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Merge pull request #268 from 1NCE-GmbH/master
Implement Extended Common Flags and Extended Common Flags II
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| // Copyright 2019-2024 go-gtp authors. All rights reserved. | ||
| // Use of this source code is governed by a MIT-style license that can be | ||
| // found in the LICENSE file. | ||
|
|
||
| package ie | ||
|
|
||
| import "io" | ||
|
|
||
| // NewExtendedCommonFlagsII creates a new ExtendedCommonFlagsII IE. | ||
| // | ||
| // Note: each flag should be set in 1 or 0. | ||
| func NewExtendedCommonFlagsII(pmtsmi, dtci, pnsi int) *IE { | ||
| return New( | ||
| ExtendedCommonFlagsII, | ||
| []byte{uint8( | ||
| pmtsmi<<2 | dtci<<1 | pnsi, | ||
| )}, | ||
| ) | ||
| } | ||
|
|
||
| // ExtendedCommonFlagsII returns ExtendedCommonFlagsII value if type matches. | ||
| func (i *IE) ExtendedCommonFlagsII() (uint8, error) { | ||
| if i.Type != ExtendedCommonFlagsII { | ||
| return 0, &InvalidTypeError{Type: i.Type} | ||
| } | ||
| if len(i.Payload) == 0 { | ||
| return 0, io.ErrUnexpectedEOF | ||
| } | ||
|
|
||
| return i.Payload[0], nil | ||
| } | ||
|
|
||
| // MustExtendedCommonFlagsII returns ExtendedCommonFlagsII in uint8 if type matches. | ||
| // This should only be used if it is assured to have the value. | ||
| func (i *IE) MustExtendedCommonFlagsII() uint8 { | ||
| v, _ := i.ExtendedCommonFlagsII() | ||
| return v | ||
| } | ||
|
|
||
| // IsPMTSMI checks if PMTSMI flag exists in ExtendedCommonFlagsII. | ||
| func (i *IE) IsPMTSMI() bool { | ||
| return ((i.MustExtendedCommonFlagsII() >> 2) & 0x01) != 0 | ||
| } | ||
|
|
||
| // IsDTCI checks if DTCI flag exists in ExtendedCommonFlagsII. | ||
| func (i *IE) IsDTCI() bool { | ||
| return ((i.MustExtendedCommonFlagsII() >> 1) & 0x01) != 0 | ||
| } | ||
|
|
||
| // IsPNSI checks if PNSI flag exists in ExtendedCommonFlagsII. | ||
| func (i *IE) IsPNSI() bool { | ||
| return (i.MustExtendedCommonFlagsII() & 0x01) != 0 | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| // Copyright 2019-2024 go-gtp authors. All rights reserved. | ||
| // Use of this source code is governed by a MIT-style license that can be | ||
| // found in the LICENSE file. | ||
|
|
||
| package ie | ||
|
|
||
| import "io" | ||
|
|
||
| // NewExtendedCommonFlags creates a new ExtendedCommonFlags IE. | ||
| // | ||
| // Note: each flag should be set in 1 or 0. | ||
| func NewExtendedCommonFlags(uasi, bdwi, pcri, vb, retloc, cpsr, ccrsi, unauthenticatedIMSI int) *IE { | ||
| return New( | ||
| ExtendedCommonFlags, | ||
| []byte{uint8( | ||
| uasi<<7 | bdwi<<6 | pcri<<5 | vb<<4 | retloc<<3 | cpsr<<2 | ccrsi<<1 | unauthenticatedIMSI, | ||
| )}, | ||
| ) | ||
| } | ||
|
|
||
| // ExtendedCommonFlags returns ExtendedCommonFlags value if type matches. | ||
| func (i *IE) ExtendedCommonFlags() (uint8, error) { | ||
| if i.Type != ExtendedCommonFlags { | ||
| return 0, &InvalidTypeError{Type: i.Type} | ||
| } | ||
| if len(i.Payload) == 0 { | ||
| return 0, io.ErrUnexpectedEOF | ||
| } | ||
|
|
||
| return i.Payload[0], nil | ||
| } | ||
|
|
||
| // MustExtendedCommonFlags returns ExtendedCommonFlags in uint8 if type matches. | ||
| // This should only be used if it is assured to have the value. | ||
| func (i *IE) MustExtendedCommonFlags() uint8 { | ||
| v, _ := i.ExtendedCommonFlags() | ||
| return v | ||
| } | ||
|
|
||
| // IsUASI checks if UASI flag exists in ExtendedCommonFlags. | ||
| func (i *IE) IsUASI() bool { | ||
| return ((i.MustExtendedCommonFlags() >> 7) & 0x01) != 0 | ||
| } | ||
|
|
||
| // IsBDWI checks if BDWI flag exists in ExtendedCommonFlags. | ||
| func (i *IE) IsBDWI() bool { | ||
| return ((i.MustExtendedCommonFlags() >> 6) & 0x01) != 0 | ||
| } | ||
|
|
||
| // IsPCRI checks if PCRI flag exists in ExtendedCommonFlags. | ||
| func (i *IE) IsPCRI() bool { | ||
| return ((i.MustExtendedCommonFlags() >> 5) & 0x01) != 0 | ||
| } | ||
|
|
||
| // IsVB checks if VB flag exists in ExtendedCommonFlags. | ||
| func (i *IE) IsVB() bool { | ||
| return ((i.MustExtendedCommonFlags() >> 4) & 0x01) != 0 | ||
| } | ||
|
|
||
| // IsRetLoc checks if RetLoc flag exists in ExtendedCommonFlags. | ||
| func (i *IE) IsRetLoc() bool { | ||
| return ((i.MustExtendedCommonFlags() >> 3) & 0x01) != 0 | ||
| } | ||
|
|
||
| // IsCPSR checks if CPSR flag exists in ExtendedCommonFlags. | ||
| func (i *IE) IsCPSR() bool { | ||
| return ((i.MustExtendedCommonFlags() >> 2) & 0x01) != 0 | ||
| } | ||
|
|
||
| // IsCCRSI checks if CCRSI flag exists in ExtendedCommonFlags. | ||
| func (i *IE) IsCCRSI() bool { | ||
| return ((i.MustExtendedCommonFlags() >> 1) & 0x01) != 0 | ||
| } | ||
|
|
||
| // IsUnauthenticatedIMSI checks if UnauthenticatedIMSI flag exists in ExtendedCommonFlags. | ||
| func (i *IE) IsUnauthenticatedIMSI() bool { | ||
| return (i.MustExtendedCommonFlags() & 0x01) != 0 | ||
| } |
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