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SNMP: mib-2.system.sysObjectID is read-only, so make the object "static const" and modify just the pointer; snmp_get_sysobjid_ptr() and snmp_set_sysobjid() take a pointer to "const" object now

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Signed-off-by: Freddie Chopin <freddie.chopin@gmail.com>
This commit is contained in:
Freddie Chopin 2013-10-26 22:30:46 +02:00 committed by Simon Goldschmidt
parent 7a77917df6
commit 08b56e8180
2 changed files with 10 additions and 9 deletions
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15
src/core/snmp/mib2.c
View File

@ -765,7 +765,8 @@ const struct mib_array_node internet = {
#endif
/** mib-2.system.sysObjectID */
static struct snmp_obj_id sysobjid = {SNMP_SYSOBJID_LEN, SNMP_SYSOBJID};
static const struct snmp_obj_id sysobjid_default = {SNMP_SYSOBJID_LEN, SNMP_SYSOBJID};
static const struct snmp_obj_id* sysobjid_ptr = &sysobjid_default;
/** enterprise ID for generic TRAPs, .iso.org.dod.internet.mgmt.mib-2.snmp */
static struct snmp_obj_id snmpgrp_id = {7,{1,3,6,1,2,1,11}};
/** mib-2.system.sysServices */
@ -910,9 +911,9 @@ void snmp_set_sysdescr(const u8_t *str, const u8_t *len)
}
}
void snmp_get_sysobjid_ptr(struct snmp_obj_id **oid)
void snmp_get_sysobjid_ptr(const struct snmp_obj_id **oid)
{
*oid = &sysobjid;
*oid = sysobjid_ptr;
}
/**
@ -920,9 +921,9 @@ void snmp_get_sysobjid_ptr(struct snmp_obj_id **oid)
*
* @param oid points to stuct snmp_obj_id to copy
*/
void snmp_set_sysobjid(struct snmp_obj_id *oid)
void snmp_set_sysobjid(const struct snmp_obj_id *oid)
{
sysobjid = *oid;
sysobjid_ptr = oid;
}
/**
@ -2109,7 +2110,7 @@ system_get_object_def(u8_t ident_len, s32_t *ident, struct obj_def *od)
od->instance = MIB_OBJECT_SCALAR;
od->access = MIB_OBJECT_READ_ONLY;
od->asn_type = (SNMP_ASN1_UNIV | SNMP_ASN1_PRIMIT | SNMP_ASN1_OBJ_ID);
od->v_len = sysobjid.len * sizeof(s32_t);
od->v_len = sysobjid_ptr->len * sizeof(s32_t);
break;
case 3: /* sysUpTime */
od->instance = MIB_OBJECT_SCALAR;
@ -2175,7 +2176,7 @@ system_get_value(struct obj_def *od, u16_t len, void *value)
MEMCPY(value, sysdescr_ptr, len);
break;
case 2: /* sysObjectID */
MEMCPY(value, sysobjid.id, len);
MEMCPY(value, sysobjid_ptr->id, len);
break;
case 3: /* sysUpTime */
{

4
src/include/lwip/snmp.h
View File

@ -99,8 +99,8 @@ struct snmp_obj_id
/* system */
void snmp_set_sysdescr(const u8_t* str, const u8_t* len);
void snmp_set_sysobjid(struct snmp_obj_id *oid);
void snmp_get_sysobjid_ptr(struct snmp_obj_id **oid);
void snmp_set_sysobjid(const struct snmp_obj_id *oid);
void snmp_get_sysobjid_ptr(const struct snmp_obj_id **oid);
void snmp_inc_sysuptime(void);
void snmp_add_sysuptime(u32_t value);
void snmp_get_sysuptime(u32_t *value);