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-rw-r--r--sys/kern/kern_linker.c15
-rw-r--r--sys/kern/kern_poll.c1
-rw-r--r--sys/kern/kern_sysctl.c105
-rw-r--r--sys/kern/kern_uuid.c1
-rw-r--r--sys/kern/kern_vimage.c119
-rw-r--r--sys/kern/link_elf.c55
-rw-r--r--sys/kern/link_elf_obj.c43
-rw-r--r--sys/kern/uipc_domain.c6
8 files changed, 119 insertions, 226 deletions
diff --git a/sys/kern/kern_linker.c b/sys/kern/kern_linker.c
index 9775059fd0ab..1768e69a7c40 100644
--- a/sys/kern/kern_linker.c
+++ b/sys/kern/kern_linker.c
@@ -1334,23 +1334,8 @@ kldsym(struct thread *td, struct kldsym_args *uap)
break;
}
}
-#ifndef VIMAGE_GLOBALS
- /*
- * If the symbol is not found in global namespace,
- * try to look it up in the current vimage namespace.
- */
- if (lf == NULL) {
- CURVNET_SET(TD_TO_VNET(td));
- error = vi_symlookup(&lookup, symstr);
- CURVNET_RESTORE();
- if (error == 0)
- error = copyout(&lookup, uap->data,
- sizeof(lookup));
- }
-#else
if (lf == NULL)
error = ENOENT;
-#endif
}
KLD_UNLOCK();
out:
diff --git a/sys/kern/kern_poll.c b/sys/kern/kern_poll.c
index d9cf49fa28ce..53962402f453 100644
--- a/sys/kern/kern_poll.c
+++ b/sys/kern/kern_poll.c
@@ -545,7 +545,6 @@ ether_poll_deregister(struct ifnet *ifp)
static int
poll_switch(SYSCTL_HANDLER_ARGS)
{
- INIT_VNET_NET(curvnet);
struct ifnet *ifp;
int error;
int val = polling;
diff --git a/sys/kern/kern_sysctl.c b/sys/kern/kern_sysctl.c
index 9e615449a7b3..94e45f13caf4 100644
--- a/sys/kern/kern_sysctl.c
+++ b/sys/kern/kern_sysctl.c
@@ -59,6 +59,8 @@ __FBSDID("$FreeBSD$");
#include <sys/ktrace.h>
#endif
+#include <net/vnet.h>
+
#include <security/mac/mac_framework.h>
#include <vm/vm.h>
@@ -936,33 +938,9 @@ sysctl_handle_int(SYSCTL_HANDLER_ARGS)
return (error);
}
-#ifdef VIMAGE
-int
-sysctl_handle_v_int(SYSCTL_HANDLER_ARGS)
-{
- int tmpout, error = 0;
-
- SYSCTL_RESOLVE_V_ARG1();
-
- /*
- * Attempt to get a coherent snapshot by making a copy of the data.
- */
- tmpout = *(int *)arg1;
- error = SYSCTL_OUT(req, &tmpout, sizeof(int));
-
- if (error || !req->newptr)
- return (error);
-
- if (!arg1)
- error = EPERM;
- else
- error = SYSCTL_IN(req, arg1, sizeof(int));
- return (error);
-}
-#endif
-
/*
* Based on on sysctl_handle_int() convert milliseconds into ticks.
+ * Note: this is used by TCP.
*/
int
@@ -970,8 +948,11 @@ sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS)
{
int error, s, tt;
- SYSCTL_RESOLVE_V_ARG1();
-
+#ifdef VIMAGE
+ if (arg1 != NULL)
+ arg1 = (void *)(TD_TO_VNET(req->td)->vnet_data_base +
+ (uintptr_t)arg1);
+#endif
tt = *(int *)arg1;
s = (int)((int64_t)tt * 1000 / hz);
@@ -1097,47 +1078,6 @@ retry:
return (error);
}
-#ifdef VIMAGE
-int
-sysctl_handle_v_string(SYSCTL_HANDLER_ARGS)
-{
- int error=0;
- char *tmparg;
- size_t outlen;
-
- SYSCTL_RESOLVE_V_ARG1();
-
- /*
- * Attempt to get a coherent snapshot by copying to a
- * temporary kernel buffer.
- */
-retry:
- outlen = strlen((char *)arg1)+1;
- tmparg = malloc(outlen, M_SYSCTLTMP, M_WAITOK);
-
- if (strlcpy(tmparg, (char *)arg1, outlen) >= outlen) {
- free(tmparg, M_SYSCTLTMP);
- goto retry;
- }
-
- error = SYSCTL_OUT(req, tmparg, outlen);
- free(tmparg, M_SYSCTLTMP);
-
- if (error || !req->newptr)
- return (error);
-
- if ((req->newlen - req->newidx) >= arg2) {
- error = EINVAL;
- } else {
- arg2 = (req->newlen - req->newidx);
- error = SYSCTL_IN(req, arg1, arg2);
- ((char *)arg1)[arg2] = '\0';
- }
-
- return (error);
-}
-#endif
-
/*
* Handle any kind of opaque data.
* arg1 points to it, arg2 is the size.
@@ -1175,35 +1115,6 @@ retry:
return (error);
}
-#ifdef VIMAGE
-int
-sysctl_handle_v_opaque(SYSCTL_HANDLER_ARGS)
-{
- int error, tries;
- u_int generation;
- struct sysctl_req req2;
-
- SYSCTL_RESOLVE_V_ARG1();
-
- tries = 0;
- req2 = *req;
-retry:
- generation = curthread->td_generation;
- error = SYSCTL_OUT(req, arg1, arg2);
- if (error)
- return (error);
- tries++;
- if (generation != curthread->td_generation && tries < 3) {
- *req = req2;
- goto retry;
- }
-
- error = SYSCTL_IN(req, arg1, arg2);
-
- return (error);
-}
-#endif
-
/*
* Transfer functions to/from kernel space.
* XXX: rather untested at this point
diff --git a/sys/kern/kern_uuid.c b/sys/kern/kern_uuid.c
index a0c26b92bd01..cd88538f7e38 100644
--- a/sys/kern/kern_uuid.c
+++ b/sys/kern/kern_uuid.c
@@ -89,7 +89,6 @@ MTX_SYSINIT(uuid_lock, &uuid_mutex, "UUID generator mutex lock", MTX_DEF);
static void
uuid_node(uint16_t *node)
{
- INIT_VNET_NET(curvnet);
struct ifnet *ifp;
struct ifaddr *ifa;
struct sockaddr_dl *sdl;
diff --git a/sys/kern/kern_vimage.c b/sys/kern/kern_vimage.c
index 9ee3e1dc4640..daa9b9f4f96c 100644
--- a/sys/kern/kern_vimage.c
+++ b/sys/kern/kern_vimage.c
@@ -53,8 +53,6 @@ __FBSDID("$FreeBSD$");
#include <net/route.h>
#include <net/vnet.h>
-#ifndef VIMAGE_GLOBALS
-
MALLOC_DEFINE(M_VIMAGE, "vimage", "vimage resource container");
MALLOC_DEFINE(M_VNET, "vnet", "network stack control block");
MALLOC_DEFINE(M_VPROCG, "vprocg", "process group control block");
@@ -65,13 +63,11 @@ static void vnet_mod_complete_registration(struct vnet_modlink *);
static int vnet_mod_constructor(struct vnet_modlink *);
static int vnet_mod_destructor(struct vnet_modlink *);
-#ifdef VIMAGE
static struct vimage *vi_alloc(struct vimage *, char *);
static int vi_destroy(struct vimage *);
static struct vimage *vimage_get_next(struct vimage *, struct vimage *, int);
static void vimage_relative_name(struct vimage *, struct vimage *,
char *, int);
-#endif
#define VNET_LIST_WLOCK() \
mtx_lock(&vnet_list_refc_mtx); \
@@ -81,17 +77,11 @@ static void vimage_relative_name(struct vimage *, struct vimage *,
#define VNET_LIST_WUNLOCK() \
mtx_unlock(&vnet_list_refc_mtx);
-#ifdef VIMAGE
struct vimage_list_head vimage_head;
struct vnet_list_head vnet_head;
struct vprocg_list_head vprocg_head;
-#else
-#ifndef VIMAGE_GLOBALS
struct vprocg vprocg_0;
-#endif
-#endif
-#ifdef VIMAGE
struct cv vnet_list_condvar;
struct mtx vnet_list_refc_mtx;
int vnet_list_refc = 0;
@@ -100,9 +90,7 @@ static u_int last_vi_id = 0;
static u_int last_vprocg_id = 0;
struct vnet *vnet0;
-#endif
-#ifdef VIMAGE
/*
* Move an ifnet to or from another vnet, specified by the jail id. If a
@@ -396,8 +384,6 @@ vimage_get_next(struct vimage *top, struct vimage *where, int recurse)
return (NULL);
}
-#endif /* VIMAGE */ /* User interface block */
-
/*
* Kernel interfaces and handlers.
@@ -540,25 +526,11 @@ vnet_mod_constructor(struct vnet_modlink *vml)
if (vml->vml_iarg)
printf("/%s", vml->vml_iname);
printf(": ");
-#ifdef VIMAGE
- if (vmi->vmi_size)
- printf("malloc(%zu); ", vmi->vmi_size);
-#endif
if (vmi->vmi_iattach != NULL)
printf("iattach()");
printf("\n");
#endif
-#ifdef VIMAGE
- if (vmi->vmi_size) {
- void *mem = malloc(vmi->vmi_size, M_VNET,
- M_NOWAIT | M_ZERO);
- if (mem == NULL) /* XXX should return error, not panic. */
- panic("malloc for %s\n", vmi->vmi_name);
- curvnet->mod_data[vmi->vmi_id] = mem;
- }
-#endif
-
if (vmi->vmi_iattach != NULL)
vmi->vmi_iattach(vml->vml_iarg);
@@ -577,63 +549,15 @@ vnet_mod_destructor(struct vnet_modlink *vml)
printf(": ");
if (vmi->vmi_idetach != NULL)
printf("idetach(); ");
-#ifdef VIMAGE
- if (vmi->vmi_size)
- printf("free()");
-#endif
printf("\n");
#endif
if (vmi->vmi_idetach)
vmi->vmi_idetach(vml->vml_iarg);
-#ifdef VIMAGE
- if (vmi->vmi_size) {
- if (curvnet->mod_data[vmi->vmi_id] == NULL)
- panic("vi_destroy: %s\n", vmi->vmi_name);
- free(curvnet->mod_data[vmi->vmi_id], M_VNET);
- curvnet->mod_data[vmi->vmi_id] = NULL;
- }
-#endif
-
return (0);
}
-/*
- * vi_symlookup() attempts to resolve name to address queries for
- * variables which have been moved from global namespace to virtualization
- * container structures, but are still directly accessed from legacy
- * userspace processes via kldsym(2) and kmem(4) interfaces.
- */
-int
-vi_symlookup(struct kld_sym_lookup *lookup, char *symstr)
-{
- struct vnet_modlink *vml;
- struct vnet_symmap *mapentry;
-
- TAILQ_FOREACH(vml, &vnet_modlink_head, vml_mod_le) {
- if (vml->vml_modinfo->vmi_symmap == NULL)
- continue;
- for (mapentry = vml->vml_modinfo->vmi_symmap;
- mapentry->name != NULL; mapentry++) {
- if (strcmp(symstr, mapentry->name) == 0) {
-#ifdef VIMAGE
- lookup->symvalue =
- (u_long) curvnet->mod_data[
- vml->vml_modinfo->vmi_id];
- lookup->symvalue += mapentry->offset;
-#else
- lookup->symvalue = (u_long) mapentry->offset;
-#endif
- lookup->symsize = mapentry->size;
- return (0);
- }
- }
- }
- return (ENOENT);
-}
-
-#ifdef VIMAGE
struct vnet *
vnet_alloc(void)
{
@@ -642,6 +566,7 @@ vnet_alloc(void)
vnet = malloc(sizeof(struct vnet), M_VNET, M_WAITOK | M_ZERO);
vnet->vnet_magic_n = VNET_MAGIC_N;
+ vnet_data_init(vnet);
/* Initialize / attach vnet module instances. */
CURVNET_SET_QUIET(vnet);
@@ -669,7 +594,6 @@ vnet_destroy(struct vnet *vnet)
VNET_LIST_WUNLOCK();
CURVNET_SET_QUIET(vnet);
- INIT_VNET_NET(vnet);
/* Return all inherited interfaces to their parent vnets. */
TAILQ_FOREACH_SAFE(ifp, &V_ifnet, if_link, nifp) {
@@ -685,10 +609,22 @@ vnet_destroy(struct vnet *vnet)
CURVNET_RESTORE();
/* Hopefully, we are OK to free the vnet container itself. */
+ vnet_data_destroy(vnet);
vnet->vnet_magic_n = 0xdeadbeef;
free(vnet, M_VNET);
}
+void
+vnet_foreach(void (*vnet_foreach_fn)(struct vnet *, void *), void *arg)
+{
+ struct vnet *vnet;
+
+ VNET_LIST_RLOCK();
+ LIST_FOREACH(vnet, &vnet_head, vnet_le)
+ vnet_foreach_fn(vnet, arg);
+ VNET_LIST_RUNLOCK();
+}
+
static struct vimage *
vi_alloc(struct vimage *parent, char *name)
{
@@ -757,7 +693,6 @@ vi_destroy(struct vimage *vip)
return (0);
}
-#endif /* VIMAGE */
static void
vi_init(void *unused)
@@ -766,7 +701,6 @@ vi_init(void *unused)
TAILQ_INIT(&vnet_modlink_head);
TAILQ_INIT(&vnet_modpending_head);
-#ifdef VIMAGE
LIST_INIT(&vimage_head);
LIST_INIT(&vprocg_head);
LIST_INIT(&vnet_head);
@@ -783,7 +717,6 @@ vi_init(void *unused)
* curvnet recursions.
*/
curvnet = prison0.pr_vnet = vnet0 = LIST_FIRST(&vnet_head);
-#endif
}
static void
@@ -791,9 +724,7 @@ vi_init_done(void *unused)
{
struct vnet_modlink *vml_iter;
-#ifdef VIMAGE
curvnet = NULL;
-#endif
if (TAILQ_EMPTY(&vnet_modpending_head))
return;
@@ -809,45 +740,21 @@ vi_init_done(void *unused)
SYSINIT(vimage, SI_SUB_VIMAGE, SI_ORDER_FIRST, vi_init, NULL);
SYSINIT(vimage_done, SI_SUB_VIMAGE_DONE, SI_ORDER_FIRST, vi_init_done, NULL);
-#endif /* !VIMAGE_GLOBALS */
-#ifdef VIMAGE
#ifdef DDB
-static void
-db_vnet_ptr(void *arg)
-{
-
- if (arg)
- db_printf(" %p", arg);
- else
-#if SIZE_MAX == UINT32_MAX /* 32-bit arch */
- db_printf(" 0");
-#else /* 64-bit arch, most probaly... */
- db_printf(" 0");
-#endif
-}
-
DB_SHOW_COMMAND(vnets, db_show_vnets)
{
VNET_ITERATOR_DECL(vnet_iter);
#if SIZE_MAX == UINT32_MAX /* 32-bit arch */
db_printf(" vnet ifs socks");
- db_printf(" net inet inet6 ipsec netgraph\n");
#else /* 64-bit arch, most probaly... */
db_printf(" vnet ifs socks");
- db_printf(" net inet inet6 ipsec netgraph\n");
#endif
VNET_FOREACH(vnet_iter) {
db_printf("%p %3d %5d",
vnet_iter, vnet_iter->ifcnt, vnet_iter->sockcnt);
- db_vnet_ptr(vnet_iter->mod_data[VNET_MOD_NET]);
- db_vnet_ptr(vnet_iter->mod_data[VNET_MOD_INET]);
- db_vnet_ptr(vnet_iter->mod_data[VNET_MOD_INET6]);
- db_vnet_ptr(vnet_iter->mod_data[VNET_MOD_IPSEC]);
- db_vnet_ptr(vnet_iter->mod_data[VNET_MOD_NETGRAPH]);
db_printf("\n");
}
}
#endif
-#endif /* VIMAGE */
diff --git a/sys/kern/link_elf.c b/sys/kern/link_elf.c
index cd0f3e909d5b..b389ace5bd49 100644
--- a/sys/kern/link_elf.c
+++ b/sys/kern/link_elf.c
@@ -49,6 +49,8 @@ __FBSDID("$FreeBSD$");
#include <machine/elf.h>
+#include <net/vnet.h>
+
#include <security/mac/mac_framework.h>
#include <vm/vm.h>
@@ -111,6 +113,11 @@ typedef struct elf_file {
Elf_Addr pcpu_start; /* Pre-relocation pcpu set start. */
Elf_Addr pcpu_stop; /* Pre-relocation pcpu set stop. */
Elf_Addr pcpu_base; /* Relocated pcpu set address. */
+#ifdef VIMAGE
+ Elf_Addr vnet_start; /* Pre-relocation vnet set start. */
+ Elf_Addr vnet_stop; /* Pre-relocation vnet set stop. */
+ Elf_Addr vnet_base; /* Relocated vnet set address. */
+#endif
#ifdef GDB
struct link_map gdb; /* hooks for gdb */
#endif
@@ -506,6 +513,36 @@ parse_dpcpu(elf_file_t ef)
return (0);
}
+#ifdef VIMAGE
+static int
+parse_vnet(elf_file_t ef)
+{
+ int count;
+ int error;
+
+ ef->vnet_start = 0;
+ ef->vnet_stop = 0;
+ error = link_elf_lookup_set(&ef->lf, "vnet", (void ***)&ef->vnet_start,
+ (void ***)&ef->vnet_stop, &count);
+ /* Error just means there is no vnet data set to relocate. */
+ if (error)
+ return (0);
+ count *= sizeof(void *);
+ /*
+ * Allocate space in the primary vnet area. Copy in our initialization
+ * from the data section and then initialize all per-vnet storage from
+ * that.
+ */
+ ef->vnet_base = (Elf_Addr)(uintptr_t)vnet_data_alloc(count);
+ if (ef->vnet_base == (Elf_Addr)NULL)
+ return (ENOSPC);
+ memcpy((void *)ef->vnet_base, (void *)ef->vnet_start, count);
+ vnet_data_copy((void *)ef->vnet_base, count);
+
+ return (0);
+}
+#endif
+
static int
link_elf_link_preload(linker_class_t cls,
const char* filename, linker_file_t *result)
@@ -553,6 +590,10 @@ link_elf_link_preload(linker_class_t cls,
error = parse_dynamic(ef);
if (error == 0)
error = parse_dpcpu(ef);
+#ifdef VIMAGE
+ if (error == 0)
+ error = parse_vnet(ef);
+#endif
if (error) {
linker_file_unload(lf, LINKER_UNLOAD_FORCE);
return error;
@@ -838,6 +879,11 @@ link_elf_load_file(linker_class_t cls, const char* filename,
error = parse_dpcpu(ef);
if (error)
goto out;
+#ifdef VIMAGE
+ error = parse_vnet(ef);
+ if (error)
+ goto out;
+#endif
link_elf_reloc_local(lf);
VOP_UNLOCK(nd.ni_vp, 0);
@@ -942,6 +988,10 @@ elf_relocaddr(linker_file_t lf, Elf_Addr x)
ef = (elf_file_t)lf;
if (x >= ef->pcpu_start && x < ef->pcpu_stop)
return ((x - ef->pcpu_start) + ef->pcpu_base);
+#ifdef VIMAGE
+ if (x >= ef->vnet_start && x < ef->vnet_stop)
+ return ((x - ef->vnet_start) + ef->vnet_base);
+#endif
return (x);
}
@@ -954,6 +1004,11 @@ link_elf_unload_file(linker_file_t file)
if (ef->pcpu_base) {
dpcpu_free((void *)ef->pcpu_base, ef->pcpu_stop - ef->pcpu_start);
}
+#ifdef VIMAGE
+ if (ef->vnet_base) {
+ vnet_data_free((void *)ef->vnet_base, ef->vnet_stop - ef->vnet_start);
+ }
+#endif
#ifdef GDB
if (ef->gdb.l_ld) {
GDB_STATE(RT_DELETE);
diff --git a/sys/kern/link_elf_obj.c b/sys/kern/link_elf_obj.c
index 9d4d70c83f2d..afcdd63a21bd 100644
--- a/sys/kern/link_elf_obj.c
+++ b/sys/kern/link_elf_obj.c
@@ -45,6 +45,8 @@ __FBSDID("$FreeBSD$");
#include <machine/elf.h>
+#include <net/vnet.h>
+
#include <security/mac/mac_framework.h>
#include <vm/vm.h>
@@ -346,6 +348,21 @@ link_elf_link_preload(linker_class_t cls, const char *filename,
ef->progtab[pb].size);
dpcpu_copy(dpcpu, shdr[i].sh_size);
ef->progtab[pb].addr = dpcpu;
+#ifdef VIMAGE
+ } else if (ef->progtab[pb].name != NULL &&
+ !strcmp(ef->progtab[pb].name, "set_vnet")) {
+ void *vnet_data;
+
+ vnet_data = vnet_data_alloc(shdr[i].sh_size);
+ if (vnet_data == NULL) {
+ error = ENOSPC;
+ goto out;
+ }
+ memcpy(vnet_data, ef->progtab[pb].addr,
+ ef->progtab[pb].size);
+ vnet_data_copy(vnet_data, shdr[i].sh_size);
+ ef->progtab[pb].addr = vnet_data;
+#endif
}
/* Update all symbol values with the offset. */
@@ -737,6 +754,12 @@ link_elf_load_file(linker_class_t cls, const char *filename,
!strcmp(ef->progtab[pb].name, "set_pcpu"))
ef->progtab[pb].addr =
dpcpu_alloc(shdr[i].sh_size);
+#ifdef VIMAGE
+ else if (ef->progtab[pb].name != NULL &&
+ !strcmp(ef->progtab[pb].name, "set_vnet"))
+ ef->progtab[pb].addr =
+ vnet_data_alloc(shdr[i].sh_size);
+#endif
else
ef->progtab[pb].addr =
(void *)(uintptr_t)mapbase;
@@ -758,10 +781,21 @@ link_elf_load_file(linker_class_t cls, const char *filename,
error = EINVAL;
goto out;
}
- /* Initialize the per-cpu area. */
- if (ef->progtab[pb].addr != (void *)mapbase)
+ /* Initialize the per-cpu or vnet area. */
+ if (ef->progtab[pb].addr != (void *)mapbase &&
+ !strcmp(ef->progtab[pb].name, "set_pcpu"))
dpcpu_copy(ef->progtab[pb].addr,
shdr[i].sh_size);
+#ifdef VIMAGE
+ else if (ef->progtab[pb].addr !=
+ (void *)mapbase &&
+ !strcmp(ef->progtab[pb].name, "set_vnet"))
+ vnet_data_copy(ef->progtab[pb].addr,
+ shdr[i].sh_size);
+#endif
+ else
+ panic("link_elf_load_file: unexpected "
+ "progbits type");
} else
bzero(ef->progtab[pb].addr, shdr[i].sh_size);
@@ -877,6 +911,11 @@ link_elf_unload_file(linker_file_t file)
if (!strcmp(ef->progtab[i].name, "set_pcpu"))
dpcpu_free(ef->progtab[i].addr,
ef->progtab[i].size);
+#ifdef VIMAGE
+ else if (!strcmp(ef->progtab[i].name, "set_vnet"))
+ vnet_data_free(ef->progtab[i].addr,
+ ef->progtab[i].size);
+#endif
}
}
if (ef->preloaded) {
diff --git a/sys/kern/uipc_domain.c b/sys/kern/uipc_domain.c
index 9ee6047dd2ea..88322d564484 100644
--- a/sys/kern/uipc_domain.c
+++ b/sys/kern/uipc_domain.c
@@ -106,14 +106,12 @@ struct pr_usrreqs nousrreqs = {
.pru_sopoll = pru_sopoll_notsupp,
};
-#ifndef VIMAGE_GLOBALS
+#ifdef VIMAGE
vnet_modinfo_t vnet_domain_modinfo = {
.vmi_id = VNET_MOD_DOMAIN,
.vmi_name = "domain",
.vmi_iattach = net_init_domain,
-#ifdef VIMAGE
.vmi_idetach = net_detach_domain,
-#endif
};
#endif
@@ -249,7 +247,7 @@ net_add_domain(void *data)
"domainfinalize()\n", dp->dom_name);
#endif
mtx_unlock(&dom_mtx);
-#ifndef VIMAGE_GLOBALS
+#ifdef VIMAGE
vnet_mod_register_multi(&vnet_domain_modinfo, dp, dp->dom_name);
#else
net_init_domain(dp);
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-26 15:11:13 +0000