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|
/// Collects statistics about the SKS packet dump using the openpgp
/// crate, Sequoia's low-level API.
///
/// Note that to achieve reasonable performance, you need to compile
/// Sequoia and this program with optimizations:
///
/// % cargo run -p openpgp --example statistics --release
use std::env;
extern crate sequoia_openpgp as openpgp;
use openpgp::Packet;
use openpgp::constants::SignatureType;
use openpgp::packet::{BodyLength, Tag};
use openpgp::parse::{Parse, PacketParserResult, PacketParser};
fn main() {
let args: Vec<String> = env::args().collect();
if args.len() != 2 {
panic!("Collects statistics about OpenPGP packet dumps.\n\n\
Usage: {} <packet-dump>\n", args[0]);
}
// Global stats.
let mut packet_count = 0;
let mut packet_size = 0 as usize;
// Per-tag statistics.
let mut tags_count = vec![0; 64];
let mut tags_unknown = vec![0; 64];
let mut tags_size_bytes = vec![0 as usize; 64];
let mut tags_size_count = vec![0; 64];
let mut tags_size_min = vec![::std::u32::MAX; 64];
let mut tags_size_max = vec![0; 64];
let mut sigs_count = vec![0; 256];
// Per-TPK statistics.
let mut tpk_count = 0;
let mut tpk = PerTPK::min();
let mut tpk_min = PerTPK::max();
let mut tpk_max = PerTPK::min();
// Create a parser.
let mut ppr = PacketParser::from_file(&args[1])
.expect("Failed to create reader");
// Iterate over all packets.
while let PacketParserResult::Some(pp) = ppr {
// While the packet is in the parser, get some data for later.
let size = match pp.header().length {
BodyLength::Full(n) => Some(n),
_ => None,
};
// Get the packet and advance the parser.
let (packet, tmp) = pp.next().expect("Failed to get next packet");
ppr = tmp;
packet_count += 1;
if let Some(n) = size {
packet_size += n as usize;
}
let i = u8::from(packet.tag()) as usize;
tags_count[i] += 1;
match packet {
// If a new TPK starts, update TPK statistics.
Packet::PublicKey(_) | Packet::SecretKey(_) => {
if tpk_count > 0 {
tpk.update_min_max(&mut tpk_min, &mut tpk_max);
}
tpk_count += 1;
tpk = PerTPK::min();
},
Packet::Signature(ref sig) => {
sigs_count[u8::from(sig.sigtype()) as usize] += 1;
tpk.sigs[u8::from(sig.sigtype()) as usize] += 1;
},
_ => (),
}
if let Packet::Unknown(_) = packet {
tags_unknown[i] += 1;
} else {
// Only record size statistics of packets we successfully
// parsed.
if let Some(n) = size {
tags_size_bytes[i] += n as usize;
tags_size_count[i] += 1;
if n < tags_size_min[i] {
tags_size_min[i] = n;
}
if n > tags_size_max[i] {
tags_size_max[i] = n;
}
tpk.bytes += n as usize;
}
tpk.packets += 1;
tpk.tags[i] += 1;
}
}
tpk.update_min_max(&mut tpk_min, &mut tpk_max);
// Print statistics.
println!("# Packet statistics\n\n\
{:>22} {:>9} {:>9} {:>9} {:>9} {:>9}",
"", "count", "unknown",
"min size", "mean size", "max size");
println!("-------------------------------------------------------\
-----------------");
println!("{:>22}", "- Packets -");
for t in 0..64 {
let count = tags_count[t];
if count > 0 {
println!("{:>22} {:>9} {:>9} {:>9} {:>9} {:>9}",
format!("{:?}", Tag::from(t as u8)),
count,
tags_unknown[t],
tags_size_min[t],
tags_size_bytes[t] / tags_size_count[t],
tags_size_max[t]);
}
}
println!("\n{:>22}", "- Signatures -");
for t in 0..256 {
let max = tpk_max.sigs[t];
if max > 0 {
println!("{:>22} {:>9}",
format!("{:?}", SignatureType::from(t as u8)),
sigs_count[t]);
}
}
if tpk_count == 0 {
return;
}
println!();
println!("# TPK statistics\n\n\
{:>22} {:>9} {:>9} {:>9}",
"", "min", "mean", "max");
println!("----------------------------------------------------");
println!("{:>22} {:>9} {:>9} {:>9}",
"Size (packets)",
tpk_min.packets, packet_count / tpk_count, tpk_max.packets);
println!("{:>22} {:>9} {:>9} {:>9}",
"Size (bytes)",
tpk_min.bytes, packet_size / tpk_count, tpk_max.bytes);
println!("\n{:>22}", "- Packets -");
for t in 0..64 {
let max = tpk_max.tags[t];
if t as u8 != Tag::PublicKey.into() && max > 0 {
println!("{:>22} {:>9} {:>9} {:>9}",
format!("{:?}", Tag::from(t as u8)),
tpk_min.tags[t],
tags_count[t] / tpk_count,
max);
}
}
println!("\n{:>22}", "- Signatures -");
for t in 0..256 {
let max = tpk_max.sigs[t];
if max > 0 {
println!("{:>22} {:>9} {:>9} {:>9}",
format!("{:?}",
SignatureType::from(t as u8)),
tpk_min.sigs[t],
sigs_count[t] / tpk_count,
max);
}
}
}
struct PerTPK {
packets: usize,
bytes: usize,
tags: Vec<u32>,
sigs: Vec<u32>,
}
impl PerTPK {
fn min() -> Self {
PerTPK {
packets: 0,
bytes: 0,
|
