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Start working on task #14780: Add debug helper asserts to ensure threading/locking requirements are met

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This commit is contained in:
Dirk Ziegelmeier 2018-01-02 13:44:38 +01:00
parent 36d160686a
commit b33b3bb8bb
7 changed files with 108 additions and 0 deletions
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2
src/api/tcpip.c
View File

@ -91,6 +91,8 @@ tcpip_thread(void *arg)
struct tcpip_msg *msg;
LWIP_UNUSED_ARG(arg);
LWIP_MARK_TCPIP_THREAD();
if (tcpip_init_done != NULL) {
tcpip_init_done(tcpip_init_done_arg);
}

2
src/core/ipv4/ip4.c
View File

@ -422,6 +422,8 @@ ip4_input(struct pbuf *p, struct netif *inp)
int check_ip_src = 1;
#endif /* IP_ACCEPT_LINK_LAYER_ADDRESSING || LWIP_IGMP */
LWIP_ASSERT_CORE_LOCKED();
IP_STATS_INC(ip.recv);
MIB2_STATS_INC(mib2.ipinreceives);

2
src/core/ipv6/ip6.c
View File

@ -515,6 +515,8 @@ ip6_input(struct pbuf *p, struct netif *inp)
int check_ip_src=1;
#endif /* IP_ACCEPT_LINK_LAYER_ADDRESSING */
LWIP_ASSERT_CORE_LOCKED();
IP6_STATS_INC(ip6.recv);
/* identify the IP header */

49
src/core/netif.c
View File

@ -210,6 +210,8 @@ netif_init(void)
err_t
netif_input(struct pbuf *p, struct netif *inp)
{
LWIP_ASSERT_CORE_LOCKED();
#if LWIP_ETHERNET
if (inp->flags & (NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET)) {
return ethernet_input(p, inp);
@ -272,6 +274,8 @@ netif_add(struct netif *netif,
s8_t i;
#endif
LWIP_ASSERT_CORE_LOCKED();
#if LWIP_SINGLE_NETIF
if (netif_default != NULL) {
LWIP_ASSERT("single netif already set", 0);
@ -441,6 +445,8 @@ netif_set_addr(struct netif *netif, const ip4_addr_t *ipaddr, const ip4_addr_t *
}
#endif
LWIP_ASSERT_CORE_LOCKED();
if (ip4_addr_isany(ipaddr)) {
/* when removing an address, we have to remove it *before* changing netmask/gw
to ensure that tcp RST segment can be sent correctly */
@ -475,6 +481,8 @@ netif_remove(struct netif *netif)
int i;
#endif
LWIP_ASSERT_CORE_LOCKED();
if (netif == NULL) {
return;
}
@ -575,6 +583,9 @@ void
netif_set_ipaddr(struct netif *netif, const ip4_addr_t *ipaddr)
{
ip_addr_t new_addr;
LWIP_ASSERT_CORE_LOCKED();
*ip_2_ip4(&new_addr) = (ipaddr ? *ipaddr : *IP4_ADDR_ANY4);
IP_SET_TYPE_VAL(new_addr, IPADDR_TYPE_V4);
@ -642,6 +653,8 @@ netif_set_gw(struct netif *netif, const ip4_addr_t *gw)
args.ipv4_gw_changed.old_address = &old_addr;
#endif
LWIP_ASSERT_CORE_LOCKED();
/* address is actually being changed? */
if (ip4_addr_cmp(safe_gw, netif_ip4_gw(netif)) == 0) {
ip4_addr_set(ip_2_ip4(&netif->gw), gw);
@ -678,6 +691,8 @@ netif_set_netmask(struct netif *netif, const ip4_addr_t *netmask)
args.ipv4_nm_changed.old_address = &old_addr;
#endif
LWIP_ASSERT_CORE_LOCKED();
/* address is actually being changed? */
if (ip4_addr_cmp(safe_netmask, netif_ip4_netmask(netif)) == 0) {
mib2_remove_route_ip4(0, netif);
@ -707,6 +722,8 @@ netif_set_netmask(struct netif *netif, const ip4_addr_t *netmask)
void
netif_set_default(struct netif *netif)
{
LWIP_ASSERT_CORE_LOCKED();
if (netif == NULL) {
/* remove default route */
mib2_remove_route_ip4(1, netif);
@ -727,6 +744,8 @@ netif_set_default(struct netif *netif)
void
netif_set_up(struct netif *netif)
{
LWIP_ASSERT_CORE_LOCKED();
if (!(netif->flags & NETIF_FLAG_UP)) {
netif_set_flags(netif, NETIF_FLAG_UP);
@ -751,6 +770,8 @@ netif_set_up(struct netif *netif)
static void
netif_issue_reports(struct netif *netif, u8_t report_type)
{
LWIP_ASSERT_CORE_LOCKED();
/* Only send reports when both link and admin states are up */
if (!(netif->flags & NETIF_FLAG_LINK_UP) ||
!(netif->flags & NETIF_FLAG_UP)) {
@ -797,6 +818,8 @@ netif_issue_reports(struct netif *netif, u8_t report_type)
void
netif_set_down(struct netif *netif)
{
LWIP_ASSERT_CORE_LOCKED();
if (netif->flags & NETIF_FLAG_UP) {
#if LWIP_NETIF_EXT_STATUS_CALLBACK
{
@ -831,6 +854,8 @@ netif_set_down(struct netif *netif)
void
netif_set_status_callback(struct netif *netif, netif_status_callback_fn status_callback)
{
LWIP_ASSERT_CORE_LOCKED();
if (netif) {
netif->status_callback = status_callback;
}
@ -858,6 +883,8 @@ netif_set_remove_callback(struct netif *netif, netif_status_callback_fn remove_c
void
netif_set_link_up(struct netif *netif)
{
LWIP_ASSERT_CORE_LOCKED();
if (!(netif->flags & NETIF_FLAG_LINK_UP)) {
netif_set_flags(netif, NETIF_FLAG_LINK_UP);
@ -889,6 +916,8 @@ netif_set_link_up(struct netif *netif)
void
netif_set_link_down(struct netif *netif )
{
LWIP_ASSERT_CORE_LOCKED();
if (netif->flags & NETIF_FLAG_LINK_UP) {
netif_clear_flags(netif, NETIF_FLAG_LINK_UP);
NETIF_LINK_CALLBACK(netif);
@ -910,6 +939,8 @@ netif_set_link_down(struct netif *netif )
void
netif_set_link_callback(struct netif *netif, netif_status_callback_fn link_callback)
{
LWIP_ASSERT_CORE_LOCKED();
if (netif) {
netif->link_callback = link_callback;
}
@ -1133,6 +1164,8 @@ netif_alloc_client_data_id(void)
u8_t result = netif_client_id;
netif_client_id++;
LWIP_ASSERT_CORE_LOCKED();
#if LWIP_NUM_NETIF_CLIENT_DATA > 256
#error LWIP_NUM_NETIF_CLIENT_DATA must be <= 256
#endif
@ -1156,6 +1189,9 @@ void
netif_ip6_addr_set(struct netif *netif, s8_t addr_idx, const ip6_addr_t *addr6)
{
LWIP_ASSERT("addr6 != NULL", addr6 != NULL);
LWIP_ASSERT_CORE_LOCKED();
netif_ip6_addr_set_parts(netif, addr_idx, addr6->addr[0], addr6->addr[1],
addr6->addr[2], addr6->addr[3]);
}
@ -1175,6 +1211,7 @@ netif_ip6_addr_set_parts(struct netif *netif, s8_t addr_idx, u32_t i0, u32_t i1,
{
ip_addr_t old_addr;
ip_addr_t new_ipaddr;
LWIP_ASSERT_CORE_LOCKED();
LWIP_ASSERT("netif != NULL", netif != NULL);
LWIP_ASSERT("invalid index", addr_idx < LWIP_IPV6_NUM_ADDRESSES);
@ -1238,6 +1275,7 @@ void
netif_ip6_addr_set_state(struct netif *netif, s8_t addr_idx, u8_t state)
{
u8_t old_state;
LWIP_ASSERT_CORE_LOCKED();
LWIP_ASSERT("netif != NULL", netif != NULL);
LWIP_ASSERT("invalid index", addr_idx < LWIP_IPV6_NUM_ADDRESSES);
@ -1317,6 +1355,8 @@ netif_get_ip6_addr_match(struct netif *netif, const ip6_addr_t *ip6addr)
{
s8_t i;
LWIP_ASSERT_CORE_LOCKED();
#if LWIP_IPV6_SCOPES
if (ip6_addr_has_zone(ip6addr) && !ip6_addr_test_zone(ip6addr, netif)) {
return -1; /* wrong zone, no match */
@ -1345,6 +1385,8 @@ netif_create_ip6_linklocal_address(struct netif *netif, u8_t from_mac_48bit)
{
u8_t i, addr_index;
LWIP_ASSERT_CORE_LOCKED();
/* Link-local prefix. */
ip_2_ip6(&netif->ip6_addr[0])->addr[0] = PP_HTONL(0xfe800000ul);
ip_2_ip6(&netif->ip6_addr[0])->addr[1] = 0;
@ -1409,6 +1451,8 @@ netif_add_ip6_address(struct netif *netif, const ip6_addr_t *ip6addr, s8_t *chos
{
s8_t i;
LWIP_ASSERT_CORE_LOCKED();
i = netif_get_ip6_addr_match(netif, ip6addr);
if (i >= 0) {
/* Address already added */
@ -1501,6 +1545,8 @@ netif_get_by_index(u8_t idx)
{
struct netif *netif;
LWIP_ASSERT_CORE_LOCKED();
if (idx != NETIF_NO_INDEX) {
NETIF_FOREACH(netif) {
if (idx == netif_get_index(netif)) {
@ -1525,6 +1571,8 @@ netif_find(const char *name)
struct netif *netif;
u8_t num;
LWIP_ASSERT_CORE_LOCKED();
if (name == NULL) {
return NULL;
}
@ -1552,6 +1600,7 @@ netif_find(const char *name)
*/
void netif_add_ext_callback(netif_ext_callback_t *callback, netif_ext_callback_fn fn)
{
LWIP_ASSERT_CORE_LOCKED();
LWIP_ASSERT("callback must be != NULL", callback != NULL);
LWIP_ASSERT("fn must be != NULL", fn != NULL);

11
src/core/timeouts.c
View File

@ -208,6 +208,8 @@ sys_timeout(u32_t msecs, sys_timeout_handler handler, void *arg)
struct sys_timeo *timeout, *t;
u32_t now, diff;
LWIP_ASSERT_CORE_LOCKED();
timeout = (struct sys_timeo *)memp_malloc(MEMP_SYS_TIMEOUT);
if (timeout == NULL) {
LWIP_ASSERT("sys_timeout: timeout != NULL, pool MEMP_SYS_TIMEOUT is empty", timeout != NULL);
@ -275,6 +277,8 @@ sys_untimeout(sys_timeout_handler handler, void *arg)
{
struct sys_timeo *prev_t, *t;
LWIP_ASSERT_CORE_LOCKED();
if (next_timeout == NULL) {
return;
}
@ -313,6 +317,8 @@ static
void
sys_check_timeouts(void)
{
LWIP_ASSERT_CORE_LOCKED();
if (next_timeout) {
struct sys_timeo *tmptimeout;
u32_t diff;
@ -369,6 +375,8 @@ sys_check_timeouts(void)
void
sys_restart_timeouts(void)
{
LWIP_ASSERT_CORE_LOCKED();
timeouts_last_time = sys_now();
}
@ -382,6 +390,9 @@ u32_t
sys_timeouts_sleeptime(void)
{
u32_t diff;
LWIP_ASSERT_CORE_LOCKED();
if (next_timeout == NULL) {
return 0xffffffff;
}

21
src/core/udp.c
View File

@ -198,6 +198,7 @@ udp_input(struct pbuf *p, struct netif *inp)
u8_t for_us = 0;
LWIP_UNUSED_ARG(inp);
LWIP_ASSERT_CORE_LOCKED();
PERF_START;
@ -680,6 +681,8 @@ udp_sendto_if_src_chksum(struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *d
u8_t ip_proto;
u8_t ttl;
LWIP_ASSERT_CORE_LOCKED();
if ((pcb == NULL) || (dst_ip == NULL) || !IP_ADDR_PCB_VERSION_MATCH(pcb, src_ip) ||
!IP_ADDR_PCB_VERSION_MATCH(pcb, dst_ip)) {
return ERR_VAL;
@ -893,6 +896,8 @@ udp_bind(struct udp_pcb *pcb, const ip_addr_t *ipaddr, u16_t port)
ip_addr_t zoned_ipaddr;
#endif /* LWIP_IPV6 && LWIP_IPV6_SCOPES */
LWIP_ASSERT_CORE_LOCKED();
#if LWIP_IPV4
/* Don't propagate NULL pointer (IPv4 ANY) to subsequent functions */
if (ipaddr == NULL) {
@ -995,6 +1000,8 @@ udp_bind(struct udp_pcb *pcb, const ip_addr_t *ipaddr, u16_t port)
void
udp_bind_netif(struct udp_pcb *pcb, const struct netif *netif)
{
LWIP_ASSERT_CORE_LOCKED();
if (netif != NULL) {
pcb->netif_idx = netif_get_index(netif);
} else {
@ -1024,6 +1031,8 @@ udp_connect(struct udp_pcb *pcb, const ip_addr_t *ipaddr, u16_t port)
{
struct udp_pcb *ipcb;
LWIP_ASSERT_CORE_LOCKED();
if ((pcb == NULL) || (ipaddr == NULL)) {
return ERR_VAL;
}
@ -1076,6 +1085,8 @@ udp_connect(struct udp_pcb *pcb, const ip_addr_t *ipaddr, u16_t port)
void
udp_disconnect(struct udp_pcb *pcb)
{
LWIP_ASSERT_CORE_LOCKED();
/* reset remote address association */
#if LWIP_IPV4 && LWIP_IPV6
if (IP_IS_ANY_TYPE_VAL(pcb->local_ip)) {
@ -1104,6 +1115,8 @@ udp_disconnect(struct udp_pcb *pcb)
void
udp_recv(struct udp_pcb *pcb, udp_recv_fn recv, void *recv_arg)
{
LWIP_ASSERT_CORE_LOCKED();
/* remember recv() callback and user data */
pcb->recv = recv;
pcb->recv_arg = recv_arg;
@ -1123,6 +1136,8 @@ udp_remove(struct udp_pcb *pcb)
{
struct udp_pcb *pcb2;
LWIP_ASSERT_CORE_LOCKED();
mib2_udp_unbind(pcb);
/* pcb to be removed is first in list? */
if (udp_pcbs == pcb) {
@ -1157,6 +1172,9 @@ struct udp_pcb *
udp_new(void)
{
struct udp_pcb *pcb;
LWIP_ASSERT_CORE_LOCKED();
pcb = (struct udp_pcb *)memp_malloc(MEMP_UDP_PCB);
/* could allocate UDP PCB? */
if (pcb != NULL) {
@ -1191,6 +1209,9 @@ struct udp_pcb *
udp_new_ip_type(u8_t type)
{
struct udp_pcb *pcb;
LWIP_ASSERT_CORE_LOCKED();
pcb = udp_new();
#if LWIP_IPV4 && LWIP_IPV6
if (pcb != NULL) {

21
src/include/lwip/opt.h
View File

@ -212,6 +212,27 @@
#if !defined SYS_LIGHTWEIGHT_PROT || defined __DOXYGEN__
#define SYS_LIGHTWEIGHT_PROT 1
#endif
/**
* LWIP_ASSERT_CORE_LOCKED: Macro to check whether lwIP's threading/locking
* requirements are satisfied during current function call.
* This macro usually calls a function that is implemented in the OS-dependent
* sys layer and performs the following checks:
* - Not in ISR
* - If LWIP_TCPIP_CORE_LOCKING=1: TCPIP core lock is held
* - If LWIP_TCPIP_CORE_LOCKING=0: function is called from TCPIP thread
*/
#if !defined LWIP_ASSERT_CORE_LOCKED || defined __DOXYGEN__
#define LWIP_ASSERT_CORE_LOCKED()
#endif
/**
* Called as first thing in the lwIP TCPIP thread. Can be used in conjunction
* with LWIP_ASSERT_CORE_LOCKED to check core locking.
*/
#if !defined LWIP_MARK_TCPIP_THREAD || defined __DOXYGEN__
#define LWIP_MARK_TCPIP_THREAD()
#endif
/**
* @}
*/