mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
84 lines
2.0 KiB
84 lines
2.0 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
|
|
#include <linux/ceph/decode.h> |
|
|
|
static int |
|
ceph_decode_entity_addr_versioned(void **p, void *end, |
|
struct ceph_entity_addr *addr) |
|
{ |
|
int ret; |
|
u8 struct_v; |
|
u32 struct_len, addr_len; |
|
void *struct_end; |
|
|
|
ret = ceph_start_decoding(p, end, 1, "entity_addr_t", &struct_v, |
|
&struct_len); |
|
if (ret) |
|
goto bad; |
|
|
|
ret = -EINVAL; |
|
struct_end = *p + struct_len; |
|
|
|
ceph_decode_copy_safe(p, end, &addr->type, sizeof(addr->type), bad); |
|
|
|
ceph_decode_copy_safe(p, end, &addr->nonce, sizeof(addr->nonce), bad); |
|
|
|
ceph_decode_32_safe(p, end, addr_len, bad); |
|
if (addr_len > sizeof(addr->in_addr)) |
|
goto bad; |
|
|
|
memset(&addr->in_addr, 0, sizeof(addr->in_addr)); |
|
if (addr_len) { |
|
ceph_decode_copy_safe(p, end, &addr->in_addr, addr_len, bad); |
|
|
|
addr->in_addr.ss_family = |
|
le16_to_cpu((__force __le16)addr->in_addr.ss_family); |
|
} |
|
|
|
/* Advance past anything the client doesn't yet understand */ |
|
*p = struct_end; |
|
ret = 0; |
|
bad: |
|
return ret; |
|
} |
|
|
|
static int |
|
ceph_decode_entity_addr_legacy(void **p, void *end, |
|
struct ceph_entity_addr *addr) |
|
{ |
|
int ret = -EINVAL; |
|
|
|
/* Skip rest of type field */ |
|
ceph_decode_skip_n(p, end, 3, bad); |
|
|
|
/* |
|
* Clients that don't support ADDR2 always send TYPE_NONE, change it |
|
* to TYPE_LEGACY for forward compatibility. |
|
*/ |
|
addr->type = CEPH_ENTITY_ADDR_TYPE_LEGACY; |
|
ceph_decode_copy_safe(p, end, &addr->nonce, sizeof(addr->nonce), bad); |
|
memset(&addr->in_addr, 0, sizeof(addr->in_addr)); |
|
ceph_decode_copy_safe(p, end, &addr->in_addr, |
|
sizeof(addr->in_addr), bad); |
|
addr->in_addr.ss_family = |
|
be16_to_cpu((__force __be16)addr->in_addr.ss_family); |
|
ret = 0; |
|
bad: |
|
return ret; |
|
} |
|
|
|
int |
|
ceph_decode_entity_addr(void **p, void *end, struct ceph_entity_addr *addr) |
|
{ |
|
u8 marker; |
|
|
|
ceph_decode_8_safe(p, end, marker, bad); |
|
if (marker == 1) |
|
return ceph_decode_entity_addr_versioned(p, end, addr); |
|
else if (marker == 0) |
|
return ceph_decode_entity_addr_legacy(p, end, addr); |
|
bad: |
|
return -EINVAL; |
|
} |
|
EXPORT_SYMBOL(ceph_decode_entity_addr); |
|
|
|
|