* Copyright (c) 2012-2017 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#if INET6
#include <netinet6/in6_pcb.h>
#include <netinet6/ip6protosw.h>
-#endif /* INET6 */
+#endif /* INET6 */
#include <dev/random/randomdev.h>
#include <libkern/crypto/sha1.h>
#include <libkern/crypto/crypto_internal.h>
#include <os/log.h>
-#define FLOW_DIVERT_CONNECT_STARTED 0x00000001
-#define FLOW_DIVERT_READ_CLOSED 0x00000002
-#define FLOW_DIVERT_WRITE_CLOSED 0x00000004
-#define FLOW_DIVERT_TUNNEL_RD_CLOSED 0x00000008
-#define FLOW_DIVERT_TUNNEL_WR_CLOSED 0x00000010
-#define FLOW_DIVERT_TRANSFERRED 0x00000020
+#define FLOW_DIVERT_CONNECT_STARTED 0x00000001
+#define FLOW_DIVERT_READ_CLOSED 0x00000002
+#define FLOW_DIVERT_WRITE_CLOSED 0x00000004
+#define FLOW_DIVERT_TUNNEL_RD_CLOSED 0x00000008
+#define FLOW_DIVERT_TUNNEL_WR_CLOSED 0x00000010
+#define FLOW_DIVERT_TRANSFERRED 0x00000020
#define FLOW_DIVERT_HAS_HMAC 0x00000040
#define FDLOG(level, pcb, format, ...) \
#define FDLOG0(level, pcb, msg) \
os_log_with_type(OS_LOG_DEFAULT, flow_divert_syslog_type_to_oslog_type(level), "(%u): " msg "\n", (pcb)->hash)
-#define FDRETAIN(pcb) if ((pcb) != NULL) OSIncrementAtomic(&(pcb)->ref_count)
-#define FDRELEASE(pcb) \
- do { \
- if ((pcb) != NULL && 1 == OSDecrementAtomic(&(pcb)->ref_count)) { \
- flow_divert_pcb_destroy(pcb); \
- } \
+#define FDRETAIN(pcb) if ((pcb) != NULL) OSIncrementAtomic(&(pcb)->ref_count)
+#define FDRELEASE(pcb) \
+ do { \
+ if ((pcb) != NULL && 1 == OSDecrementAtomic(&(pcb)->ref_count)) { \
+ flow_divert_pcb_destroy(pcb); \
+ } \
} while (0)
-#define FDLOCK(pcb) lck_mtx_lock(&(pcb)->mtx)
-#define FDUNLOCK(pcb) lck_mtx_unlock(&(pcb)->mtx)
+#define FDLOCK(pcb) lck_mtx_lock(&(pcb)->mtx)
+#define FDUNLOCK(pcb) lck_mtx_unlock(&(pcb)->mtx)
-#define FD_CTL_SENDBUFF_SIZE (128 * 1024)
-#define FD_CTL_RCVBUFF_SIZE (128 * 1024)
+#define FD_CTL_SENDBUFF_SIZE (128 * 1024)
+#define FD_CTL_RCVBUFF_SIZE (128 * 1024)
-#define GROUP_BIT_CTL_ENQUEUE_BLOCKED 0
+#define GROUP_BIT_CTL_ENQUEUE_BLOCKED 0
-#define GROUP_COUNT_MAX 32
-#define FLOW_DIVERT_MAX_NAME_SIZE 4096
-#define FLOW_DIVERT_MAX_KEY_SIZE 1024
-#define FLOW_DIVERT_MAX_TRIE_MEMORY (1024 * 1024)
+#define GROUP_COUNT_MAX 32
+#define FLOW_DIVERT_MAX_NAME_SIZE 4096
+#define FLOW_DIVERT_MAX_KEY_SIZE 1024
+#define FLOW_DIVERT_MAX_TRIE_MEMORY (1024 * 1024)
-struct flow_divert_trie_node
-{
+struct flow_divert_trie_node {
uint16_t start;
uint16_t length;
uint16_t child_map;
};
-#define CHILD_MAP_SIZE 256
-#define NULL_TRIE_IDX 0xffff
-#define TRIE_NODE(t, i) ((t)->nodes[(i)])
-#define TRIE_CHILD(t, i, b) (((t)->child_maps + (CHILD_MAP_SIZE * TRIE_NODE(t, i).child_map))[(b)])
-#define TRIE_BYTE(t, i) ((t)->bytes[(i)])
+#define CHILD_MAP_SIZE 256
+#define NULL_TRIE_IDX 0xffff
+#define TRIE_NODE(t, i) ((t)->nodes[(i)])
+#define TRIE_CHILD(t, i, b) (((t)->child_maps + (CHILD_MAP_SIZE * TRIE_NODE(t, i).child_map))[(b)])
+#define TRIE_BYTE(t, i) ((t)->bytes[(i)])
-static struct flow_divert_pcb nil_pcb;
+static struct flow_divert_pcb nil_pcb;
decl_lck_rw_data(static, g_flow_divert_group_lck);
-static struct flow_divert_group **g_flow_divert_groups = NULL;
-static uint32_t g_active_group_count = 0;
+static struct flow_divert_group **g_flow_divert_groups = NULL;
+static uint32_t g_active_group_count = 0;
-static lck_grp_attr_t *flow_divert_grp_attr = NULL;
-static lck_attr_t *flow_divert_mtx_attr = NULL;
-static lck_grp_t *flow_divert_mtx_grp = NULL;
-static errno_t g_init_result = 0;
+static lck_grp_attr_t *flow_divert_grp_attr = NULL;
+static lck_attr_t *flow_divert_mtx_attr = NULL;
+static lck_grp_t *flow_divert_mtx_grp = NULL;
+static errno_t g_init_result = 0;
-static kern_ctl_ref g_flow_divert_kctl_ref = NULL;
+static kern_ctl_ref g_flow_divert_kctl_ref = NULL;
-static struct protosw g_flow_divert_in_protosw;
-static struct pr_usrreqs g_flow_divert_in_usrreqs;
-static struct protosw g_flow_divert_in_udp_protosw;
-static struct pr_usrreqs g_flow_divert_in_udp_usrreqs;
+static struct protosw g_flow_divert_in_protosw;
+static struct pr_usrreqs g_flow_divert_in_usrreqs;
+static struct protosw g_flow_divert_in_udp_protosw;
+static struct pr_usrreqs g_flow_divert_in_udp_usrreqs;
#if INET6
-static struct ip6protosw g_flow_divert_in6_protosw;
-static struct pr_usrreqs g_flow_divert_in6_usrreqs;
-static struct ip6protosw g_flow_divert_in6_udp_protosw;
-static struct pr_usrreqs g_flow_divert_in6_udp_usrreqs;
-#endif /* INET6 */
+static struct ip6protosw g_flow_divert_in6_protosw;
+static struct pr_usrreqs g_flow_divert_in6_usrreqs;
+static struct ip6protosw g_flow_divert_in6_udp_protosw;
+static struct pr_usrreqs g_flow_divert_in6_udp_usrreqs;
+#endif /* INET6 */
-static struct protosw *g_tcp_protosw = NULL;
-static struct ip6protosw *g_tcp6_protosw = NULL;
-static struct protosw *g_udp_protosw = NULL;
-static struct ip6protosw *g_udp6_protosw = NULL;
+static struct protosw *g_tcp_protosw = NULL;
+static struct ip6protosw *g_tcp6_protosw = NULL;
+static struct protosw *g_udp_protosw = NULL;
+static struct ip6protosw *g_udp6_protosw = NULL;
static errno_t
flow_divert_dup_addr(sa_family_t family, struct sockaddr *addr, struct sockaddr **dup);
flow_divert_syslog_type_to_oslog_type(int syslog_type)
{
switch (syslog_type) {
- case LOG_ERR: return OS_LOG_TYPE_ERROR;
- case LOG_INFO: return OS_LOG_TYPE_INFO;
- case LOG_DEBUG: return OS_LOG_TYPE_DEBUG;
- default: return OS_LOG_TYPE_DEFAULT;
+ case LOG_ERR: return OS_LOG_TYPE_ERROR;
+ case LOG_INFO: return OS_LOG_TYPE_INFO;
+ case LOG_DEBUG: return OS_LOG_TYPE_DEBUG;
+ default: return OS_LOG_TYPE_DEFAULT;
}
}
flow_divert_packet_type2str(uint8_t packet_type)
{
switch (packet_type) {
- case FLOW_DIVERT_PKT_CONNECT:
- return "connect";
- case FLOW_DIVERT_PKT_CONNECT_RESULT:
- return "connect result";
- case FLOW_DIVERT_PKT_DATA:
- return "data";
- case FLOW_DIVERT_PKT_CLOSE:
- return "close";
- case FLOW_DIVERT_PKT_READ_NOTIFY:
- return "read notification";
- case FLOW_DIVERT_PKT_PROPERTIES_UPDATE:
- return "properties update";
- case FLOW_DIVERT_PKT_APP_MAP_CREATE:
- return "app map create";
- default:
- return "unknown";
+ case FLOW_DIVERT_PKT_CONNECT:
+ return "connect";
+ case FLOW_DIVERT_PKT_CONNECT_RESULT:
+ return "connect result";
+ case FLOW_DIVERT_PKT_DATA:
+ return "data";
+ case FLOW_DIVERT_PKT_CLOSE:
+ return "close";
+ case FLOW_DIVERT_PKT_READ_NOTIFY:
+ return "read notification";
+ case FLOW_DIVERT_PKT_PROPERTIES_UPDATE:
+ return "properties update";
+ case FLOW_DIVERT_PKT_APP_MAP_CREATE:
+ return "app map create";
+ default:
+ return "unknown";
}
}
static struct flow_divert_pcb *
flow_divert_pcb_lookup(uint32_t hash, struct flow_divert_group *group)
{
- struct flow_divert_pcb key_item;
- struct flow_divert_pcb *fd_cb = NULL;
+ struct flow_divert_pcb key_item;
+ struct flow_divert_pcb *fd_cb = NULL;
key_item.hash = hash;
static errno_t
flow_divert_pcb_insert(struct flow_divert_pcb *fd_cb, uint32_t ctl_unit)
{
- errno_t error = 0;
- struct flow_divert_pcb *exist = NULL;
- struct flow_divert_group *group;
- static uint32_t g_nextkey = 1;
- static uint32_t g_hash_seed = 0;
- int try_count = 0;
+ errno_t error = 0;
+ struct flow_divert_pcb *exist = NULL;
+ struct flow_divert_group *group;
+ static uint32_t g_nextkey = 1;
+ static uint32_t g_hash_seed = 0;
+ int try_count = 0;
if (ctl_unit == 0 || ctl_unit >= GROUP_COUNT_MAX) {
return EINVAL;
socket_lock(fd_cb->so, 0);
do {
- uint32_t key[2];
- uint32_t idx;
+ uint32_t key[2];
+ uint32_t idx;
key[0] = g_nextkey++;
key[1] = RandomULong();
if (exist == NULL) {
fd_cb->group = group;
- FDRETAIN(fd_cb); /* The group now has a reference */
+ FDRETAIN(fd_cb); /* The group now has a reference */
} else {
fd_cb->hash = 0;
error = EEXIST;
static struct flow_divert_pcb *
flow_divert_pcb_create(socket_t so)
{
- struct flow_divert_pcb *new_pcb = NULL;
+ struct flow_divert_pcb *new_pcb = NULL;
MALLOC_ZONE(new_pcb, struct flow_divert_pcb *, sizeof(*new_pcb), M_FLOW_DIVERT_PCB, M_WAITOK);
if (new_pcb == NULL) {
new_pcb->so = so;
new_pcb->log_level = nil_pcb.log_level;
- FDRETAIN(new_pcb); /* Represents the socket's reference */
+ FDRETAIN(new_pcb); /* Represents the socket's reference */
return new_pcb;
}
flow_divert_pcb_destroy(struct flow_divert_pcb *fd_cb)
{
FDLOG(LOG_INFO, fd_cb, "Destroying, app tx %u, app rx %u, tunnel tx %u, tunnel rx %u",
- fd_cb->bytes_written_by_app, fd_cb->bytes_read_by_app, fd_cb->bytes_sent, fd_cb->bytes_received);
+ fd_cb->bytes_written_by_app, fd_cb->bytes_read_by_app, fd_cb->bytes_sent, fd_cb->bytes_received);
if (fd_cb->local_address != NULL) {
FREE(fd_cb->local_address, M_SONAME);
FDLOG(LOG_INFO, fd_cb, "Removing from group %d, ref count = %d", group->ctl_unit, fd_cb->ref_count);
RB_REMOVE(fd_pcb_tree, &group->pcb_tree, fd_cb);
fd_cb->group = NULL;
- FDRELEASE(fd_cb); /* Release the group's reference */
+ FDRELEASE(fd_cb); /* Release the group's reference */
lck_rw_done(&group->lck);
}
}
static int
flow_divert_packet_init(struct flow_divert_pcb *fd_cb, uint8_t packet_type, mbuf_t *packet)
{
- struct flow_divert_packet_header hdr;
- int error = 0;
+ struct flow_divert_packet_header hdr;
+ int error = 0;
error = mbuf_gethdr(MBUF_DONTWAIT, MBUF_TYPE_HEADER, packet);
if (error) {
static int
flow_divert_packet_append_tlv(mbuf_t packet, uint8_t type, uint32_t length, const void *value)
{
- uint32_t net_length = htonl(length);
- int error = 0;
+ uint32_t net_length = htonl(length);
+ int error = 0;
error = mbuf_copyback(packet, mbuf_pkthdr_len(packet), sizeof(type), &type, MBUF_DONTWAIT);
if (error) {
static int
flow_divert_packet_find_tlv(mbuf_t packet, int offset, uint8_t type, int *err, int next)
{
- size_t cursor = offset;
- int error = 0;
- uint32_t curr_length;
- uint8_t curr_type;
+ size_t cursor = offset;
+ int error = 0;
+ uint32_t curr_length;
+ uint8_t curr_type;
*err = 0;
static int
flow_divert_packet_get_tlv(mbuf_t packet, int offset, uint8_t type, size_t buff_len, void *buff, uint32_t *val_size)
{
- int error = 0;
- uint32_t length;
- int tlv_offset;
+ int error = 0;
+ uint32_t length;
+ int tlv_offset;
tlv_offset = flow_divert_packet_find_tlv(packet, offset, type, &error, 0);
if (tlv_offset < 0) {
static int
flow_divert_packet_compute_hmac(mbuf_t packet, struct flow_divert_group *group, uint8_t *hmac)
{
- mbuf_t curr_mbuf = packet;
+ mbuf_t curr_mbuf = packet;
if (g_crypto_funcs == NULL || group->token_key == NULL) {
return ENOPROTOOPT;
static int
flow_divert_packet_verify_hmac(mbuf_t packet, uint32_t ctl_unit)
{
- int error = 0;
- struct flow_divert_group *group = NULL;
- int hmac_offset;
- uint8_t packet_hmac[SHA_DIGEST_LENGTH];
- uint8_t computed_hmac[SHA_DIGEST_LENGTH];
- mbuf_t tail;
+ int error = 0;
+ struct flow_divert_group *group = NULL;
+ int hmac_offset;
+ uint8_t packet_hmac[SHA_DIGEST_LENGTH];
+ uint8_t computed_hmac[SHA_DIGEST_LENGTH];
+ mbuf_t tail;
lck_rw_lock_shared(&g_flow_divert_group_lck);
Boolean cell = FALSE;
Boolean wifi = FALSE;
Boolean wired = FALSE;
-
+
inp = sotoinpcb(fd_cb->so);
if (inp == NULL) {
return;
wifi = (!cell && IFNET_IS_WIFI(ifp));
wired = (!wifi && IFNET_IS_WIRED(ifp));
}
-
+
if (send) {
INP_ADD_STAT(inp, cell, wifi, wired, txpackets, 1);
INP_ADD_STAT(inp, cell, wifi, wired, txbytes, data_len);
inp = sotoinpcb(fd_cb->so);
if (inp && INP_NO_CELLULAR(inp) && inp->inp_last_outifp &&
- IFNET_IS_CELLULAR(inp->inp_last_outifp))
+ IFNET_IS_CELLULAR(inp->inp_last_outifp)) {
return EHOSTUNREACH;
-
+ }
+
return 0;
}
inp = sotoinpcb(fd_cb->so);
if (inp && INP_NO_EXPENSIVE(inp) && inp->inp_last_outifp &&
- IFNET_IS_EXPENSIVE(inp->inp_last_outifp))
+ IFNET_IS_EXPENSIVE(inp->inp_last_outifp)) {
return EHOSTUNREACH;
-
+ }
+
return 0;
}
current_end = TRIE_NODE(trie, current).start + TRIE_NODE(trie, current).length;
for (node_idx = TRIE_NODE(trie, current).start;
- node_idx < current_end &&
- string_idx < string_end &&
- TRIE_BYTE(trie, node_idx) == TRIE_BYTE(trie, string_idx);
- node_idx++, string_idx++);
+ node_idx < current_end &&
+ string_idx < string_end &&
+ TRIE_BYTE(trie, node_idx) == TRIE_BYTE(trie, string_idx);
+ node_idx++, string_idx++) {
+ ;
+ }
string_remainder = string_end - string_idx;
return current;
}
-#define APPLE_WEBCLIP_ID_PREFIX "com.apple.webapp"
+#define APPLE_WEBCLIP_ID_PREFIX "com.apple.webapp"
static uint16_t
flow_divert_trie_search(struct flow_divert_trie *trie, uint8_t *string_bytes)
{
uint16_t node_idx;
for (node_idx = TRIE_NODE(trie, current).start;
- node_idx < node_end && string_bytes[string_idx] != '\0' && string_bytes[string_idx] == TRIE_BYTE(trie, node_idx);
- node_idx++, string_idx++);
+ node_idx < node_end && string_bytes[string_idx] != '\0' && string_bytes[string_idx] == TRIE_BYTE(trie, node_idx);
+ node_idx++, string_idx++) {
+ ;
+ }
if (node_idx == node_end) {
if (string_bytes[string_idx] == '\0') {
return current; /* Got an exact match */
} else if (string_idx == strlen(APPLE_WEBCLIP_ID_PREFIX) &&
- 0 == strncmp((const char *)string_bytes, APPLE_WEBCLIP_ID_PREFIX, string_idx)) {
- string_bytes[string_idx] = '\0';
+ 0 == strncmp((const char *)string_bytes, APPLE_WEBCLIP_ID_PREFIX, string_idx)) {
+ string_bytes[string_idx] = '\0';
return current; /* Got an apple webclip id prefix match */
} else if (TRIE_NODE(trie, current).child_map != NULL_TRIE_IDX) {
next = TRIE_CHILD(trie, current, string_bytes[string_idx]);
static int
flow_divert_send_packet(struct flow_divert_pcb *fd_cb, mbuf_t packet, Boolean enqueue)
{
- int error;
+ int error;
if (fd_cb->group == NULL) {
fd_cb->so->so_error = ECONNABORTED;
static int
flow_divert_create_connect_packet(struct flow_divert_pcb *fd_cb, struct sockaddr *to, struct socket *so, proc_t p, mbuf_t *out_connect_packet)
{
- int error = 0;
- int flow_type = 0;
- char *signing_id = NULL;
- int free_signing_id = 0;
- mbuf_t connect_packet = NULL;
- proc_t src_proc = p;
- int release_proc = 0;
+ int error = 0;
+ int flow_type = 0;
+ char *signing_id = NULL;
+ int free_signing_id = 0;
+ mbuf_t connect_packet = NULL;
+ proc_t src_proc = p;
+ int release_proc = 0;
error = flow_divert_packet_init(fd_cb, FLOW_DIVERT_PKT_CONNECT, &connect_packet);
if (error) {
release_proc = flow_divert_get_src_proc(so, &src_proc);
if (src_proc != PROC_NULL) {
proc_lock(src_proc);
- if (src_proc->p_csflags & (CS_VALID|CS_DEBUGGED)) {
+ if (src_proc->p_csflags & (CS_VALID | CS_DEBUGGED)) {
const char * cs_id;
cs_id = cs_identity_get(src_proc);
signing_id = __DECONST(char *, cs_id);
}
error = flow_divert_packet_append_tlv(connect_packet,
- FLOW_DIVERT_TLV_TRAFFIC_CLASS,
- sizeof(fd_cb->so->so_traffic_class),
- &fd_cb->so->so_traffic_class);
+ FLOW_DIVERT_TLV_TRAFFIC_CLASS,
+ sizeof(fd_cb->so->so_traffic_class),
+ &fd_cb->so->so_traffic_class);
if (error) {
goto done;
}
goto done;
}
error = flow_divert_packet_append_tlv(connect_packet,
- FLOW_DIVERT_TLV_FLOW_TYPE,
- sizeof(flow_type),
- &flow_type);
+ FLOW_DIVERT_TLV_FLOW_TYPE,
+ sizeof(flow_type),
+ &flow_type);
if (error) {
goto done;
if (fd_cb->so->so_flags & SOF_DELEGATED) {
error = flow_divert_packet_append_tlv(connect_packet,
- FLOW_DIVERT_TLV_PID,
- sizeof(fd_cb->so->e_pid),
- &fd_cb->so->e_pid);
+ FLOW_DIVERT_TLV_PID,
+ sizeof(fd_cb->so->e_pid),
+ &fd_cb->so->e_pid);
if (error) {
goto done;
}
error = flow_divert_packet_append_tlv(connect_packet,
- FLOW_DIVERT_TLV_UUID,
- sizeof(fd_cb->so->e_uuid),
- &fd_cb->so->e_uuid);
+ FLOW_DIVERT_TLV_UUID,
+ sizeof(fd_cb->so->e_uuid),
+ &fd_cb->so->e_uuid);
if (error) {
goto done;
}
} else {
error = flow_divert_packet_append_tlv(connect_packet,
- FLOW_DIVERT_TLV_PID,
- sizeof(fd_cb->so->e_pid),
- &fd_cb->so->last_pid);
+ FLOW_DIVERT_TLV_PID,
+ sizeof(fd_cb->so->e_pid),
+ &fd_cb->so->last_pid);
if (error) {
goto done;
}
error = flow_divert_packet_append_tlv(connect_packet,
- FLOW_DIVERT_TLV_UUID,
- sizeof(fd_cb->so->e_uuid),
- &fd_cb->so->last_uuid);
+ FLOW_DIVERT_TLV_UUID,
+ sizeof(fd_cb->so->e_uuid),
+ &fd_cb->so->last_uuid);
if (error) {
goto done;
}
if (fd_cb->local_address != NULL) {
/* socket is bound. */
error = flow_divert_packet_append_tlv(connect_packet, FLOW_DIVERT_TLV_LOCAL_ADDR,
- sizeof(struct sockaddr_storage), fd_cb->local_address);
+ fd_cb->local_address->sa_len, fd_cb->local_address);
if (error) {
goto done;
}
static int
flow_divert_send_connect_result(struct flow_divert_pcb *fd_cb)
{
- int error = 0;
- mbuf_t packet = NULL;
- int rbuff_space = 0;
+ int error = 0;
+ mbuf_t packet = NULL;
+ int rbuff_space = 0;
error = flow_divert_packet_init(fd_cb, FLOW_DIVERT_PKT_CONNECT_RESULT, &packet);
if (error) {
}
rbuff_space = htonl(rbuff_space);
error = flow_divert_packet_append_tlv(packet,
- FLOW_DIVERT_TLV_SPACE_AVAILABLE,
- sizeof(rbuff_space),
- &rbuff_space);
+ FLOW_DIVERT_TLV_SPACE_AVAILABLE,
+ sizeof(rbuff_space),
+ &rbuff_space);
if (error) {
goto done;
}
static int
flow_divert_send_close(struct flow_divert_pcb *fd_cb, int how)
{
- int error = 0;
- mbuf_t packet = NULL;
- uint32_t zero = 0;
+ int error = 0;
+ mbuf_t packet = NULL;
+ uint32_t zero = 0;
error = flow_divert_packet_init(fd_cb, FLOW_DIVERT_PKT_CLOSE, &packet);
if (error) {
static int
flow_divert_tunnel_how_closed(struct flow_divert_pcb *fd_cb)
{
- if ((fd_cb->flags & (FLOW_DIVERT_TUNNEL_RD_CLOSED|FLOW_DIVERT_TUNNEL_WR_CLOSED)) ==
- (FLOW_DIVERT_TUNNEL_RD_CLOSED|FLOW_DIVERT_TUNNEL_WR_CLOSED))
- {
+ if ((fd_cb->flags & (FLOW_DIVERT_TUNNEL_RD_CLOSED | FLOW_DIVERT_TUNNEL_WR_CLOSED)) ==
+ (FLOW_DIVERT_TUNNEL_RD_CLOSED | FLOW_DIVERT_TUNNEL_WR_CLOSED)) {
return SHUT_RDWR;
} else if (fd_cb->flags & FLOW_DIVERT_TUNNEL_RD_CLOSED) {
return SHUT_RD;
static void
flow_divert_send_close_if_needed(struct flow_divert_pcb *fd_cb)
{
- int how = -1;
+ int how = -1;
/* Do not send any close messages if there is still data in the send buffer */
if (fd_cb->so->so_snd.sb_cc == 0) {
- if ((fd_cb->flags & (FLOW_DIVERT_READ_CLOSED|FLOW_DIVERT_TUNNEL_RD_CLOSED)) == FLOW_DIVERT_READ_CLOSED) {
+ if ((fd_cb->flags & (FLOW_DIVERT_READ_CLOSED | FLOW_DIVERT_TUNNEL_RD_CLOSED)) == FLOW_DIVERT_READ_CLOSED) {
/* Socket closed reads, but tunnel did not. Tell tunnel to close reads */
how = SHUT_RD;
}
- if ((fd_cb->flags & (FLOW_DIVERT_WRITE_CLOSED|FLOW_DIVERT_TUNNEL_WR_CLOSED)) == FLOW_DIVERT_WRITE_CLOSED) {
+ if ((fd_cb->flags & (FLOW_DIVERT_WRITE_CLOSED | FLOW_DIVERT_TUNNEL_WR_CLOSED)) == FLOW_DIVERT_WRITE_CLOSED) {
/* Socket closed writes, but tunnel did not. Tell tunnel to close writes */
if (how == SHUT_RD) {
how = SHUT_RDWR;
static errno_t
flow_divert_send_data_packet(struct flow_divert_pcb *fd_cb, mbuf_t data, size_t data_len, struct sockaddr *toaddr, Boolean force)
{
- mbuf_t packet;
- mbuf_t last;
- int error = 0;
+ mbuf_t packet;
+ mbuf_t last;
+ int error = 0;
error = flow_divert_packet_init(fd_cb, FLOW_DIVERT_PKT_DATA, &packet);
if (error) {
static void
flow_divert_send_buffered_data(struct flow_divert_pcb *fd_cb, Boolean force)
{
- size_t to_send;
- size_t sent = 0;
- int error = 0;
- mbuf_t buffer;
+ size_t to_send;
+ size_t sent = 0;
+ int error = 0;
+ mbuf_t buffer;
to_send = fd_cb->so->so_snd.sb_cc;
buffer = fd_cb->so->so_snd.sb_mb;
if (SOCK_TYPE(fd_cb->so) == SOCK_STREAM) {
while (sent < to_send) {
- mbuf_t data;
- size_t data_len;
+ mbuf_t data;
+ size_t data_len;
data_len = to_send - sent;
if (data_len > FLOW_DIVERT_CHUNK_SIZE) {
mbuf_t m;
size_t data_len;
- while(buffer) {
+ while (buffer) {
struct sockaddr *toaddr = flow_divert_get_buffered_target_address(buffer);
m = buffer;
if (m != NULL && m->m_type == MT_DATA) {
break;
}
- } while(m);
+ } while (m);
if (m == NULL) {
/* unexpected */
FDLOG0(LOG_ERR, fd_cb, "failed to find type MT_DATA in the mbuf chain.");
static int
flow_divert_send_app_data(struct flow_divert_pcb *fd_cb, mbuf_t data, struct sockaddr *toaddr)
{
- size_t to_send = mbuf_pkthdr_len(data);
- int error = 0;
+ size_t to_send = mbuf_pkthdr_len(data);
+ int error = 0;
if (to_send > fd_cb->send_window) {
to_send = fd_cb->send_window;
}
if (fd_cb->so->so_snd.sb_cc > 0) {
- to_send = 0; /* If the send buffer is non-empty, then we can't send anything */
+ to_send = 0; /* If the send buffer is non-empty, then we can't send anything */
}
if (SOCK_TYPE(fd_cb->so) == SOCK_STREAM) {
- size_t sent = 0;
- mbuf_t remaining_data = data;
- mbuf_t pkt_data = NULL;
+ size_t sent = 0;
+ mbuf_t remaining_data = data;
+ mbuf_t pkt_data = NULL;
while (sent < to_send && remaining_data != NULL) {
- size_t pkt_data_len;
+ size_t pkt_data_len;
pkt_data = remaining_data;
if (sbspace(&fd_cb->so->so_snd) > 0) {
if (!sbappendstream(&fd_cb->so->so_snd, pkt_data)) {
FDLOG(LOG_ERR, fd_cb, "sbappendstream failed with pkt_data, send buffer size = %u, send_window = %u\n",
- fd_cb->so->so_snd.sb_cc, fd_cb->send_window);
+ fd_cb->so->so_snd.sb_cc, fd_cb->send_window);
}
} else {
error = ENOBUFS;
if (sbspace(&fd_cb->so->so_snd) > 0) {
if (!sbappendstream(&fd_cb->so->so_snd, remaining_data)) {
FDLOG(LOG_ERR, fd_cb, "sbappendstream failed with remaining_data, send buffer size = %u, send_window = %u\n",
- fd_cb->so->so_snd.sb_cc, fd_cb->send_window);
+ fd_cb->so->so_snd.sb_cc, fd_cb->send_window);
}
} else {
error = ENOBUFS;
if (toaddr != NULL) {
if (!sbappendaddr(&fd_cb->so->so_snd, toaddr, data, NULL, &error)) {
FDLOG(LOG_ERR, fd_cb,
- "sbappendaddr failed. send buffer size = %u, send_window = %u, error = %d\n",
- fd_cb->so->so_snd.sb_cc, fd_cb->send_window, error);
+ "sbappendaddr failed. send buffer size = %u, send_window = %u, error = %d\n",
+ fd_cb->so->so_snd.sb_cc, fd_cb->send_window, error);
}
} else {
if (!sbappendrecord(&fd_cb->so->so_snd, data)) {
FDLOG(LOG_ERR, fd_cb,
- "sbappendrecord failed. send buffer size = %u, send_window = %u, error = %d\n",
- fd_cb->so->so_snd.sb_cc, fd_cb->send_window, error);
+ "sbappendrecord failed. send buffer size = %u, send_window = %u, error = %d\n",
+ fd_cb->so->so_snd.sb_cc, fd_cb->send_window, error);
}
}
} else {
static int
flow_divert_send_read_notification(struct flow_divert_pcb *fd_cb, uint32_t read_count)
{
- int error = 0;
- mbuf_t packet = NULL;
- uint32_t net_read_count = htonl(read_count);
+ int error = 0;
+ mbuf_t packet = NULL;
+ uint32_t net_read_count = htonl(read_count);
error = flow_divert_packet_init(fd_cb, FLOW_DIVERT_PKT_READ_NOTIFY, &packet);
if (error) {
static int
flow_divert_send_traffic_class_update(struct flow_divert_pcb *fd_cb, int traffic_class)
{
- int error = 0;
- mbuf_t packet = NULL;
+ int error = 0;
+ mbuf_t packet = NULL;
error = flow_divert_packet_init(fd_cb, FLOW_DIVERT_PKT_PROPERTIES_UPDATE, &packet);
if (error) {
static void
flow_divert_handle_connect_result(struct flow_divert_pcb *fd_cb, mbuf_t packet, int offset)
{
- uint32_t connect_error;
- uint32_t ctl_unit = 0;
- int error = 0;
- struct flow_divert_group *grp = NULL;
- struct sockaddr_storage local_address;
- int out_if_index = 0;
- struct sockaddr_storage remote_address;
- uint32_t send_window;
- uint32_t app_data_length = 0;
+ uint32_t connect_error;
+ uint32_t ctl_unit = 0;
+ int error = 0;
+ struct flow_divert_group *grp = NULL;
+ struct sockaddr_storage local_address;
+ int out_if_index = 0;
+ struct sockaddr_storage remote_address;
+ uint32_t send_window;
+ uint32_t app_data_length = 0;
memset(&local_address, 0, sizeof(local_address));
memset(&remote_address, 0, sizeof(remote_address));
}
error = 0;
- connect_error = ntohl(connect_error);
- ctl_unit = ntohl(ctl_unit);
+ connect_error = ntohl(connect_error);
+ ctl_unit = ntohl(ctl_unit);
lck_rw_lock_shared(&g_flow_divert_group_lck);
FDLOCK(fd_cb);
if (fd_cb->so != NULL) {
- struct inpcb *inp = NULL;
- struct ifnet *ifp = NULL;
- struct flow_divert_group *old_group;
+ struct inpcb *inp = NULL;
+ struct ifnet *ifp = NULL;
+ struct flow_divert_group *old_group;
socket_lock(fd_cb->so, 0);
}
if (app_data_length > 0) {
- uint8_t *app_data = NULL;
+ uint8_t *app_data = NULL;
MALLOC(app_data, uint8_t *, app_data_length, M_TEMP, M_WAITOK);
if (app_data != NULL) {
error = flow_divert_packet_get_tlv(packet, offset, FLOW_DIVERT_TLV_APP_DATA, app_data_length, app_data, NULL);
static void
flow_divert_handle_close(struct flow_divert_pcb *fd_cb, mbuf_t packet, int offset)
{
- uint32_t close_error;
- int error = 0;
- int how;
+ uint32_t close_error;
+ int error = 0;
+ int how;
error = flow_divert_packet_get_tlv(packet, offset, FLOW_DIVERT_TLV_ERROR_CODE, sizeof(close_error), &close_error, NULL);
if (error) {
fd_cb->so->so_error = ntohl(close_error);
flow_divert_update_closed_state(fd_cb, how, TRUE);
-
+
how = flow_divert_tunnel_how_closed(fd_cb);
if (how == SHUT_RDWR) {
flow_divert_disconnect_socket(fd_cb->so);
static mbuf_t
flow_divert_get_control_mbuf(struct flow_divert_pcb *fd_cb)
{
- struct inpcb *inp = sotoinpcb(fd_cb->so);
- if (inp->inp_vflag & INP_IPV4 && inp->inp_flags & INP_RECVDSTADDR) {
- struct sockaddr_in *sin = (struct sockaddr_in *)(void *)fd_cb->local_address;
-
- return sbcreatecontrol((caddr_t) &sin->sin_addr, sizeof(struct in_addr), IP_RECVDSTADDR, IPPROTO_IP);
- } else if (inp->inp_vflag & INP_IPV6 && (inp->inp_flags & IN6P_PKTINFO) != 0) {
- struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)(void *)fd_cb->local_address;
- struct in6_pktinfo pi6;
-
- bcopy(&sin6->sin6_addr, &pi6.ipi6_addr, sizeof (struct in6_addr));
- pi6.ipi6_ifindex = 0;
- return sbcreatecontrol((caddr_t)&pi6, sizeof (struct in6_pktinfo), IPV6_PKTINFO, IPPROTO_IPV6);
+ if (fd_cb->local_address != NULL) {
+ struct inpcb *inp = sotoinpcb(fd_cb->so);
+ if ((inp->inp_vflag & INP_IPV4) &&
+ (inp->inp_flags & INP_RECVDSTADDR) &&
+ fd_cb->local_address->sa_family == AF_INET &&
+ fd_cb->local_address->sa_len >= sizeof(struct sockaddr_in)) {
+ struct sockaddr_in *sin = (struct sockaddr_in *)(void *)fd_cb->local_address;
+
+ return sbcreatecontrol((caddr_t) &sin->sin_addr, sizeof(struct in_addr), IP_RECVDSTADDR, IPPROTO_IP);
+ } else if ((inp->inp_vflag & INP_IPV6) &&
+ (inp->inp_flags & IN6P_PKTINFO) &&
+ fd_cb->local_address->sa_family == AF_INET6 &&
+ fd_cb->local_address->sa_len >= sizeof(struct sockaddr_in6)) {
+ struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)(void *)fd_cb->local_address;
+ struct in6_pktinfo pi6;
+
+ bcopy(&sin6->sin6_addr, &pi6.ipi6_addr, sizeof(struct in6_addr));
+ pi6.ipi6_ifindex = 0;
+ return sbcreatecontrol((caddr_t)&pi6, sizeof(struct in6_pktinfo), IPV6_PKTINFO, IPPROTO_IPV6);
+ }
}
- return (NULL);
+ return NULL;
}
static void
{
FDLOCK(fd_cb);
if (fd_cb->so != NULL) {
- int error = 0;
- mbuf_t data = NULL;
- size_t data_size;
+ int error = 0;
+ mbuf_t data = NULL;
+ size_t data_size;
struct sockaddr_storage remote_address;
boolean_t got_remote_sa = FALSE;
if (error || data == NULL) {
FDLOG(LOG_ERR, fd_cb, "mbuf_split failed: %d", error);
} else {
- if (flow_divert_check_no_cellular(fd_cb) ||
- flow_divert_check_no_expensive(fd_cb))
- {
+ if (flow_divert_check_no_cellular(fd_cb) ||
+ flow_divert_check_no_expensive(fd_cb)) {
flow_divert_update_closed_state(fd_cb, SHUT_RDWR, TRUE);
flow_divert_send_close(fd_cb, SHUT_RDWR);
flow_divert_disconnect_socket(fd_cb->so);
if (got_remote_sa == TRUE) {
error = flow_divert_dup_addr(fd_cb->so->so_proto->pr_domain->dom_family,
- (struct sockaddr *)&remote_address, &append_sa);
+ (struct sockaddr *)&remote_address, &append_sa);
} else {
error = flow_divert_dup_addr(fd_cb->so->so_proto->pr_domain->dom_family,
- fd_cb->remote_address, &append_sa);
+ fd_cb->remote_address, &append_sa);
}
if (error) {
FDLOG0(LOG_ERR, fd_cb, "failed to dup the socket address.");
}
}
socket_unlock(fd_cb->so, 0);
-
- if (data != NULL) {
- mbuf_freem(data);
- }
}
FDUNLOCK(fd_cb);
}
static void
flow_divert_handle_read_notification(struct flow_divert_pcb *fd_cb, mbuf_t packet, int offset)
{
- uint32_t read_count;
- int error = 0;
+ uint32_t read_count;
+ int error = 0;
error = flow_divert_packet_get_tlv(packet, offset, FLOW_DIVERT_TLV_READ_COUNT, sizeof(read_count), &read_count, NULL);
if (error) {
static void
flow_divert_handle_properties_update(struct flow_divert_pcb *fd_cb, mbuf_t packet, int offset)
{
- int error = 0;
- struct sockaddr_storage local_address;
- int out_if_index = 0;
- struct sockaddr_storage remote_address;
- uint32_t app_data_length = 0;
+ int error = 0;
+ struct sockaddr_storage local_address;
+ int out_if_index = 0;
+ struct sockaddr_storage remote_address;
+ uint32_t app_data_length = 0;
FDLOG0(LOG_INFO, fd_cb, "received a properties update");
}
if (app_data_length > 0) {
- uint8_t *app_data = NULL;
+ uint8_t *app_data = NULL;
MALLOC(app_data, uint8_t *, app_data_length, M_TEMP, M_WAITOK);
if (app_data != NULL) {
error = flow_divert_packet_get_tlv(packet, offset, FLOW_DIVERT_TLV_APP_DATA, app_data_length, app_data, NULL);
/* Compute the number of signing IDs and the total amount of bytes needed to store them */
for (cursor = flow_divert_packet_find_tlv(packet, offset, FLOW_DIVERT_TLV_SIGNING_ID, &error, 0);
- cursor >= 0;
- cursor = flow_divert_packet_find_tlv(packet, cursor, FLOW_DIVERT_TLV_SIGNING_ID, &error, 1))
- {
+ cursor >= 0;
+ cursor = flow_divert_packet_find_tlv(packet, cursor, FLOW_DIVERT_TLV_SIGNING_ID, &error, 1)) {
uint32_t sid_size = 0;
flow_divert_packet_get_tlv(packet, cursor, FLOW_DIVERT_TLV_SIGNING_ID, 0, NULL, &sid_size);
new_trie.bytes_count += sid_size;
new_trie.child_maps_count = (prefix_count + 1); /* + 1 for the root node */
FDLOG(LOG_INFO, &nil_pcb, "Nodes count = %lu, child maps count = %lu, bytes_count = %lu",
- new_trie.nodes_count, new_trie.child_maps_count, new_trie.bytes_count);
+ new_trie.nodes_count, new_trie.child_maps_count, new_trie.bytes_count);
nodes_mem_size = (sizeof(*new_trie.nodes) * new_trie.nodes_count);
child_maps_mem_size = (sizeof(*new_trie.child_maps) * CHILD_MAP_SIZE * new_trie.child_maps_count);
MALLOC(new_trie.memory, void *, trie_memory_size, M_TEMP, M_WAITOK);
if (new_trie.memory == NULL) {
FDLOG(LOG_ERR, &nil_pcb, "Failed to allocate %lu bytes of memory for the signing ID trie",
- nodes_mem_size + child_maps_mem_size + bytes_mem_size);
+ nodes_mem_size + child_maps_mem_size + bytes_mem_size);
lck_rw_done(&group->lck);
return;
}
/* Add each signing ID to the trie */
for (cursor = flow_divert_packet_find_tlv(packet, offset, FLOW_DIVERT_TLV_SIGNING_ID, &error, 0);
- cursor >= 0;
- cursor = flow_divert_packet_find_tlv(packet, cursor, FLOW_DIVERT_TLV_SIGNING_ID, &error, 1))
- {
+ cursor >= 0;
+ cursor = flow_divert_packet_find_tlv(packet, cursor, FLOW_DIVERT_TLV_SIGNING_ID, &error, 1)) {
uint32_t sid_size = 0;
flow_divert_packet_get_tlv(packet, cursor, FLOW_DIVERT_TLV_SIGNING_ID, 0, NULL, &sid_size);
if (new_trie.bytes_free_next + sid_size <= new_trie.bytes_count) {
static int
flow_divert_input(mbuf_t packet, struct flow_divert_group *group)
{
- struct flow_divert_packet_header hdr;
- int error = 0;
- struct flow_divert_pcb *fd_cb;
+ struct flow_divert_packet_header hdr;
+ int error = 0;
+ struct flow_divert_pcb *fd_cb;
if (mbuf_pkthdr_len(packet) < sizeof(hdr)) {
FDLOG(LOG_ERR, &nil_pcb, "got a bad packet, length (%lu) < sizeof hdr (%lu)", mbuf_pkthdr_len(packet), sizeof(hdr));
if (hdr.conn_id == 0) {
switch (hdr.packet_type) {
- case FLOW_DIVERT_PKT_GROUP_INIT:
- flow_divert_handle_group_init(group, packet, sizeof(hdr));
- break;
- case FLOW_DIVERT_PKT_APP_MAP_CREATE:
- flow_divert_handle_app_map_create(group, packet, sizeof(hdr));
- break;
- default:
- FDLOG(LOG_WARNING, &nil_pcb, "got an unknown message type: %d", hdr.packet_type);
- break;
+ case FLOW_DIVERT_PKT_GROUP_INIT:
+ flow_divert_handle_group_init(group, packet, sizeof(hdr));
+ break;
+ case FLOW_DIVERT_PKT_APP_MAP_CREATE:
+ flow_divert_handle_app_map_create(group, packet, sizeof(hdr));
+ break;
+ default:
+ FDLOG(LOG_WARNING, &nil_pcb, "got an unknown message type: %d", hdr.packet_type);
+ break;
}
goto done;
}
- fd_cb = flow_divert_pcb_lookup(hdr.conn_id, group); /* This retains the PCB */
+ fd_cb = flow_divert_pcb_lookup(hdr.conn_id, group); /* This retains the PCB */
if (fd_cb == NULL) {
if (hdr.packet_type != FLOW_DIVERT_PKT_CLOSE && hdr.packet_type != FLOW_DIVERT_PKT_READ_NOTIFY) {
FDLOG(LOG_NOTICE, &nil_pcb, "got a %s message from group %d for an unknown pcb: %u", flow_divert_packet_type2str(hdr.packet_type), group->ctl_unit, hdr.conn_id);
}
switch (hdr.packet_type) {
- case FLOW_DIVERT_PKT_CONNECT_RESULT:
- flow_divert_handle_connect_result(fd_cb, packet, sizeof(hdr));
- break;
- case FLOW_DIVERT_PKT_CLOSE:
- flow_divert_handle_close(fd_cb, packet, sizeof(hdr));
- break;
- case FLOW_DIVERT_PKT_DATA:
- flow_divert_handle_data(fd_cb, packet, sizeof(hdr));
- break;
- case FLOW_DIVERT_PKT_READ_NOTIFY:
- flow_divert_handle_read_notification(fd_cb, packet, sizeof(hdr));
- break;
- case FLOW_DIVERT_PKT_PROPERTIES_UPDATE:
- flow_divert_handle_properties_update(fd_cb, packet, sizeof(hdr));
- break;
- default:
- FDLOG(LOG_WARNING, fd_cb, "got an unknown message type: %d", hdr.packet_type);
- break;
+ case FLOW_DIVERT_PKT_CONNECT_RESULT:
+ flow_divert_handle_connect_result(fd_cb, packet, sizeof(hdr));
+ break;
+ case FLOW_DIVERT_PKT_CLOSE:
+ flow_divert_handle_close(fd_cb, packet, sizeof(hdr));
+ break;
+ case FLOW_DIVERT_PKT_DATA:
+ flow_divert_handle_data(fd_cb, packet, sizeof(hdr));
+ break;
+ case FLOW_DIVERT_PKT_READ_NOTIFY:
+ flow_divert_handle_read_notification(fd_cb, packet, sizeof(hdr));
+ break;
+ case FLOW_DIVERT_PKT_PROPERTIES_UPDATE:
+ flow_divert_handle_properties_update(fd_cb, packet, sizeof(hdr));
+ break;
+ default:
+ FDLOG(LOG_WARNING, fd_cb, "got an unknown message type: %d", hdr.packet_type);
+ break;
}
FDRELEASE(fd_cb);
static void
flow_divert_close_all(struct flow_divert_group *group)
{
- struct flow_divert_pcb *fd_cb;
- SLIST_HEAD(, flow_divert_pcb) tmp_list;
+ struct flow_divert_pcb *fd_cb;
+ SLIST_HEAD(, flow_divert_pcb) tmp_list;
SLIST_INIT(&tmp_list);
void
flow_divert_detach(struct socket *so)
{
- struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
+ struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
VERIFY((so->so_flags & SOF_FLOW_DIVERT) && so->so_fd_pcb != NULL);
FDUNLOCK(fd_cb);
socket_lock(so, 0);
- FDRELEASE(fd_cb); /* Release the socket's reference */
+ FDRELEASE(fd_cb); /* Release the socket's reference */
}
static int
flow_divert_close(struct socket *so)
{
- struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
+ struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
VERIFY((so->so_flags & SOF_FLOW_DIVERT) && so->so_fd_pcb != NULL);
sae_connid_t cid __unused)
{
if (aid != SAE_ASSOCID_ANY && aid != SAE_ASSOCID_ALL) {
- return (EINVAL);
+ return EINVAL;
}
- return (flow_divert_close(so));
+ return flow_divert_close(so);
}
static int
flow_divert_shutdown(struct socket *so)
{
- struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
+ struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
VERIFY((so->so_flags & SOF_FLOW_DIVERT) && so->so_fd_pcb != NULL);
static int
flow_divert_rcvd(struct socket *so, int flags __unused)
{
- struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
- uint32_t latest_sb_size;
- uint32_t read_count;
+ struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
+ uint32_t latest_sb_size;
+ uint32_t read_count;
VERIFY((so->so_flags & SOF_FLOW_DIVERT) && so->so_fd_pcb != NULL);
if (fd_cb->sb_size < latest_sb_size) {
panic("flow divert rcvd event handler (%u): saved rcv buffer size (%u) is less than latest rcv buffer size (%u)",
- fd_cb->hash, fd_cb->sb_size, latest_sb_size);
+ fd_cb->hash, fd_cb->sb_size, latest_sb_size);
}
read_count = fd_cb->sb_size - latest_sb_size;
static boolean_t
flow_divert_is_sockaddr_valid(struct sockaddr *addr)
{
- switch(addr->sa_family)
- {
- case AF_INET:
- if (addr->sa_len != sizeof(struct sockaddr_in)) {
- return FALSE;
- }
- break;
+ switch (addr->sa_family) {
+ case AF_INET:
+ if (addr->sa_len != sizeof(struct sockaddr_in)) {
+ return FALSE;
+ }
+ break;
#if INET6
- case AF_INET6:
- if (addr->sa_len != sizeof(struct sockaddr_in6)) {
- return FALSE;
- }
- break;
-#endif /* INET6 */
- default:
+ case AF_INET6:
+ if (addr->sa_len != sizeof(struct sockaddr_in6)) {
return FALSE;
+ }
+ break;
+#endif /* INET6 */
+ default:
+ return FALSE;
}
return TRUE;
}
if (*local_socket == NULL) {
error = ENOBUFS;
}
- return (error);
+ return error;
}
static boolean_t
flow_divert_has_pcb_local_address(const struct inpcb *inp)
{
- return (inp->inp_lport != 0
- && (inp->inp_laddr.s_addr != INADDR_ANY || !IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)));
+ return inp->inp_lport != 0
+ && (inp->inp_laddr.s_addr != INADDR_ANY || !IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr));
}
static errno_t
flow_divert_dup_addr(sa_family_t family, struct sockaddr *addr,
- struct sockaddr **dup)
+ struct sockaddr **dup)
{
- int error = 0;
- struct sockaddr *result;
- struct sockaddr_storage ss;
+ int error = 0;
+ struct sockaddr *result;
+ struct sockaddr_storage ss;
if (addr != NULL) {
result = addr;
else if (ss.ss_family == AF_INET6) {
ss.ss_len = sizeof(struct sockaddr_in6);
}
-#endif /* INET6 */
+#endif /* INET6 */
else {
error = EINVAL;
}
inp = sotoinpcb(so);
if (inp != NULL) {
#if INET6
- if (SOCK_CHECK_DOM(so, PF_INET6))
+ if (SOCK_CHECK_DOM(so, PF_INET6)) {
in6_pcbdetach(inp);
- else
+ } else
#endif /* INET6 */
- in_pcbdetach(inp);
+ in_pcbdetach(inp);
}
}
}
static errno_t
flow_divert_getpeername(struct socket *so, struct sockaddr **sa)
{
- struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
+ struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
VERIFY((so->so_flags & SOF_FLOW_DIVERT) && so->so_fd_pcb != NULL);
- return flow_divert_dup_addr(so->so_proto->pr_domain->dom_family,
- fd_cb->remote_address,
- sa);
+ return flow_divert_dup_addr(so->so_proto->pr_domain->dom_family,
+ fd_cb->remote_address,
+ sa);
}
static errno_t
flow_divert_getsockaddr(struct socket *so, struct sockaddr **sa)
{
- struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
+ struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
VERIFY((so->so_flags & SOF_FLOW_DIVERT) && so->so_fd_pcb != NULL);
- return flow_divert_dup_addr(so->so_proto->pr_domain->dom_family,
- fd_cb->local_address,
- sa);
+ return flow_divert_dup_addr(so->so_proto->pr_domain->dom_family,
+ fd_cb->local_address,
+ sa);
}
static errno_t
flow_divert_ctloutput(struct socket *so, struct sockopt *sopt)
{
- struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
+ struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
VERIFY((so->so_flags & SOF_FLOW_DIVERT) && so->so_fd_pcb != NULL);
errno_t
flow_divert_connect_out(struct socket *so, struct sockaddr *to, proc_t p)
{
- struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
- int error = 0;
- struct inpcb *inp = sotoinpcb(so);
- struct sockaddr_in *sinp;
- mbuf_t connect_packet = NULL;
- int do_send = 1;
+ struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
+ int error = 0;
+ struct inpcb *inp = sotoinpcb(so);
+ struct sockaddr_in *sinp;
+ mbuf_t connect_packet = NULL;
+ int do_send = 1;
VERIFY((so->so_flags & SOF_FLOW_DIVERT) && so->so_fd_pcb != NULL);
int error;
if (inp == NULL) {
- return (EINVAL);
+ return EINVAL;
}
VERIFY(dst != NULL);
}
if (error == 0 && pcid != NULL) {
- *pcid = 1; /* there is only 1 connection for a TCP */
+ *pcid = 1; /* there is only 1 connection for a TCP */
}
- return (error);
+ return error;
}
static int
sae_associd_t aid __unused, sae_connid_t *pcid, uint32_t flags __unused, void *arg __unused,
uint32_t arglen __unused, struct uio *uio, user_ssize_t *bytes_written)
{
- return (flow_divert_connectx_out_common(so, dst, p, pcid, uio, bytes_written));
+ return flow_divert_connectx_out_common(so, dst, p, pcid, uio, bytes_written);
}
#if INET6
sae_associd_t aid __unused, sae_connid_t *pcid, uint32_t flags __unused, void *arg __unused,
uint32_t arglen __unused, struct uio *uio, user_ssize_t *bytes_written)
{
- return (flow_divert_connectx_out_common(so, dst, p, pcid, uio, bytes_written));
+ return flow_divert_connectx_out_common(so, dst, p, pcid, uio, bytes_written);
}
#endif /* INET6 */
static int
flow_divert_getconninfo(struct socket *so, sae_connid_t cid, uint32_t *flags,
- uint32_t *ifindex, int32_t *soerror, user_addr_t src, socklen_t *src_len,
- user_addr_t dst, socklen_t *dst_len, uint32_t *aux_type,
- user_addr_t aux_data __unused, uint32_t *aux_len)
+ uint32_t *ifindex, int32_t *soerror, user_addr_t src, socklen_t *src_len,
+ user_addr_t dst, socklen_t *dst_len, uint32_t *aux_type,
+ user_addr_t aux_data __unused, uint32_t *aux_len)
{
- int error = 0;
- struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
- struct ifnet *ifp = NULL;
- struct inpcb *inp = sotoinpcb(so);
+ int error = 0;
+ struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
+ struct ifnet *ifp = NULL;
+ struct inpcb *inp = sotoinpcb(so);
VERIFY((so->so_flags & SOF_FLOW_DIVERT));
int error = 0;
switch (cmd) {
- case SIOCGCONNINFO32: {
- struct so_cinforeq32 cifr;
- bcopy(data, &cifr, sizeof (cifr));
- error = flow_divert_getconninfo(so, cifr.scir_cid, &cifr.scir_flags,
- &cifr.scir_ifindex, &cifr.scir_error, cifr.scir_src,
- &cifr.scir_src_len, cifr.scir_dst, &cifr.scir_dst_len,
- &cifr.scir_aux_type, cifr.scir_aux_data,
- &cifr.scir_aux_len);
- if (error == 0) {
- bcopy(&cifr, data, sizeof (cifr));
- }
- break;
+ case SIOCGCONNINFO32: {
+ struct so_cinforeq32 cifr;
+ bcopy(data, &cifr, sizeof(cifr));
+ error = flow_divert_getconninfo(so, cifr.scir_cid, &cifr.scir_flags,
+ &cifr.scir_ifindex, &cifr.scir_error, cifr.scir_src,
+ &cifr.scir_src_len, cifr.scir_dst, &cifr.scir_dst_len,
+ &cifr.scir_aux_type, cifr.scir_aux_data,
+ &cifr.scir_aux_len);
+ if (error == 0) {
+ bcopy(&cifr, data, sizeof(cifr));
}
+ break;
+ }
- case SIOCGCONNINFO64: {
- struct so_cinforeq64 cifr;
- bcopy(data, &cifr, sizeof (cifr));
- error = flow_divert_getconninfo(so, cifr.scir_cid, &cifr.scir_flags,
- &cifr.scir_ifindex, &cifr.scir_error, cifr.scir_src,
- &cifr.scir_src_len, cifr.scir_dst, &cifr.scir_dst_len,
- &cifr.scir_aux_type, cifr.scir_aux_data,
- &cifr.scir_aux_len);
- if (error == 0) {
- bcopy(&cifr, data, sizeof (cifr));
- }
- break;
+ case SIOCGCONNINFO64: {
+ struct so_cinforeq64 cifr;
+ bcopy(data, &cifr, sizeof(cifr));
+ error = flow_divert_getconninfo(so, cifr.scir_cid, &cifr.scir_flags,
+ &cifr.scir_ifindex, &cifr.scir_error, cifr.scir_src,
+ &cifr.scir_src_len, cifr.scir_dst, &cifr.scir_dst_len,
+ &cifr.scir_aux_type, cifr.scir_aux_data,
+ &cifr.scir_aux_len);
+ if (error == 0) {
+ bcopy(&cifr, data, sizeof(cifr));
}
+ break;
+ }
- default:
- error = EOPNOTSUPP;
+ default:
+ error = EOPNOTSUPP;
}
return error;
static errno_t
flow_divert_data_out(struct socket *so, int flags, mbuf_t data, struct sockaddr *to, mbuf_t control, struct proc *p)
{
- struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
- int error = 0;
+ struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
+ int error = 0;
struct inpcb *inp;
VERIFY((so->so_flags & SOF_FLOW_DIVERT) && so->so_fd_pcb != NULL);
error = EINVAL;
goto done; /* We don't support OOB data */
}
-
- error = flow_divert_check_no_cellular(fd_cb) ||
+
+ error = flow_divert_check_no_cellular(fd_cb) ||
flow_divert_check_no_expensive(fd_cb);
if (error) {
goto done;
static int
flow_divert_preconnect(struct socket *so)
{
- struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
+ struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
int error = 0;
if (!(fd_cb->flags & FLOW_DIVERT_CONNECT_STARTED) && fd_cb->connect_packet != NULL) {
else {
so->so_proto = (struct protosw *)&g_flow_divert_in6_protosw;
}
-#endif /* INET6 */
+#endif /* INET6 */
}
static void
flow_divert_set_udp_protosw(struct socket *so)
{
- so->so_flags |= SOF_FLOW_DIVERT;
- if (SOCK_DOM(so) == PF_INET) {
- so->so_proto = &g_flow_divert_in_udp_protosw;
- }
+ so->so_flags |= SOF_FLOW_DIVERT;
+ if (SOCK_DOM(so) == PF_INET) {
+ so->so_proto = &g_flow_divert_in_udp_protosw;
+ }
#if INET6
- else {
- so->so_proto = (struct protosw *)&g_flow_divert_in6_udp_protosw;
- }
+ else {
+ so->so_proto = (struct protosw *)&g_flow_divert_in6_udp_protosw;
+ }
#endif /* INET6 */
}
static errno_t
flow_divert_attach(struct socket *so, uint32_t flow_id, uint32_t ctl_unit)
{
- int error = 0;
- struct flow_divert_pcb *fd_cb = NULL;
- struct ifnet *ifp = NULL;
- struct inpcb *inp = NULL;
- struct socket *old_so;
- mbuf_t recv_data = NULL;
+ int error = 0;
+ struct flow_divert_pcb *fd_cb = NULL;
+ struct ifnet *ifp = NULL;
+ struct inpcb *inp = NULL;
+ struct socket *old_so;
+ mbuf_t recv_data = NULL;
socket_unlock(so, 0);
/* Dis-associate the flow divert control block from its current socket */
old_so = fd_cb->so;
- inp = sotoinpcb(old_so);
+ inp = sotoinpcb(old_so);
VERIFY(inp != NULL);
socket_lock(so, 0);
if (fd_cb != NULL) {
- FDRELEASE(fd_cb); /* Release the reference obtained via flow_divert_pcb_lookup */
+ FDRELEASE(fd_cb); /* Release the reference obtained via flow_divert_pcb_lookup */
}
return error;
errno_t
flow_divert_implicit_data_out(struct socket *so, int flags, mbuf_t data, struct sockaddr *to, mbuf_t control, struct proc *p)
{
- struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
+ struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
struct inpcb *inp;
- int error = 0;
+ int error = 0;
inp = sotoinpcb(so);
if (inp == NULL) {
- return (EINVAL);
- }
-
- if (fd_cb == NULL) {
- uint32_t fd_ctl_unit = necp_socket_get_flow_divert_control_unit(inp);
- if (fd_ctl_unit > 0) {
- error = flow_divert_pcb_init(so, fd_ctl_unit);
- fd_cb = so->so_fd_pcb;
- if (error != 0 || fd_cb == NULL) {
- goto done;
- }
- } else {
- error = ENETDOWN;
- goto done;
- }
- }
- return flow_divert_data_out(so, flags, data, to, control, p);
+ return EINVAL;
+ }
+
+ if (fd_cb == NULL) {
+ uint32_t fd_ctl_unit = necp_socket_get_flow_divert_control_unit(inp);
+ if (fd_ctl_unit > 0) {
+ error = flow_divert_pcb_init(so, fd_ctl_unit);
+ fd_cb = so->so_fd_pcb;
+ if (error != 0 || fd_cb == NULL) {
+ goto done;
+ }
+ } else {
+ error = ENETDOWN;
+ goto done;
+ }
+ }
+ return flow_divert_data_out(so, flags, data, to, control, p);
done:
- if (data) {
- mbuf_freem(data);
- }
- if (control) {
- mbuf_free(control);
- }
+ if (data) {
+ mbuf_freem(data);
+ }
+ if (control) {
+ mbuf_free(control);
+ }
- return error;
+ return error;
}
errno_t
if (so->so_flags & SOF_FLOW_DIVERT) {
return EALREADY;
}
-
+
fd_cb = flow_divert_pcb_create(so);
if (fd_cb != NULL) {
error = flow_divert_pcb_insert(fd_cb, ctl_unit);
errno_t
flow_divert_token_set(struct socket *so, struct sockopt *sopt)
{
- uint32_t ctl_unit = 0;
- uint32_t key_unit = 0;
- uint32_t flow_id = 0;
- int error = 0;
- int hmac_error = 0;
- mbuf_t token = NULL;
+ uint32_t ctl_unit = 0;
+ uint32_t key_unit = 0;
+ uint32_t flow_id = 0;
+ int error = 0;
+ int hmac_error = 0;
+ mbuf_t token = NULL;
if (so->so_flags & SOF_FLOW_DIVERT) {
error = EALREADY;
(SOCK_PROTO(so) != IPPROTO_TCP && SOCK_PROTO(so) != IPPROTO_UDP) ||
(SOCK_DOM(so) != PF_INET
#if INET6
- && SOCK_DOM(so) != PF_INET6
+ && SOCK_DOM(so) != PF_INET6
#endif
- ))
- {
+ )) {
error = EINVAL;
goto done;
} else {
int log_level = LOG_NOTICE;
error = flow_divert_packet_get_tlv(token, 0, FLOW_DIVERT_TLV_LOG_LEVEL,
- sizeof(log_level), &log_level, NULL);
+ sizeof(log_level), &log_level, NULL);
if (error == 0) {
fd_cb->log_level = log_level;
}
errno_t
flow_divert_token_get(struct socket *so, struct sockopt *sopt)
{
- uint32_t ctl_unit;
- int error = 0;
- uint8_t hmac[SHA_DIGEST_LENGTH];
- struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
- mbuf_t token = NULL;
- struct flow_divert_group *control_group = NULL;
+ uint32_t ctl_unit;
+ int error = 0;
+ uint8_t hmac[SHA_DIGEST_LENGTH];
+ struct flow_divert_pcb *fd_cb = so->so_fd_pcb;
+ mbuf_t token = NULL;
+ struct flow_divert_group *control_group = NULL;
if (!(so->so_flags & SOF_FLOW_DIVERT)) {
error = EINVAL;
lck_rw_lock_shared(&g_flow_divert_group_lck);
if (g_flow_divert_groups != NULL && g_active_group_count > 0 &&
- fd_cb->control_group_unit > 0 && fd_cb->control_group_unit < GROUP_COUNT_MAX)
- {
+ fd_cb->control_group_unit > 0 && fd_cb->control_group_unit < GROUP_COUNT_MAX) {
control_group = g_flow_divert_groups[fd_cb->control_group_unit];
}
error = soopt_mcopyout(sopt, token);
if (error) {
- token = NULL; /* For some reason, soopt_mcopyout() frees the mbuf if it fails */
+ token = NULL; /* For some reason, soopt_mcopyout() frees the mbuf if it fails */
goto done;
}
static errno_t
flow_divert_kctl_connect(kern_ctl_ref kctlref __unused, struct sockaddr_ctl *sac, void **unitinfo)
{
- struct flow_divert_group *new_group = NULL;
- int error = 0;
+ struct flow_divert_group *new_group = NULL;
+ int error = 0;
if (sac->sc_unit >= GROUP_COUNT_MAX) {
error = EINVAL;
if (g_flow_divert_groups == NULL) {
MALLOC(g_flow_divert_groups,
- struct flow_divert_group **,
- GROUP_COUNT_MAX * sizeof(struct flow_divert_group *),
- M_TEMP,
- M_WAITOK | M_ZERO);
+ struct flow_divert_group **,
+ GROUP_COUNT_MAX * sizeof(struct flow_divert_group *),
+ M_TEMP,
+ M_WAITOK | M_ZERO);
}
if (g_flow_divert_groups == NULL) {
static errno_t
flow_divert_kctl_disconnect(kern_ctl_ref kctlref __unused, uint32_t unit, void *unitinfo)
{
- struct flow_divert_group *group = NULL;
- errno_t error = 0;
+ struct flow_divert_group *group = NULL;
+ errno_t error = 0;
if (unit >= GROUP_COUNT_MAX) {
return EINVAL;
if (g_flow_divert_groups == NULL || g_active_group_count == 0) {
panic("flow divert group %u is disconnecting, but no groups are active (groups = %p, active count = %u", unit,
- g_flow_divert_groups, g_active_group_count);
+ g_flow_divert_groups, g_active_group_count);
}
group = g_flow_divert_groups[unit];
static void
flow_divert_kctl_rcvd(kern_ctl_ref kctlref __unused, uint32_t unit __unused, void *unitinfo, int flags __unused)
{
- struct flow_divert_group *group = (struct flow_divert_group *)unitinfo;
+ struct flow_divert_group *group = (struct flow_divert_group *)unitinfo;
if (!OSTestAndClear(GROUP_BIT_CTL_ENQUEUE_BLOCKED, &group->atomic_bits)) {
- struct flow_divert_pcb *fd_cb;
- SLIST_HEAD(, flow_divert_pcb) tmp_list;
+ struct flow_divert_pcb *fd_cb;
+ SLIST_HEAD(, flow_divert_pcb) tmp_list;
lck_rw_lock_shared(&g_flow_divert_group_lck);
lck_rw_lock_exclusive(&group->lck);
static int
flow_divert_kctl_init(void)
{
- struct kern_ctl_reg ctl_reg;
- int result;
+ struct kern_ctl_reg ctl_reg;
+ int result;
memset(&ctl_reg, 0, sizeof(ctl_reg));
strlcpy(ctl_reg.ctl_name, FLOW_DIVERT_CONTROL_NAME, sizeof(ctl_reg.ctl_name));
- ctl_reg.ctl_name[sizeof(ctl_reg.ctl_name)-1] = '\0';
+ ctl_reg.ctl_name[sizeof(ctl_reg.ctl_name) - 1] = '\0';
ctl_reg.ctl_flags = CTL_FLAG_PRIVILEGED | CTL_FLAG_REG_EXTENDED;
ctl_reg.ctl_sendsize = FD_CTL_SENDBUFF_SIZE;
ctl_reg.ctl_recvsize = FD_CTL_RCVBUFF_SIZE;
g_flow_divert_in_udp_protosw.pr_ctloutput = flow_divert_ctloutput;
/*
- * Socket filters shouldn't attach/detach to/from this protosw
- * since pr_protosw is to be used instead, which points to the
- * real protocol; if they do, it is a bug and we should panic.
- */
+ * Socket filters shouldn't attach/detach to/from this protosw
+ * since pr_protosw is to be used instead, which points to the
+ * real protocol; if they do, it is a bug and we should panic.
+ */
g_flow_divert_in_udp_protosw.pr_filter_head.tqh_first =
(struct socket_filter *)(uintptr_t)0xdeadbeefdeadbeef;
g_flow_divert_in_udp_protosw.pr_filter_head.tqh_last =
g_flow_divert_in6_udp_protosw.pr_usrreqs = &g_flow_divert_in6_udp_usrreqs;
g_flow_divert_in6_udp_protosw.pr_ctloutput = flow_divert_ctloutput;
/*
- * Socket filters shouldn't attach/detach to/from this protosw
- * since pr_protosw is to be used instead, which points to the
- * real protocol; if they do, it is a bug and we should panic.
- */
+ * Socket filters shouldn't attach/detach to/from this protosw
+ * since pr_protosw is to be used instead, which points to the
+ * real protocol; if they do, it is a bug and we should panic.
+ */
g_flow_divert_in6_udp_protosw.pr_filter_head.tqh_first =
(struct socket_filter *)(uintptr_t)0xdeadbeefdeadbeef;
g_flow_divert_in6_udp_protosw.pr_filter_head.tqh_last =
(struct socket_filter **)(uintptr_t)0xdeadbeefdeadbeef;
-#endif /* INET6 */
+#endif /* INET6 */
flow_divert_grp_attr = lck_grp_attr_alloc_init();
if (flow_divert_grp_attr == NULL) {
projects / apple / xnu.git / blobdiff