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https://github.com/lwip-tcpip/lwip.git
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SNMP: Move MIB2 system subtree to separate file to get snmp_mib2.c smaller
This commit is contained in:
Dirk Ziegelmeier
parent
377885581f
commit
cc477361ad
@ -130,6 +130,7 @@ SNMPFILES=$(LWIPDIR)/apps/snmp/snmp_asn1.c \
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$(LWIPDIR)/apps/snmp/snmp_mib2_icmp.c \
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$(LWIPDIR)/apps/snmp/snmp_mib2_interfaces.c \
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$(LWIPDIR)/apps/snmp/snmp_mib2_snmp.c \
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$(LWIPDIR)/apps/snmp/snmp_mib2_system.c \
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$(LWIPDIR)/apps/snmp/snmp_mib2_tcp.c \
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$(LWIPDIR)/apps/snmp/snmp_mib2_udp.c \
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$(LWIPDIR)/apps/snmp/snmp_msg.c \
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@ -245,32 +245,16 @@ static const struct snmp_node* const at_nodes[] = {
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static const struct snmp_tree_node at_root = SNMP_CREATE_TREE_NODE(3, at_nodes);
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#endif /* LWIP_ARP && LWIP_IPV4 */
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/* --- system .1.3.6.1.2.1.1 ----------------------------------------------------- */
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static u16_t system_get_value(const struct snmp_scalar_array_node_def *node, void *value);
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static snmp_err_t system_set_test(const struct snmp_scalar_array_node_def *node, u16_t len, void *value);
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static snmp_err_t system_set_value(const struct snmp_scalar_array_node_def *node, u16_t len, void *value);
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static const struct snmp_scalar_array_node_def system_nodes[] = {
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{1, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_ONLY}, /* sysDescr */
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{2, SNMP_ASN1_TYPE_OBJECT_ID, SNMP_NODE_INSTANCE_READ_ONLY}, /* sysObjectID */
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{3, SNMP_ASN1_TYPE_TIMETICKS, SNMP_NODE_INSTANCE_READ_ONLY}, /* sysUpTime */
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{4, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_WRITE}, /* sysContact */
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{5, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_WRITE}, /* sysName */
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{6, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_WRITE}, /* sysLocation */
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{7, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_ONLY} /* sysServices */
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};
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static const struct snmp_scalar_array_node system_node = SNMP_SCALAR_CREATE_ARRAY_NODE(1, system_nodes, system_get_value, system_set_test, system_set_value);
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/* --- mib-2 .1.3.6.1.2.1 ----------------------------------------------------- */
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extern const struct snmp_scalar_array_node snmp_mib2_snmp_root;
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extern const struct snmp_tree_node snmp_mib2_udp_root;
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extern const struct snmp_tree_node snmp_mib2_tcp_root;
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extern const struct snmp_scalar_array_node snmp_mib2_icmp_root;
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extern const struct snmp_tree_node snmp_mib2_interface_root;
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extern const struct snmp_scalar_array_node snmp_mib2_system_node;
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static const struct snmp_node* const mib2_nodes[] = {
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&system_node.node.node,
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&snmp_mib2_system_node.node.node,
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&snmp_mib2_interface_root.node,
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#if LWIP_ARP && LWIP_IPV4
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&at_root.node,
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@ -295,293 +279,6 @@ static const struct snmp_tree_node mib2_root = SNMP_CREATE_TREE_NODE(1, mib2_nod
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static const u32_t mib2_base_oid_arr[] = { 1,3,6,1,2,1 };
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const struct snmp_mib mib2 = SNMP_MIB_CREATE(mib2_base_oid_arr, &mib2_root.node);
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/** mib-2.system.sysDescr */
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static const u8_t sysdescr_default[] = SNMP_LWIP_MIB2_SYSDESC;
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static const u8_t* sysdescr = sysdescr_default;
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static const u16_t* sysdescr_len = NULL; /* use strlen for determining len */
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/** mib-2.system.sysContact */
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static const u8_t syscontact_default[] = SNMP_LWIP_MIB2_SYSCONTACT;
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static const u8_t* syscontact = syscontact_default;
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static const u16_t* syscontact_len = NULL; /* use strlen for determining len */
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static u8_t* syscontact_wr = NULL; /* if writable, points to the same buffer as syscontact (required for correct constness) */
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static u16_t* syscontact_wr_len = NULL; /* if writable, points to the same buffer as syscontact_len (required for correct constness) */
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static u16_t syscontact_bufsize = 0; /* 0=not writable */
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/** mib-2.system.sysName */
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static const u8_t sysname_default[] = SNMP_LWIP_MIB2_SYSNAME;
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static const u8_t* sysname = sysname_default;
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static const u16_t* sysname_len = NULL; /* use strlen for determining len */
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static u8_t* sysname_wr = NULL; /* if writable, points to the same buffer as sysname (required for correct constness) */
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static u16_t* sysname_wr_len = NULL; /* if writable, points to the same buffer as sysname_len (required for correct constness) */
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static u16_t sysname_bufsize = 0; /* 0=not writable */
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/** mib-2.system.sysLocation */
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static const u8_t syslocation_default[] = SNMP_LWIP_MIB2_SYSLOCATION;
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static const u8_t* syslocation = syslocation_default;
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static const u16_t* syslocation_len = NULL; /* use strlen for determining len */
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static u8_t* syslocation_wr = NULL; /* if writable, points to the same buffer as syslocation (required for correct constness) */
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static u16_t* syslocation_wr_len = NULL; /* if writable, points to the same buffer as syslocation_len (required for correct constness) */
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static u16_t syslocation_bufsize = 0; /* 0=not writable */
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/**
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* Initializes sysDescr pointers.
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*
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* @param str if non-NULL then copy str pointer
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* @param len points to string length, excluding zero terminator
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*/
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void snmp_mib2_set_sysdescr(const u8_t *str, const u16_t *len)
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{
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if (str != NULL) {
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sysdescr = str;
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sysdescr_len = len;
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}
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}
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/**
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* Initializes sysContact pointers,
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* e.g. ptrs to non-volatile memory external to lwIP.
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*
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* @param ocstr if non-NULL then copy str pointer
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* @param ocstrlen points to string length, excluding zero terminator.
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* if set to NULL it is assumed that ocstr is NULL-terminated.
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* @param bufsize size of the buffer in bytes.
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* (this is required because the buffer can be overwritten by snmp-set)
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* if ocstrlen is NULL buffer needs space for terminating 0 byte.
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* otherwise complete buffer is used for string.
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* if bufsize is set to 0, the value is regarded as read-only.
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*/
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void snmp_mib2_set_syscontact(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize)
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{
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if (ocstr != NULL) {
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syscontact = ocstr;
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syscontact_wr = ocstr;
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syscontact_len = ocstrlen;
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syscontact_wr_len = ocstrlen;
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syscontact_bufsize = bufsize;
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}
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}
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void snmp_mib2_set_syscontact_readonly(const u8_t *ocstr, const u16_t *ocstrlen)
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{
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if (ocstr != NULL) {
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syscontact = ocstr;
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syscontact_len = ocstrlen;
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syscontact_wr = NULL;
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syscontact_wr_len = NULL;
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syscontact_bufsize = 0;
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}
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}
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/**
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* Initializes sysName pointers,
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* e.g. ptrs to non-volatile memory external to lwIP.
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*
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* @param ocstr if non-NULL then copy str pointer
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* @param ocstrlen points to string length, excluding zero terminator.
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* if set to NULL it is assumed that ocstr is NULL-terminated.
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* @param bufsize size of the buffer in bytes.
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* (this is required because the buffer can be overwritten by snmp-set)
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* if ocstrlen is NULL buffer needs space for terminating 0 byte.
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* otherwise complete buffer is used for string.
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* if bufsize is set to 0, the value is regarded as read-only.
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*/
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void snmp_mib2_set_sysname(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize)
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{
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if (ocstr != NULL) {
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sysname = ocstr;
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sysname_wr = ocstr;
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sysname_len = ocstrlen;
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sysname_wr_len = ocstrlen;
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sysname_bufsize = bufsize;
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}
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}
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void snmp_mib2_set_sysname_readonly(const u8_t *ocstr, const u16_t *ocstrlen)
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{
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if (ocstr != NULL) {
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sysname = ocstr;
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sysname_len = ocstrlen;
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sysname_wr = NULL;
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sysname_wr_len = NULL;
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sysname_bufsize = 0;
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}
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}
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/**
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* Initializes sysLocation pointers,
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* e.g. ptrs to non-volatile memory external to lwIP.
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*
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* @param ocstr if non-NULL then copy str pointer
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* @param ocstrlen points to string length, excluding zero terminator.
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* if set to NULL it is assumed that ocstr is NULL-terminated.
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* @param bufsize size of the buffer in bytes.
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* (this is required because the buffer can be overwritten by snmp-set)
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* if ocstrlen is NULL buffer needs space for terminating 0 byte.
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* otherwise complete buffer is used for string.
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* if bufsize is set to 0, the value is regarded as read-only.
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*/
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void snmp_mib2_set_syslocation(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize)
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{
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if (ocstr != NULL) {
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syslocation = ocstr;
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syslocation_wr = ocstr;
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syslocation_len = ocstrlen;
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syslocation_wr_len = ocstrlen;
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syslocation_bufsize = bufsize;
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}
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}
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void snmp_mib2_set_syslocation_readonly(const u8_t *ocstr, const u16_t *ocstrlen)
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{
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if (ocstr != NULL) {
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syslocation = ocstr;
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syslocation_len = ocstrlen;
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syslocation_wr = NULL;
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syslocation_wr_len = NULL;
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syslocation_bufsize = 0;
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}
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}
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/* --- system .1.3.6.1.2.1.1 ----------------------------------------------------- */
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static u16_t
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system_get_value(const struct snmp_scalar_array_node_def *node, void *value)
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{
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const u8_t* var = NULL;
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const u16_t* var_len;
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u16_t result;
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switch (node->oid) {
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case 1: /* sysDescr */
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var = sysdescr;
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var_len = sysdescr_len;
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break;
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case 2: /* sysObjectID */
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{
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const struct snmp_obj_id* dev_enterprise_oid = snmp_get_device_enterprise_oid();
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MEMCPY(value, dev_enterprise_oid->id, dev_enterprise_oid->len * sizeof(u32_t));
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return dev_enterprise_oid->len * sizeof(u32_t);
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}
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case 3: /* sysUpTime */
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MIB2_COPY_SYSUPTIME_TO((u32_t*)value);
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return sizeof(u32_t);
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case 4: /* sysContact */
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var = syscontact;
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var_len = syscontact_len;
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break;
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case 5: /* sysName */
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var = sysname;
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var_len = sysname_len;
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break;
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case 6: /* sysLocation */
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var = syslocation;
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var_len = syslocation_len;
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break;
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case 7: /* sysServices */
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*(s32_t*)value = SNMP_SYSSERVICES;
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return sizeof(s32_t);
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default:
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LWIP_DEBUGF(SNMP_MIB_DEBUG,("system_get_value(): unknown id: %"S32_F"\n", node->oid));
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return 0;
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}
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/* handle string values (OID 1,4,5 and 6) */
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LWIP_ASSERT("", (value != NULL));
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if (var_len == NULL) {
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result = (u16_t)strlen((const char*)var);
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} else {
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result = *var_len;
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}
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MEMCPY(value, var, result);
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return result;
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}
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static snmp_err_t
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system_set_test(const struct snmp_scalar_array_node_def *node, u16_t len, void *value)
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{
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snmp_err_t ret = SNMP_ERR_WRONGVALUE;
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const u16_t* var_bufsize = NULL;
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const u16_t* var_wr_len;
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LWIP_UNUSED_ARG(value);
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switch (node->oid) {
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case 4: /* sysContact */
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var_bufsize = &syscontact_bufsize;
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var_wr_len = syscontact_wr_len;
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break;
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case 5: /* sysName */
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var_bufsize = &sysname_bufsize;
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var_wr_len = sysname_wr_len;
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break;
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case 6: /* sysLocation */
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var_bufsize = &syslocation_bufsize;
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var_wr_len = syslocation_wr_len;
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break;
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default:
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LWIP_DEBUGF(SNMP_MIB_DEBUG,("system_set_test(): unknown id: %"S32_F"\n", node->oid));
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return ret;
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}
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/* check if value is writable at all */
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if (*var_bufsize > 0) {
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if (var_wr_len == NULL) {
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/* we have to take the terminating 0 into account */
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if (len < *var_bufsize) {
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ret = SNMP_ERR_NOERROR;
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}
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} else {
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if (len <= *var_bufsize) {
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ret = SNMP_ERR_NOERROR;
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}
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}
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} else {
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ret = SNMP_ERR_NOTWRITABLE;
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}
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return ret;
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}
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static snmp_err_t
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system_set_value(const struct snmp_scalar_array_node_def *node, u16_t len, void *value)
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{
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u8_t* var_wr = NULL;
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u16_t* var_wr_len;
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switch (node->oid) {
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case 4: /* sysContact */
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var_wr = syscontact_wr;
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var_wr_len = syscontact_wr_len;
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break;
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case 5: /* sysName */
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var_wr = sysname_wr;
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var_wr_len = sysname_wr_len;
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break;
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case 6: /* sysLocation */
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var_wr = syslocation_wr;
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var_wr_len = syslocation_wr_len;
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break;
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default:
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LWIP_DEBUGF(SNMP_MIB_DEBUG,("system_set_value(): unknown id: %"S32_F"\n", node->oid));
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return SNMP_ERR_GENERROR;
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}
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/* no need to check size of target buffer, this was already done in set_test method */
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LWIP_ASSERT("", var_wr != NULL);
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MEMCPY(var_wr, value, len);
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if (var_wr_len == NULL) {
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/* add terminating 0 */
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var_wr[len] = 0;
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} else {
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*var_wr_len = len;
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}
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return SNMP_ERR_NOERROR;
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}
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#if LWIP_IPV4
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/* --- ip .1.3.6.1.2.1.4 ----------------------------------------------------- */
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@ -39,7 +39,7 @@
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#include "lwip/apps/snmp_mib2.h"
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#include "lwip/apps/snmp_table.h"
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#include "lwip/apps/snmp_scalar.h"
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#include "lwip/icmp.h"
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#include "lwip/netif.h"
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#include "lwip/stats.h"
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#if SNMP_USE_NETCONN
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357
src/apps/snmp/snmp_mib2_system.c
Normal file
357
src/apps/snmp/snmp_mib2_system.c
Normal file
@ -0,0 +1,357 @@
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/**
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* @file
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* Management Information Base II (RFC1213) objects and functions.
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*/
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/*
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* Copyright (c) 2006 Axon Digital Design B.V., The Netherlands.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* Author: Dirk Ziegelmeier <dziegel@gmx.de>
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* Christiaan Simons <christiaan.simons@axon.tv>
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*/
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#include "lwip/snmp.h"
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#include "lwip/apps/snmp.h"
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#include "lwip/apps/snmp_core.h"
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#include "lwip/apps/snmp_mib2.h"
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#include "lwip/apps/snmp_table.h"
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#include "lwip/apps/snmp_scalar.h"
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#if SNMP_USE_NETCONN
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#define SYNC_NODE_NAME(node_name) node_name ## _synced
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#define CREATE_LWIP_SYNC_NODE(oid, node_name) \
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static const struct snmp_threadsync_node node_name ## _synced = SNMP_CREATE_THREAD_SYNC_NODE(oid, &node_name.node, &snmp_mib2_lwip_locks);
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#else
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#define SYNC_NODE_NAME(node_name) node_name
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#define CREATE_LWIP_SYNC_NODE(oid, node_name)
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#endif
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||||
/* --- system .1.3.6.1.2.1.1 ----------------------------------------------------- */
|
||||
|
||||
/** mib-2.system.sysDescr */
|
||||
static const u8_t sysdescr_default[] = SNMP_LWIP_MIB2_SYSDESC;
|
||||
static const u8_t* sysdescr = sysdescr_default;
|
||||
static const u16_t* sysdescr_len = NULL; /* use strlen for determining len */
|
||||
|
||||
/** mib-2.system.sysContact */
|
||||
static const u8_t syscontact_default[] = SNMP_LWIP_MIB2_SYSCONTACT;
|
||||
static const u8_t* syscontact = syscontact_default;
|
||||
static const u16_t* syscontact_len = NULL; /* use strlen for determining len */
|
||||
static u8_t* syscontact_wr = NULL; /* if writable, points to the same buffer as syscontact (required for correct constness) */
|
||||
static u16_t* syscontact_wr_len = NULL; /* if writable, points to the same buffer as syscontact_len (required for correct constness) */
|
||||
static u16_t syscontact_bufsize = 0; /* 0=not writable */
|
||||
|
||||
/** mib-2.system.sysName */
|
||||
static const u8_t sysname_default[] = SNMP_LWIP_MIB2_SYSNAME;
|
||||
static const u8_t* sysname = sysname_default;
|
||||
static const u16_t* sysname_len = NULL; /* use strlen for determining len */
|
||||
static u8_t* sysname_wr = NULL; /* if writable, points to the same buffer as sysname (required for correct constness) */
|
||||
static u16_t* sysname_wr_len = NULL; /* if writable, points to the same buffer as sysname_len (required for correct constness) */
|
||||
static u16_t sysname_bufsize = 0; /* 0=not writable */
|
||||
|
||||
/** mib-2.system.sysLocation */
|
||||
static const u8_t syslocation_default[] = SNMP_LWIP_MIB2_SYSLOCATION;
|
||||
static const u8_t* syslocation = syslocation_default;
|
||||
static const u16_t* syslocation_len = NULL; /* use strlen for determining len */
|
||||
static u8_t* syslocation_wr = NULL; /* if writable, points to the same buffer as syslocation (required for correct constness) */
|
||||
static u16_t* syslocation_wr_len = NULL; /* if writable, points to the same buffer as syslocation_len (required for correct constness) */
|
||||
static u16_t syslocation_bufsize = 0; /* 0=not writable */
|
||||
|
||||
/**
|
||||
* Initializes sysDescr pointers.
|
||||
*
|
||||
* @param str if non-NULL then copy str pointer
|
||||
* @param len points to string length, excluding zero terminator
|
||||
*/
|
||||
void
|
||||
snmp_mib2_set_sysdescr(const u8_t *str, const u16_t *len)
|
||||
{
|
||||
if (str != NULL) {
|
||||
sysdescr = str;
|
||||
sysdescr_len = len;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Initializes sysContact pointers,
|
||||
* e.g. ptrs to non-volatile memory external to lwIP.
|
||||
*
|
||||
* @param ocstr if non-NULL then copy str pointer
|
||||
* @param ocstrlen points to string length, excluding zero terminator.
|
||||
* if set to NULL it is assumed that ocstr is NULL-terminated.
|
||||
* @param bufsize size of the buffer in bytes.
|
||||
* (this is required because the buffer can be overwritten by snmp-set)
|
||||
* if ocstrlen is NULL buffer needs space for terminating 0 byte.
|
||||
* otherwise complete buffer is used for string.
|
||||
* if bufsize is set to 0, the value is regarded as read-only.
|
||||
*/
|
||||
void
|
||||
snmp_mib2_set_syscontact(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize)
|
||||
{
|
||||
if (ocstr != NULL) {
|
||||
syscontact = ocstr;
|
||||
syscontact_wr = ocstr;
|
||||
syscontact_len = ocstrlen;
|
||||
syscontact_wr_len = ocstrlen;
|
||||
syscontact_bufsize = bufsize;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
snmp_mib2_set_syscontact_readonly(const u8_t *ocstr, const u16_t *ocstrlen)
|
||||
{
|
||||
if (ocstr != NULL) {
|
||||
syscontact = ocstr;
|
||||
syscontact_len = ocstrlen;
|
||||
syscontact_wr = NULL;
|
||||
syscontact_wr_len = NULL;
|
||||
syscontact_bufsize = 0;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Initializes sysName pointers,
|
||||
* e.g. ptrs to non-volatile memory external to lwIP.
|
||||
*
|
||||
* @param ocstr if non-NULL then copy str pointer
|
||||
* @param ocstrlen points to string length, excluding zero terminator.
|
||||
* if set to NULL it is assumed that ocstr is NULL-terminated.
|
||||
* @param bufsize size of the buffer in bytes.
|
||||
* (this is required because the buffer can be overwritten by snmp-set)
|
||||
* if ocstrlen is NULL buffer needs space for terminating 0 byte.
|
||||
* otherwise complete buffer is used for string.
|
||||
* if bufsize is set to 0, the value is regarded as read-only.
|
||||
*/
|
||||
void
|
||||
snmp_mib2_set_sysname(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize)
|
||||
{
|
||||
if (ocstr != NULL) {
|
||||
sysname = ocstr;
|
||||
sysname_wr = ocstr;
|
||||
sysname_len = ocstrlen;
|
||||
sysname_wr_len = ocstrlen;
|
||||
sysname_bufsize = bufsize;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
snmp_mib2_set_sysname_readonly(const u8_t *ocstr, const u16_t *ocstrlen)
|
||||
{
|
||||
if (ocstr != NULL) {
|
||||
sysname = ocstr;
|
||||
sysname_len = ocstrlen;
|
||||
sysname_wr = NULL;
|
||||
sysname_wr_len = NULL;
|
||||
sysname_bufsize = 0;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Initializes sysLocation pointers,
|
||||
* e.g. ptrs to non-volatile memory external to lwIP.
|
||||
*
|
||||
* @param ocstr if non-NULL then copy str pointer
|
||||
* @param ocstrlen points to string length, excluding zero terminator.
|
||||
* if set to NULL it is assumed that ocstr is NULL-terminated.
|
||||
* @param bufsize size of the buffer in bytes.
|
||||
* (this is required because the buffer can be overwritten by snmp-set)
|
||||
* if ocstrlen is NULL buffer needs space for terminating 0 byte.
|
||||
* otherwise complete buffer is used for string.
|
||||
* if bufsize is set to 0, the value is regarded as read-only.
|
||||
*/
|
||||
void
|
||||
snmp_mib2_set_syslocation(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize)
|
||||
{
|
||||
if (ocstr != NULL) {
|
||||
syslocation = ocstr;
|
||||
syslocation_wr = ocstr;
|
||||
syslocation_len = ocstrlen;
|
||||
syslocation_wr_len = ocstrlen;
|
||||
syslocation_bufsize = bufsize;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
snmp_mib2_set_syslocation_readonly(const u8_t *ocstr, const u16_t *ocstrlen)
|
||||
{
|
||||
if (ocstr != NULL) {
|
||||
syslocation = ocstr;
|
||||
syslocation_len = ocstrlen;
|
||||
syslocation_wr = NULL;
|
||||
syslocation_wr_len = NULL;
|
||||
syslocation_bufsize = 0;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static u16_t
|
||||
system_get_value(const struct snmp_scalar_array_node_def *node, void *value)
|
||||
{
|
||||
const u8_t* var = NULL;
|
||||
const u16_t* var_len;
|
||||
u16_t result;
|
||||
|
||||
switch (node->oid) {
|
||||
case 1: /* sysDescr */
|
||||
var = sysdescr;
|
||||
var_len = sysdescr_len;
|
||||
break;
|
||||
case 2: /* sysObjectID */
|
||||
{
|
||||
const struct snmp_obj_id* dev_enterprise_oid = snmp_get_device_enterprise_oid();
|
||||
MEMCPY(value, dev_enterprise_oid->id, dev_enterprise_oid->len * sizeof(u32_t));
|
||||
return dev_enterprise_oid->len * sizeof(u32_t);
|
||||
}
|
||||
case 3: /* sysUpTime */
|
||||
MIB2_COPY_SYSUPTIME_TO((u32_t*)value);
|
||||
return sizeof(u32_t);
|
||||
case 4: /* sysContact */
|
||||
var = syscontact;
|
||||
var_len = syscontact_len;
|
||||
break;
|
||||
case 5: /* sysName */
|
||||
var = sysname;
|
||||
var_len = sysname_len;
|
||||
break;
|
||||
case 6: /* sysLocation */
|
||||
var = syslocation;
|
||||
var_len = syslocation_len;
|
||||
break;
|
||||
case 7: /* sysServices */
|
||||
*(s32_t*)value = SNMP_SYSSERVICES;
|
||||
return sizeof(s32_t);
|
||||
default:
|
||||
LWIP_DEBUGF(SNMP_MIB_DEBUG,("system_get_value(): unknown id: %"S32_F"\n", node->oid));
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* handle string values (OID 1,4,5 and 6) */
|
||||
LWIP_ASSERT("", (value != NULL));
|
||||
if (var_len == NULL) {
|
||||
result = (u16_t)strlen((const char*)var);
|
||||
} else {
|
||||
result = *var_len;
|
||||
}
|
||||
MEMCPY(value, var, result);
|
||||
return result;
|
||||
}
|
||||
|
||||
static snmp_err_t
|
||||
system_set_test(const struct snmp_scalar_array_node_def *node, u16_t len, void *value)
|
||||
{
|
||||
snmp_err_t ret = SNMP_ERR_WRONGVALUE;
|
||||
const u16_t* var_bufsize = NULL;
|
||||
const u16_t* var_wr_len;
|
||||
|
||||
LWIP_UNUSED_ARG(value);
|
||||
|
||||
switch (node->oid) {
|
||||
case 4: /* sysContact */
|
||||
var_bufsize = &syscontact_bufsize;
|
||||
var_wr_len = syscontact_wr_len;
|
||||
break;
|
||||
case 5: /* sysName */
|
||||
var_bufsize = &sysname_bufsize;
|
||||
var_wr_len = sysname_wr_len;
|
||||
break;
|
||||
case 6: /* sysLocation */
|
||||
var_bufsize = &syslocation_bufsize;
|
||||
var_wr_len = syslocation_wr_len;
|
||||
break;
|
||||
default:
|
||||
LWIP_DEBUGF(SNMP_MIB_DEBUG,("system_set_test(): unknown id: %"S32_F"\n", node->oid));
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* check if value is writable at all */
|
||||
if (*var_bufsize > 0) {
|
||||
if (var_wr_len == NULL) {
|
||||
/* we have to take the terminating 0 into account */
|
||||
if (len < *var_bufsize) {
|
||||
ret = SNMP_ERR_NOERROR;
|
||||
}
|
||||
} else {
|
||||
if (len <= *var_bufsize) {
|
||||
ret = SNMP_ERR_NOERROR;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
ret = SNMP_ERR_NOTWRITABLE;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static snmp_err_t
|
||||
system_set_value(const struct snmp_scalar_array_node_def *node, u16_t len, void *value)
|
||||
{
|
||||
u8_t* var_wr = NULL;
|
||||
u16_t* var_wr_len;
|
||||
|
||||
switch (node->oid) {
|
||||
case 4: /* sysContact */
|
||||
var_wr = syscontact_wr;
|
||||
var_wr_len = syscontact_wr_len;
|
||||
break;
|
||||
case 5: /* sysName */
|
||||
var_wr = sysname_wr;
|
||||
var_wr_len = sysname_wr_len;
|
||||
break;
|
||||
case 6: /* sysLocation */
|
||||
var_wr = syslocation_wr;
|
||||
var_wr_len = syslocation_wr_len;
|
||||
break;
|
||||
default:
|
||||
LWIP_DEBUGF(SNMP_MIB_DEBUG,("system_set_value(): unknown id: %"S32_F"\n", node->oid));
|
||||
return SNMP_ERR_GENERROR;
|
||||
}
|
||||
|
||||
/* no need to check size of target buffer, this was already done in set_test method */
|
||||
LWIP_ASSERT("", var_wr != NULL);
|
||||
MEMCPY(var_wr, value, len);
|
||||
|
||||
if (var_wr_len == NULL) {
|
||||
/* add terminating 0 */
|
||||
var_wr[len] = 0;
|
||||
} else {
|
||||
*var_wr_len = len;
|
||||
}
|
||||
|
||||
return SNMP_ERR_NOERROR;
|
||||
}
|
||||
|
||||
static const struct snmp_scalar_array_node_def system_nodes[] = {
|
||||
{1, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_ONLY}, /* sysDescr */
|
||||
{2, SNMP_ASN1_TYPE_OBJECT_ID, SNMP_NODE_INSTANCE_READ_ONLY}, /* sysObjectID */
|
||||
{3, SNMP_ASN1_TYPE_TIMETICKS, SNMP_NODE_INSTANCE_READ_ONLY}, /* sysUpTime */
|
||||
{4, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_WRITE}, /* sysContact */
|
||||
{5, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_WRITE}, /* sysName */
|
||||
{6, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_NODE_INSTANCE_READ_WRITE}, /* sysLocation */
|
||||
{7, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_ONLY} /* sysServices */
|
||||
};
|
||||
|
||||
const struct snmp_scalar_array_node snmp_mib2_system_node = SNMP_SCALAR_CREATE_ARRAY_NODE(1, system_nodes, system_get_value, system_set_test, system_set_value);
|
||||
Loading…
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Reference in New Issue
Block a user