64 lines
2.4 KiB
Text
64 lines
2.4 KiB
Text
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NUTSCAN_SCAN_SNMP(3)
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====================
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NAME
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----
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nutscan_scan_snmp - Scan network for SNMP devices.
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SYNOPSIS
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--------
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#include <nut-scan.h>
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nutscan_device_t * nutscan_scan_snmp(const char * start_ip,const char * stop_ip,long timeout, nutscan_snmp_t * sec);
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DESCRIPTION
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-----------
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The *nutscan_scan_snmp()* function try to detect NUT compatible SNMP devices. It tries SNMP queries on every IP ranging from 'start_ip' to 'stop_ip'. Those IP may be either IPv4 or IPv6 addresses or host names.
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This function waits up to 'timeout' microseconds before considering an IP address does not respond to SNMP queries.
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A valid `nutscan_snmp_t` structure must be passed to this function.
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The `nutscan_snmp_t` structure contains the following members which must be filled as described below:
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char * 'community';
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char * 'secLevel';
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char * 'secName';
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char * 'authPassword';
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char * 'privPassword';
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char * 'authProtocol';
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char * 'privProtocol';
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If 'community' is not NULL, SNMP v1 request are sent using this 'community'.
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If 'community' is NULL and 'secLevel' is NULL, SNMP v1 is selected and 'community' is set to "public".
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In the other cases, SNMP v3 is used. 'secLevel' may be one of `SNMP_SEC_LEVEL_NOAUTH`, `SNMP_SEC_LEVEL_AUTHNOPRIV` or `SNMP_SEC_LEVEL_AUTHPRIV`. 'secName' is the security name and must be non NULL.
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If 'secLevel' is set to `SNMP_SEC_LEVEL_AUTHNOPRIV`, 'authPassword' must be non NULL.
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If 'secLevel' is set to `SNMP_SEC_LEVEL_AUTHPRIV`, 'authPassword' and 'privPassword' must be non NULL.
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If 'authProtocol' is NULL, MD5 protocol is used. Else you can set 'authProtocol' to either "MD5" or "SHA".
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If 'privProtocol' is NULL, DES protocol is used. Else you can set 'privProtocol' to either "AES" or "DES".
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'peername' and 'handle' are used internally and do not need any initialization.
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RETURN VALUE
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------------
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The *nutscan_scan_snmp()* function returns a pointer to a `nutscan_device_t` structure containing all found devices or NULL if an error occurs or no device is found.
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SEE ALSO
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--------
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linkman:nutscan_scan_usb[3], linkman:nutscan_scan_xml_http[3],
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linkman:nutscan_scan_nut[3], linkman:nutscan_scan_avahi[3],
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linkman:nutscan_scan_ipmi[3], linkman:nutscan_display_ups_conf[3],
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linkman:nutscan_display_parsable[3], linkman:nutscan_new_device[3],
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linkman:nutscan_free_device[3], linkman:nutscan_add_option_to_device[3],
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linkman:nutscan_add_device_to_device[3], linkman:nutscan_cidr_to_ip[3]
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