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Add additional SHA authentication algorithms #27

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Merged
merged 3 commits into from
Jan 15, 2024
Merged

Add additional SHA authentication algorithms #27

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5c8478e
"Unsort" includes so my IDE is happy"
RincewindsHat Jan 8, 2024
bc4a0a2
Implement all different SHA variants for authentication
RincewindsHat Jan 8, 2024
2b5351d
Document the additional SHA authentication algorithms
jwillikers Jan 14, 2024
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2 changes: 1 addition & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -59,7 +59,7 @@ make install
-s|--speed override speed detection with this value (bits per sec)
-x|--trim cut this number of characters from the start of interface descriptions
Useful for nortel switches
-j|--auth-proto SNMPv3 Auth Protocol (SHA|MD5)
-j|--auth-proto SNMPv3 Auth Protocol (SHA|SHA-224|SHA-256|SHA-384|SHA-512|MD5)
-J|--auth-phrase SNMPv3 Auth Phrase
-k|--priv-proto SNMPv3 Privacy Protocol (AES|DES) (optional)
-K|--priv-phrase SNMPv3 Privacy Phrase
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2 changes: 1 addition & 1 deletion check_interfaces.c
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Expand Up @@ -1477,7 +1477,7 @@ int usage(char *progname) {
printf("%s%s", i ? "," : "", modes[i]);
}
printf(")\n");
printf(" -j|--auth-proto\tSNMPv3 Auth Protocol (SHA|MD5)\n");
printf(" -j|--auth-proto\tSNMPv3 Auth Protocol (SHA|SHA-224|SHA-256|SHA-384|SHA-512|MD5)\n");
printf(" -J|--auth-phrase\tSNMPv3 Auth Phrase\n");
#ifdef usmDESPrivProtocol
printf(
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20 changes: 19 additions & 1 deletion snmp_bulkget.c
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Expand Up @@ -48,14 +48,16 @@
*
*/

#include <net-snmp/net-snmp-config.h>

/* asprintf and getopt_long */
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#include <net-snmp/library/transform_oids.h>
#endif
#include <stdio.h>

#include <limits.h>
#include <net-snmp/net-snmp-config.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
Expand Down Expand Up @@ -227,6 +229,22 @@ netsnmp_session *start_session_v3(netsnmp_session *session, char *user,
session->securityAuthProto = snmp_duplicate_objid(
usmHMACSHA1AuthProtocol, USM_AUTH_PROTO_SHA_LEN);
session->securityAuthProtoLen = USM_AUTH_PROTO_SHA_LEN;
} else if (!strcmp(auth_proto, "SHA-224")) {
session->securityAuthProto = snmp_duplicate_objid(
usmHMAC128SHA224AuthProtocol, USM_AUTH_PROTO_SHA_LEN);
session->securityAuthProtoLen = USM_AUTH_PROTO_SHA_LEN;
} else if (!strcmp(auth_proto, "SHA-256")) {
session->securityAuthProto = snmp_duplicate_objid(
usmHMAC192SHA256AuthProtocol, USM_AUTH_PROTO_SHA_LEN);
session->securityAuthProtoLen = USM_AUTH_PROTO_SHA_LEN;
} else if (!strcmp(auth_proto, "SHA-384")) {
session->securityAuthProto = snmp_duplicate_objid(
usmHMAC256SHA384AuthProtocol, USM_AUTH_PROTO_SHA_LEN);
session->securityAuthProtoLen = USM_AUTH_PROTO_SHA_LEN;
} else if (!strcmp(auth_proto, "SHA-512")) {
session->securityAuthProto = snmp_duplicate_objid(
usmHMAC384SHA512AuthProtocol, USM_AUTH_PROTO_SHA_LEN);
session->securityAuthProtoLen = USM_AUTH_PROTO_SHA_LEN;
} else if (!strcmp(auth_proto, "MD5")) {
session->securityAuthProto = snmp_duplicate_objid(
usmHMACMD5AuthProtocol, USM_AUTH_PROTO_MD5_LEN);
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