iptrie

Efficiently Store and Query ‘IPv4’ Internet Addresses with Associated Data

Description

Tries are great ways to store data that has obvious hierarchichal properties, such as ‘IPv4’ addresses. Methods are provided to create ‘IPv4’ tries and store, retrieve and delete ‘IPv4’ address keys with values. Functions are based on the ‘zmap’ ‘iptree’ ‘C’ library.

NOTE

This is an experiment that will not likely turn into a CRAN package or get migrated to either the iptools or asntools package.

I initially wanted to feel the pain (again) of using R’s own C interface (i.e. no Rcpp crutch) since it’s easy to forget just how handy Rcpp is. (It turns out that my ill memories of playing at the R C level are also unjustified).

This is orders of magnitude slower than the method used in astools::as_asntrie() for an astools::routeviews_latest() data set.

What’s Inside The Tin

The following functions are implemented:

• as_iptrie: Convert a data frame to an IP trie
• iptrie: Efficiently Store and Query ‘IPv4’ Internet Addresses with Associated Data
• iptrie_create: Create a new IPv4 Trie
• iptrie_destroy: Destroy an IP trie
• iptrie_insert: Insert a value for an IPv4 Address+CIDR combo into an IPv4 Trie
• iptrie_ip_in: Lookup a value for an IPv4 Address+CIDR combo into an IPv4 Trie or Test for Existence
• iptrie_lookup: Lookup a value for an IPv4 Address+CIDR combo into an IPv4 Trie or Test for Existence
• iptrie_remove: Remove a trie entry for an IPv4 Address+CIDR combo into an IPv4 Trie
• is_iptrie: Create a new IPv4 Trie ## Installation

devtools::install_git("https://sr.ht.com/~hrbrmstr/iptrie.git")
# or
devtools::install_git("https://gitlab.com/hrbrmstr/iptrie.git")
# or (if you must)
devtools::install_github("hrbrmstr/iptree")

Usage

library(iptrie)
library(tidyverse)

# current version
packageVersion("iptree")
## [1] '0.1.0'

Basic Usage

x <- iptrie_create()

iptrie_insert(x, "10.1.10.0/24", "HOME")

iptrie_ip_in(x,"10.1.10.1/32")
## [1] TRUE

iptrie_ip_in(x,"10.1.11.1/32")
## [1] FALSE

iptrie_lookup(x, "10.1.10.1/32")
## [1] "HOME"
## attr(,"ip")
## [1] "10.1.10.0"
## attr(,"ipn")
## [1] 167840256
## attr(,"mask")
## [1] 24

iptrie_lookup(x, "10.1.10.1/32", "exact")
## NULL

Data frame to iptrie

xdf <- data.frame(a = "10.1.10.0/24", b = "HOME", stringsAsFactors = FALSE)

(xt <- as_iptrie(xdf))
## <iptrie>

is_iptrie(xt)
## [1] TRUE

(xt <- as_iptrie(xdf, "a", "b"))
## <iptrie>

iptrie_ip_in(xt, "10.1.10.6")
## [1] TRUE

Bigger example (kinda what as.data.frame.iptrie does)

# Make a trie from autonomous system CIDRs
xdf <- astools::routeviews_latest()

cat(scales::comma(nrow(xdf)), "\n")
## 790,647

asntrie <- iptrie_create()

system.time(for (i in 1:nrow(xdf)) {
  iptrie_insert(asntrie, xdf[["cidr"]][i], xdf[["asn"]][i])
})
##    user  system elapsed 
##   8.835   0.178   9.114

# Get a block list (picked at ransom)
blklst <- url("https://iplists.firehol.org/files/botscout_1d.ipset")
y <- readLines(blklst)
close(blklst)

y <- y[!grepl("^#", y)] # comments at the top

cat(scales::comma(length(y)), "\n")
## 1,079

system.time(do.call(
  rbind.data.frame,
  lapply(y, function(.x) {
    r <- iptrie_lookup(asntrie, .x, "best")
    if (is.null(r)) {
      data.frame(
        ip = .x, 
        asn = NA_character_, 
        cidr = NA_character_,
        stringsAsFactors = FALSE
      )
    } else {
      data.frame(
        ip = .x, 
        asn = r, 
        cidr = sprintf("%s/%d", attr(r, "ip"), attr(r, "mask")),
        stringsAsFactors = FALSE
      )
    }
  })
) -> cdf)
##    user  system elapsed 
##   0.303   0.005   0.314

as_tibble(cdf)
## # A tibble: 1,079 x 3
##    ip            asn    cidr          
##    <chr>         <chr>  <chr>         
##  1 1.10.186.158  23969  1.10.186.0/24 
##  2 1.20.100.251  23969  1.20.100.0/24 
##  3 1.20.253.128  23969  1.20.253.0/24 
##  4 1.179.157.237 131293 1.179.157.0/24
##  5 1.179.198.37  131293 1.179.198.0/24
##  6 2.61.150.231  12389  2.61.0.0/16   
##  7 2.61.173.36   12389  2.61.0.0/16   
##  8 2.95.6.233    3216   2.95.6.0/24   
##  9 2.188.164.58  42337  2.188.164.0/22
## 10 5.8.37.214    50896  5.8.37.0/24   
## # … with 1,069 more rows

count(cdf, cidr, sort=TRUE)
## # A tibble: 786 x 2
##    cidr                 n
##    <chr>            <int>
##  1 185.220.101.0/24    19
##  2 5.188.210.0/24      11
##  3 51.15.0.0/17        10
##  4 183.198.0.0/16       8
##  5 199.249.230.0/24     8
##  6 172.68.244.0/22      7
##  7 173.44.224.0/22      7
##  8 31.184.238.0/24      7
##  9 192.42.116.0/22      6
## 10 104.223.0.0/17       5
## # … with 776 more rows

iptree Metrics

Lang	# Files	(%)	LoC	(%)	Blank lines	(%)	# Lines	(%)
C	3	0.23	346	0.65	37	0.32	7	0.03
R	8	0.62	103	0.19	25	0.22	165	0.66
Rmd	1	0.08	54	0.10	45	0.39	62	0.25
C/C++ Header	1	0.08	30	0.06	9	0.08	15	0.06

Code of Conduct

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.