Subject: pc-bios/s390-ccw: fix non-sequential boot entries (enum)
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zIPL boot menu entries can be non-sequential. Let's account
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for this issue for the s390 enumerated boot menu. Since we
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can no longer print a range of available entries to the
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user, we have to present a list of each available entry.
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An example of this menu:
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s390-ccw Enumerated Boot Menu.
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[0] default
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[1]
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[2]
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[7]
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[8]
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[9]
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[11]
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[12]
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Please choose:
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Signed-off-by: Collin Walling <walling@linux.ibm.com>
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Reported-by: Vasily Gorbik <gor@linux.ibm.com>
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Reviewed-by: Thomas Huth <thuth@redhat.com>
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Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
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Signed-off-by: Thomas Huth <thuth@redhat.com>
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(cherry picked from commit 622b39178057289a1c8c1b5148f513e658e90ea1)
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---
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pc-bios/s390-ccw/bootmap.c | 12 +++++++-----
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pc-bios/s390-ccw/menu.c | 29 ++++++++++++++++++++---------
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pc-bios/s390-ccw/s390-ccw.h | 2 +-
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3 files changed, 28 insertions(+), 15 deletions(-)
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diff --git a/pc-bios/s390-ccw/bootmap.c b/pc-bios/s390-ccw/bootmap.c
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index b767fa2..e41e715 100644
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--- a/pc-bios/s390-ccw/bootmap.c
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+++ b/pc-bios/s390-ccw/bootmap.c
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@@ -565,6 +565,8 @@ static void ipl_scsi(void)
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int program_table_entries = 0;
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BootMapTable *prog_table = (void *)sec;
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unsigned int loadparm = get_loadparm_index();
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+ bool valid_entries[MAX_BOOT_ENTRIES] = {false};
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+ size_t i;
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/* Grab the MBR */
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memset(sec, FREE_SPACE_FILLER, sizeof(sec));
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@@ -585,18 +587,18 @@ static void ipl_scsi(void)
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read_block(mbr->pt.blockno, sec, "Error reading Program Table");
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IPL_assert(magic_match(sec, ZIPL_MAGIC), "No zIPL magic in PT");
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- while (program_table_entries < MAX_BOOT_ENTRIES) {
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- if (!prog_table->entry[program_table_entries].scsi.blockno) {
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- break;
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+ for (i = 0; i < MAX_BOOT_ENTRIES; i++) {
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+ if (prog_table->entry[i].scsi.blockno) {
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+ valid_entries[i] = true;
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+ program_table_entries++;
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}
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- program_table_entries++;
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}
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debug_print_int("program table entries", program_table_entries);
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IPL_assert(program_table_entries != 0, "Empty Program Table");
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if (menu_is_enabled_enum()) {
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- loadparm = menu_get_enum_boot_index(program_table_entries);
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+ loadparm = menu_get_enum_boot_index(valid_entries);
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}
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debug_print_int("loadparm", loadparm);
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diff --git a/pc-bios/s390-ccw/menu.c b/pc-bios/s390-ccw/menu.c
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index aaf5d61..82a4ae6 100644
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--- a/pc-bios/s390-ccw/menu.c
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+++ b/pc-bios/s390-ccw/menu.c
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@@ -228,19 +228,30 @@ int menu_get_zipl_boot_index(const char *menu_data)
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return get_boot_index(valid_entries);
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}
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-
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-int menu_get_enum_boot_index(int entries)
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+int menu_get_enum_boot_index(bool *valid_entries)
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{
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- char tmp[4];
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+ char tmp[3];
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+ int i;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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- sclp_print("s390x Enumerated Boot Menu.\n\n");
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+ sclp_print("s390-ccw Enumerated Boot Menu.\n\n");
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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- sclp_print(uitoa(entries, tmp, sizeof(tmp)));
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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- sclp_print(" entries detected. Select from boot index 0 to ");
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
- sclp_print(uitoa(entries - 1, tmp, sizeof(tmp)));
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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- sclp_print(".\n\n");
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+ for (i = 0; i < MAX_BOOT_ENTRIES; i++) {
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+ if (valid_entries[i]) {
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+ if (i < 10) {
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+ sclp_print(" ");
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+ }
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+ sclp_print("[");
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+ sclp_print(uitoa(i, tmp, sizeof(tmp)));
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+ sclp_print("]");
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+ if (i == 0) {
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+ sclp_print(" default\n");
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+ }
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+ sclp_print("\n");
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+ }
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+ }
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
- return get_boot_index(entries);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+ sclp_print("\n");
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+ return get_boot_index(valid_entries);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
}
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
void menu_set_parms(uint8_t boot_menu_flag, uint32_t boot_menu_timeout)
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
diff --git a/pc-bios/s390-ccw/s390-ccw.h b/pc-bios/s390-ccw/s390-ccw.h
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
index 2c9e601..a1bdb4c 100644
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
--- a/pc-bios/s390-ccw/s390-ccw.h
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+++ b/pc-bios/s390-ccw/s390-ccw.h
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
@@ -91,7 +91,7 @@ void zipl_load(void);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
void menu_set_parms(uint8_t boot_menu_flag, uint32_t boot_menu_timeout);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
int menu_get_zipl_boot_index(const char *menu_data);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
bool menu_is_enabled_zipl(void);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
-int menu_get_enum_boot_index(int entries);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
+int menu_get_enum_boot_index(bool *valid_entries);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
bool menu_is_enabled_enum(void);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
#define MAX_BOOT_ENTRIES 31
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
--
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
1.8.3.1
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
|