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Use memp pools for snmp instead of the heap; added 4 new pools.

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This commit is contained in:
goldsimon 2010-01-26 20:28:24 +00:00
parent a5463f0400
commit 606fed8896
6 changed files with 97 additions and 22 deletions
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3
CHANGELOG
View File

@ -19,6 +19,9 @@ HISTORY
++ New features:
2010-01-26: Simon Goldschmidt
* snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
2010-01-14: Simon Goldschmidt
* ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()

2
src/core/memp.c
View File

@ -54,6 +54,8 @@
#include "lwip/stats.h"
#include "netif/etharp.h"
#include "lwip/ip_frag.h"
#include "lwip/snmp_structs.h"
#include "lwip/snmp_msg.h"
#include <string.h>

10
src/core/snmp/mib_structs.c
View File

@ -37,7 +37,7 @@
#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */
#include "lwip/snmp_structs.h"
#include "lwip/mem.h"
#include "lwip/memp.h"
#include "lwip/netif.h"
/** .iso.org.dod.internet address prefix, @see snmp_iso_*() */
@ -169,7 +169,7 @@ snmp_mib_ln_alloc(s32_t id)
{
struct mib_list_node *ln;
ln = (struct mib_list_node *)mem_malloc(sizeof(struct mib_list_node));
ln = (struct mib_list_node *)memp_malloc(MEMP_SNMP_NODE);
if (ln != NULL)
{
ln->prev = NULL;
@ -183,7 +183,7 @@ snmp_mib_ln_alloc(s32_t id)
void
snmp_mib_ln_free(struct mib_list_node *ln)
{
mem_free(ln);
memp_free(MEMP_SNMP_NODE, ln);
}
struct mib_list_rootnode *
@ -191,7 +191,7 @@ snmp_mib_lrn_alloc(void)
{
struct mib_list_rootnode *lrn;
lrn = (struct mib_list_rootnode*)mem_malloc(sizeof(struct mib_list_rootnode));
lrn = (struct mib_list_rootnode*)memp_malloc(MEMP_SNMP_ROOTNODE);
if (lrn != NULL)
{
lrn->get_object_def = noleafs_get_object_def;
@ -210,7 +210,7 @@ snmp_mib_lrn_alloc(void)
void
snmp_mib_lrn_free(struct mib_list_rootnode *lrn)
{
mem_free(lrn);
memp_free(MEMP_SNMP_ROOTNODE, lrn);
}
/**

37
src/core/snmp/msg_in.c
View File

@ -41,7 +41,7 @@
#include "lwip/snmp_msg.h"
#include "lwip/snmp_structs.h"
#include "lwip/ip_addr.h"
#include "lwip/mem.h"
#include "lwip/memp.h"
#include "lwip/udp.h"
#include "lwip/stats.h"
@ -181,7 +181,7 @@ snmp_msg_get_event(u8_t request_id, struct snmp_msg_pstat *msg_ps)
en = msg_ps->ext_mib_node;
/* allocate output varbind */
vb = (struct snmp_varbind *)mem_malloc(sizeof(struct snmp_varbind));
vb = (struct snmp_varbind *)memp_malloc(MEMP_SNMP_VARBIND);
LWIP_ASSERT("vb != NULL",vb != NULL);
if (vb != NULL)
{
@ -200,7 +200,8 @@ snmp_msg_get_event(u8_t request_id, struct snmp_msg_pstat *msg_ps)
vb->value_len = (u8_t)msg_ps->ext_object_def.v_len;
if (vb->value_len > 0)
{
vb->value = mem_malloc(vb->value_len);
LWIP_ASSERT("SNMP_MAX_OCTET_STRING_LEN is configured too low", vb->value_len <= SNMP_MAX_VALUE_SIZE);
vb->value = memp_malloc(MEMP_SNMP_VALUE);
LWIP_ASSERT("vb->value != NULL",vb->value != NULL);
if (vb->value != NULL)
{
@ -216,7 +217,7 @@ snmp_msg_get_event(u8_t request_id, struct snmp_msg_pstat *msg_ps)
LWIP_DEBUGF(SNMP_MSG_DEBUG, ("snmp_msg_event: no variable space\n"));
msg_ps->vb_ptr->ident = vb->ident;
msg_ps->vb_ptr->ident_len = vb->ident_len;
mem_free(vb);
memp_free(MEMP_SNMP_VARBIND, vb);
snmp_error_response(msg_ps,SNMP_ES_TOOBIG);
}
}
@ -295,7 +296,7 @@ snmp_msg_get_event(u8_t request_id, struct snmp_msg_pstat *msg_ps)
msg_ps->state = SNMP_MSG_INTERNAL_GET_VALUE;
/* allocate output varbind */
vb = (struct snmp_varbind *)mem_malloc(sizeof(struct snmp_varbind));
vb = (struct snmp_varbind *)memp_malloc(MEMP_SNMP_VARBIND);
LWIP_ASSERT("vb != NULL",vb != NULL);
if (vb != NULL)
{
@ -314,7 +315,9 @@ snmp_msg_get_event(u8_t request_id, struct snmp_msg_pstat *msg_ps)
vb->value_len = (u8_t)object_def.v_len;
if (vb->value_len > 0)
{
vb->value = mem_malloc(vb->value_len);
LWIP_ASSERT("SNMP_MAX_OCTET_STRING_LEN is configured too low",
vb->value_len <= SNMP_MAX_VALUE_SIZE);
vb->value = memp_malloc(MEMP_SNMP_VALUE);
LWIP_ASSERT("vb->value != NULL",vb->value != NULL);
if (vb->value != NULL)
{
@ -328,7 +331,7 @@ snmp_msg_get_event(u8_t request_id, struct snmp_msg_pstat *msg_ps)
LWIP_DEBUGF(SNMP_MSG_DEBUG, ("snmp_msg_event: couldn't allocate variable space\n"));
msg_ps->vb_ptr->ident = vb->ident;
msg_ps->vb_ptr->ident_len = vb->ident_len;
mem_free(vb);
memp_free(MEMP_SNMP_VARBIND, vb);
snmp_error_response(msg_ps,SNMP_ES_TOOBIG);
}
}
@ -1339,7 +1342,7 @@ snmp_varbind_alloc(struct snmp_obj_id *oid, u8_t type, u8_t len)
{
struct snmp_varbind *vb;
vb = (struct snmp_varbind *)mem_malloc(sizeof(struct snmp_varbind));
vb = (struct snmp_varbind *)memp_malloc(MEMP_SNMP_VARBIND);
LWIP_ASSERT("vb != NULL",vb != NULL);
if (vb != NULL)
{
@ -1351,12 +1354,13 @@ snmp_varbind_alloc(struct snmp_obj_id *oid, u8_t type, u8_t len)
vb->ident_len = i;
if (i > 0)
{
LWIP_ASSERT("SNMP_MAX_TREE_DEPTH is configured too low", i <= SNMP_MAX_TREE_DEPTH);
/* allocate array of s32_t for our object identifier */
vb->ident = (s32_t*)mem_malloc(sizeof(s32_t) * i);
vb->ident = (s32_t*)memp_malloc(MEMP_SNMP_VALUE);
LWIP_ASSERT("vb->ident != NULL",vb->ident != NULL);
if (vb->ident == NULL)
{
mem_free(vb);
memp_free(MEMP_SNMP_VARBIND, vb);
return NULL;
}
while(i > 0)
@ -1374,16 +1378,17 @@ snmp_varbind_alloc(struct snmp_obj_id *oid, u8_t type, u8_t len)
vb->value_len = len;
if (len > 0)
{
LWIP_ASSERT("SNMP_MAX_OCTET_STRING_LEN is configured too low", vb->value_len <= SNMP_MAX_VALUE_SIZE);
/* allocate raw bytes for our object value */
vb->value = mem_malloc(len);
vb->value = memp_malloc(MEMP_SNMP_VALUE);
LWIP_ASSERT("vb->value != NULL",vb->value != NULL);
if (vb->value == NULL)
{
if (vb->ident != NULL)
{
mem_free(vb->ident);
memp_free(MEMP_SNMP_VALUE, vb->ident);
}
mem_free(vb);
memp_free(MEMP_SNMP_VARBIND, vb);
return NULL;
}
}
@ -1401,13 +1406,13 @@ snmp_varbind_free(struct snmp_varbind *vb)
{
if (vb->value != NULL )
{
mem_free(vb->value);
memp_free(MEMP_SNMP_VALUE, vb->value);
}
if (vb->ident != NULL )
{
mem_free(vb->ident);
memp_free(MEMP_SNMP_VALUE, vb->ident);
}
mem_free(vb);
memp_free(MEMP_SNMP_VARBIND, vb);
}
void

6
src/include/lwip/memp_std.h
View File

@ -68,6 +68,12 @@ LWIP_MEMPOOL(IGMP_GROUP, MEMP_NUM_IGMP_GROUP, sizeof(struct igmp_group)
LWIP_MEMPOOL(SYS_TIMEOUT, MEMP_NUM_SYS_TIMEOUT, sizeof(struct sys_timeo), "SYS_TIMEOUT")
#if LWIP_SNMP
LWIP_MEMPOOL(SNMP_ROOTNODE, MEMP_NUM_SNMP_ROOTNODE, sizeof(struct mib_list_rootnode), "SNMP_ROOTNODE")
LWIP_MEMPOOL(SNMP_NODE, MEMP_NUM_SNMP_NODE, sizeof(struct mib_list_node), "SNMP_NODE")
LWIP_MEMPOOL(SNMP_VARBIND, MEMP_NUM_SNMP_VARBIND, sizeof(struct snmp_varbind), "SNMP_VARBIND")
LWIP_MEMPOOL(SNMP_VALUE, MEMP_NUM_SNMP_VALUE, SNMP_MAX_VALUE_SIZE, "SNMP_VALUE")
#endif /* LWIP_SNMP */
/*
* A list of pools of pbuf's used by LWIP.

61
src/include/lwip/opt.h
View File

@ -329,6 +329,39 @@
#define MEMP_NUM_TCPIP_MSG_INPKT 8
#endif
/**
* MEMP_NUM_SNMP_NODE: the number of leafs in the SNMP tree.
*/
#ifndef MEMP_NUM_SNMP_NODE
#define MEMP_NUM_SNMP_NODE 50
#endif
/**
* MEMP_NUM_SNMP_ROOTNODE: the number of branches in the SNMP tree.
* Every branch has one leaf (MEMP_NUM_SNMP_NODE) at least!
*/
#ifndef MEMP_NUM_SNMP_ROOTNODE
#define MEMP_NUM_SNMP_ROOTNODE 30
#endif
/**
* MEMP_NUM_SNMP_VARBIND: the number of concurrent requests (does not have to
* be changed normally) - 2 of these are used per request (1 for input,
* 1 for output)
*/
#ifndef MEMP_NUM_SNMP_VARBIND
#define MEMP_NUM_SNMP_VARBIND 2
#endif
/**
* MEMP_NUM_SNMP_VALUE: the number of OID or values concurrently used
* (does not have to be changed normally) - 3 of these are used per request
* (1 for the value read and 2 for OIDs - input and output)
*/
#ifndef MEMP_NUM_SNMP_VALUE
#define MEMP_NUM_SNMP_VALUE 3
#endif
/**
* PBUF_POOL_SIZE: the number of buffers in the pbuf pool.
*/
@ -611,7 +644,8 @@
/**
* SNMP_CONCURRENT_REQUESTS: Number of concurrent requests the module will
* allow. At least one request buffer is required.
* allow. At least one request buffer is required.
* Does not have to be changed unless external MIBs answer request asynchronously
*/
#ifndef SNMP_CONCURRENT_REQUESTS
#define SNMP_CONCURRENT_REQUESTS 1
@ -643,6 +677,31 @@
#define SNMP_SAFE_REQUESTS 1
#endif
/**
* The maximum length of strings used. This affects the size of
* MEMP_SNMP_VALUE elements.
*/
#ifndef SNMP_MAX_OCTET_STRING_LEN
#define SNMP_MAX_OCTET_STRING_LEN 127
#endif
/**
* The maximum depth of the SNMP tree.
* With private MIBs enabled, this depends on your MIB!
* This affects the size of MEMP_SNMP_VALUE elements.
*/
#ifndef SNMP_MAX_TREE_DEPTH
#define SNMP_MAX_TREE_DEPTH 15
#endif
/**
* The size of the MEMP_SNMP_VALUE elements, normally calculated from
* SNMP_MAX_OCTET_STRING_LEN and SNMP_MAX_TREE_DEPTH.
*/
#ifndef SNMP_MAX_VALUE_SIZE
#define SNMP_MAX_VALUE_SIZE LWIP_MAX((SNMP_MAX_OCTET_STRING_LEN)+1, sizeof(s32_t)*(SNMP_MAX_TREE_DEPTH))
#endif
/*
----------------------------------
---------- IGMP options ----------