NLSR

## Configuration File Format

NLSR is configured using an [INFO file](http://www.boost.org/doc/libs/1_42_0/doc/html/boost_propertytree/parsers.html#boost_propertytree.parsers.info_parser).

## Example configuration

    ; the general section contains all the general settings for router

    general

    {

    ; mandatory configuration command section network, site and router

        network /ndn                    ; name of the network the router belongs to in ndn URI format

        site /edu/memphis               ; name of the site the router belongs to in ndn URI format

        router /%C1.Router/cs/pollux    ; name of the network the router belongs to in ndn URI format

    ; lsa-refresh-time is the time in seconds, after which router will refresh its LSAs

        lsa-refresh-time 1800      ; default value 1800. Valid values 240-7200

    ; log-level is to set the levels of log for NLSR

        log-level  INFO            ; default value INFO, valid value DEBUG, INFO

    }

    ; the neighbors section contains the configuration for router's neighbors and hello's behavior

    neighbors

    {

    ; in case hello interest timed out, router will try 'hello-retries' times at 'hello-time-out' 

    ; seconds interval before giving up for any neighbors (deciding link is down)     

       hello-retries 3                     ; interest retries number in integer. Default value 3

                                           ; valid values 1-10

       hello-timeout 1                     ; interest time out value for hello interest. Default

                                           ; value 1, Valid values 1-15

       hello-interval  60                  ; hello interest sending interval in seconds. Default value 60

                                           ; valid values 30-90

    ; neighbor command is used to configure router's neighbor. Each neighbor will need

    ; one block of neighbor command

       neighbor

       {

           name /ndn/memphis.edu/cs/castor        ; name prefix of the neighbor router consists

                                                  ; of network, site-name and router-name

           face-uri  udp://castor.cs.memphis.edu  ; face Uri of the face connected to the neighbor

           link-cost 20                           ; cost of the connecting link to neighbor

       }

    }

    ; the hyperbolic section contains the configuration settings of enabling a router to calculate

    ; routing table using [hyperbolic routing table calculation](http://arxiv.org/abs/0805.1266) method

    hyperbolic

    {

    ; commands in this section follows a strict order

    ; the switch is used to set hyperbolic routing calculation in NLSR

        state off              ; default value 'off', set value 'on' to enable hyperbolic routing table 

                               ; calculation which turns link state routing 'off'. set value to 'dry-run"

                               ; to test hyperbolic routing and compare with link state routing.

        radius   123.456       ; radius of the router in hyperbolic coordinate system

        angle    1.45          ; angle of the router in hyperbolic coordinate system

    }

    ; the fib section is used to configure parameters related to FIB computation

    fib

    {

    ; the max-faces-per-prefix is used to limit the number of faces for each name prefix

    ; by NLSR in ndn FIB

        max-faces-per-prefix 3   ; default value 0. Valid value 0-60. By default (value 0) NLSR adds

                                 ; all available faces for each reachable name prefixes in NDN FIB

    }

    ; the advertising section contains the configuration settings of the name prefixes 

    ; hosted by this router

    advertising

    {

    ; to advertise name prefixes owned by or directly reachable by the router,

    ; configure one block of prefix configuration command for every name

        prefix /ndn/edu/memphis/cs/netlab           ; name in ndn URI format

        prefix /ndn/edu/memphis/sports/basketball 

    }

    security

    {

      validator

      {

        rule

        {

          id "NSLR Hello Rule"

          for data

          filter

          {

            type name

            regex ^[^<NLSR><INFO>]*<NLSR><INFO><><>$

          }

          checker

          {

            type customized

            sig-type rsa-sha256

            key-locator

            {

              type name

              hyper-relation

              {

                k-regex ^([^<KEY><NLSR>]*)<NLSR><KEY><ksk-.*><ID-CERT>$

                k-expand \\1

                h-relation equal

                p-regex ^([^<NLSR><INFO>]*)<NLSR><INFO><><>$

                p-expand \\1

              }

            }

          }

        }

        rule

        {

          id "NSLR LSA Rule"

          for data

          filter

          {

            type name

            regex ^[^<NLSR><LSA>]*<NLSR><LSA>

          }

          checker

          {

            type customized

            sig-type rsa-sha256

            key-locator

            {

              type name

              hyper-relation

              {

                k-regex ^([^<KEY><NLSR>]*)<NLSR><KEY><ksk-.*><ID-CERT>$

                k-expand \\1

                h-relation equal

                p-regex ^([^<NLSR><LSA>]*)<NLSR><LSA>(<>*)<><><>$

                p-expand \\1\\2

              }

            }

          }

        }

        rule

        {

          id "NSLR Hierarchy Exception Rule"

          for data

          filter

          {

            type name

            regex ^[^<KEY><%C1.Router>]*<%C1.Router>[^<KEY><NLSR>]*<KEY><ksk-.*><ID-CERT><>$

          }

          checker

          {

            type customized

            sig-type rsa-sha256

            key-locator

            {

              type name

              hyper-relation

              {

	         k-regex ^([^<KEY><%C1.Operator>]*)<%C1.Operator>[^<KEY>]*<KEY><ksk-.*><ID-CERT>$

                 k-expand \\1

                 h-relation equal

                 p-regex ^([^<KEY><%C1.Router>]*)<%C1.Router>[^<KEY>]*<KEY><ksk-.*><ID-CERT><>$

                 p-expand \\1

              }

            }

          }

        }

        rule

        {

          id "NSLR Hierarchical Rule"

          for data

          filter

          {

            type name

            regex ^[^<KEY>]*<KEY><ksk-.*><ID-CERT><>$

          }

          checker

          {

            type hierarchical

            sig-type rsa-sha256

          }

        }

        trust-anchor

        {

          type file

          file-name "root.cert"

        }

      }

      ; cert-to-publish "root.cert"  ; optional, a file containing the root certificate. only the router

                                     ; that is designated to publish root cert needs to specify this

      ; cert-to-publish "site.cert"  ; optional, a file containing the site certificate. only the router

                                     ; that is designated to publish site cert need to specify this

      ; cert-to-publish "operator.cert" ; optional, a file containing the operator certificate. only the

                                        ; router that is designated to publish operator cert need to

                                        ; specify this

      cert-to-publish "router.cert"  ; required, a file containing the router certificate.

    }