Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

12 files changed, 2232 insertions, 0 deletions

diff --git a/security/manager/ssl/builtins/Cargo.toml b/security/manager/ssl/builtins/Cargo.toml
new file mode 100644
index 0000000000..47e88b68a9
--- /dev/null
+++ b/security/manager/ssl/builtins/Cargo.toml
@@ -0,0 +1,17 @@
+[package]
+name = "builtins-static"
+version = "0.1.0"
+authors = ["John Schanck <jschanck@mozilla.com>"]
+edition = "2021"
+license = "MPL-2.0"
+
+[dependencies]
+pkcs11-bindings = "0.1.1"
+smallvec = { version = "1.9.0", features = ["const_new"] }
+
+[build-dependencies]
+bindgen = { default-features = false, features = ["runtime"], version = "0.63" }
+nom = "7.1.1"
+
+[lib]
+crate-type = ["staticlib"]
diff --git a/security/manager/ssl/builtins/build.rs b/security/manager/ssl/builtins/build.rs
new file mode 100644
index 0000000000..46dccc1853
--- /dev/null
+++ b/security/manager/ssl/builtins/build.rs
@@ -0,0 +1,495 @@
+/* -*- Mode: rust; rust-indent-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+extern crate bindgen;
+extern crate nom;
+
+use bindgen::callbacks::*;
+use bindgen::*;
+
+use nom::branch::alt;
+use nom::bytes::complete::{tag, take_until};
+use nom::character::complete::{
+    char, multispace0, newline, not_line_ending, one_of, space0, space1,
+};
+use nom::combinator::{fail, recognize};
+use nom::multi::{many1, separated_list0};
+use nom::sequence::{delimited, separated_pair, terminated, tuple};
+use nom::IResult;
+
+use std::collections::HashMap;
+use std::env;
+use std::fmt;
+use std::fs::File;
+use std::io::{BufWriter, Write};
+use std::path::PathBuf;
+
+fn octal_block_to_vec_u8(octal_block: &str) -> Vec<u8> {
+    octal_block
+        .lines()
+        .flat_map(|x| x.split('\\').skip(1))
+        .map(|x| u8::from_str_radix(x, 8).expect("octal value out of range."))
+        .collect()
+}
+
+fn octal_block_to_hex_string(octal: &str) -> String {
+    octal_block_to_vec_u8(octal)
+        .iter()
+        .map(|x| format!("0x{:02X}, ", x))
+        .collect()
+}
+
+// Wrapper around values parsed out of certdata.txt
+enum Ck<'a> {
+    Class(&'a str),
+    Comment(&'a str),
+    DistrustAfter(Option<&'a str>),
+    Empty,
+    MultilineOctal(&'a str),
+    OptionBool(&'a str),
+    Trust(&'a str),
+    Utf8(&'a str),
+}
+
+// Translation of parsed values into the output rust code
+impl fmt::Display for Ck<'_> {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        match self {
+            Ck::Class(s) => write!(f, "{s}_BYTES"),
+            Ck::Comment(s) => write!(f, "{}", s.replace('#', "//")),
+            Ck::DistrustAfter(None) => write!(f, "Some(CK_FALSE_BYTES)"),
+            Ck::DistrustAfter(Some(s)) => write!(f, "Some(&[{}])", octal_block_to_hex_string(s)),
+            Ck::Empty => write!(f, "None"),
+            Ck::MultilineOctal(s) => write!(f, "&[{}]", octal_block_to_hex_string(s)),
+            Ck::OptionBool(s) => write!(f, "Some({s}_BYTES)"),
+            Ck::Trust(s) => write!(f, "{s}_BYTES"),
+            Ck::Utf8(s) => write!(f, "\"{s}\\0\""),
+        }
+    }
+}
+
+impl PartialEq for Ck<'_> {
+    fn eq(&self, other: &Self) -> bool {
+        match (self, other) {
+            (Ck::Class(s), Ck::Class(t)) => s.eq(t),
+            (Ck::Comment(s), Ck::Comment(t)) => s.eq(t),
+            (Ck::DistrustAfter(None), Ck::DistrustAfter(None)) => true,
+            (Ck::DistrustAfter(Some(s)), Ck::DistrustAfter(Some(t))) => {
+                // compare the data rather than the presentation
+                let vec_s = octal_block_to_vec_u8(s);
+                let vec_t = octal_block_to_vec_u8(t);
+                vec_s.eq(&vec_t)
+            }
+            (Ck::Empty, Ck::Empty) => true,
+            (Ck::MultilineOctal(s), Ck::MultilineOctal(t)) => {
+                // compare the data rather than the presentation
+                let vec_s = octal_block_to_vec_u8(s);
+                let vec_t = octal_block_to_vec_u8(t);
+                vec_s.eq(&vec_t)
+            }
+            (Ck::Trust(s), Ck::Trust(t)) => s.eq(t),
+            (Ck::Utf8(s), Ck::Utf8(t)) => s.eq(t),
+            _ => false,
+        }
+    }
+}
+
+fn class(i: &str) -> IResult<&str, Ck> {
+    let (i, _) = tag("CK_OBJECT_CLASS")(i)?;
+    let (i, _) = space1(i)?;
+    let (i, class) = alt((
+        tag("CKO_NSS_BUILTIN_ROOT_LIST"),
+        tag("CKO_CERTIFICATE"),
+        tag("CKO_NSS_TRUST"),
+    ))(i)?;
+    let (i, _) = space0(i)?;
+    let (i, _) = newline(i)?;
+    Ok((i, Ck::Class(class)))
+}
+
+fn trust(i: &str) -> IResult<&str, Ck> {
+    let (i, _) = tag("CK_TRUST")(i)?;
+    let (i, _) = space1(i)?;
+    let (i, trust) = alt((
+        tag("CKT_NSS_TRUSTED_DELEGATOR"),
+        tag("CKT_NSS_MUST_VERIFY_TRUST"),
+        tag("CKT_NSS_NOT_TRUSTED"),
+    ))(i)?;
+    let (i, _) = space0(i)?;
+    let (i, _) = newline(i)?;
+    Ok((i, Ck::Trust(trust)))
+}
+
+// Parses a CK_BBOOL and wraps it with Ck::OptionBool so that it gets printed as
+// "Some(CK_TRUE_BYTES)" instead of "CK_TRUE_BYTES".
+fn option_bbool(i: &str) -> IResult<&str, Ck> {
+    let (i, _) = tag("CK_BBOOL")(i)?;
+    let (i, _) = space1(i)?;
+    let (i, b) = alt((tag("CK_TRUE"), tag("CK_FALSE")))(i)?;
+    let (i, _) = space0(i)?;
+    let (i, _) = newline(i)?;
+    Ok((i, Ck::OptionBool(b)))
+}
+
+fn bbool_true(i: &str) -> IResult<&str, Ck> {
+    let (i, _) = tag("CK_BBOOL")(i)?;
+    let (i, _) = space1(i)?;
+    let (i, _) = tag("CK_TRUE")(i)?;
+    let (i, _) = space0(i)?;
+    let (i, _) = newline(i)?;
+    Ok((i, Ck::Empty))
+}
+
+fn bbool_false(i: &str) -> IResult<&str, Ck> {
+    let (i, _) = tag("CK_BBOOL")(i)?;
+    let (i, _) = space1(i)?;
+    let (i, _) = tag("CK_FALSE")(i)?;
+    let (i, _) = space0(i)?;
+    let (i, _) = newline(i)?;
+    Ok((i, Ck::Empty))
+}
+
+fn utf8(i: &str) -> IResult<&str, Ck> {
+    let (i, _) = tag("UTF8")(i)?;
+    let (i, _) = space1(i)?;
+    let (i, _) = char('"')(i)?;
+    let (i, utf8) = take_until("\"")(i)?;
+    let (i, _) = char('"')(i)?;
+    let (i, _) = space0(i)?;
+    let (i, _) = newline(i)?;
+    Ok((i, Ck::Utf8(utf8)))
+}
+
+fn certificate_type(i: &str) -> IResult<&str, Ck> {
+    let (i, _) = tag("CK_CERTIFICATE_TYPE")(i)?;
+    let (i, _) = space1(i)?;
+    let (i, _) = tag("CKC_X_509")(i)?;
+    let (i, _) = space0(i)?;
+    let (i, _) = newline(i)?;
+    Ok((i, Ck::Empty))
+}
+
+// A CKA_NSS_{EMAIL,SERVER}_DISTRUST_AFTER line in certdata.txt is encoded either as a CK_BBOOL
+// with value CK_FALSE (when there is no distrust after date) or as a MULTILINE_OCTAL block.
+fn distrust_after(i: &str) -> IResult<&str, Ck> {
+    let (i, value) = alt((multiline_octal, bbool_false))(i)?;
+    match value {
+        Ck::Empty => Ok((i, Ck::DistrustAfter(None))),
+        Ck::MultilineOctal(data) => Ok((i, Ck::DistrustAfter(Some(data)))),
+        _ => unreachable!(),
+    }
+}
+
+fn octal_octet(i: &str) -> IResult<&str, &str> {
+    recognize(tuple((
+        tag("\\"),
+        one_of("0123"), // 255 = \377
+        one_of("01234567"),
+        one_of("01234567"),
+    )))(i)
+}
+
+fn multiline_octal(i: &str) -> IResult<&str, Ck> {
+    let (i, _) = tag("MULTILINE_OCTAL")(i)?;
+    let (i, _) = space0(i)?;
+    let (i, _) = newline(i)?;
+    let (i, lines) = recognize(many1(terminated(many1(octal_octet), newline)))(i)?;
+    let (i, _) = tag("END")(i)?;
+    let (i, _) = space0(i)?;
+    let (i, _) = newline(i)?;
+    return Ok((i, Ck::MultilineOctal(lines)));
+}
+
+fn distrust_comment(i: &str) -> IResult<&str, (&str, Ck)> {
+    let (i, comment) = recognize(delimited(
+        alt((
+            tag("# For Email Distrust After: "),
+            tag("# For Server Distrust After: "),
+        )),
+        not_line_ending,
+        newline,
+    ))(i)?;
+    Ok((i, ("DISTRUST_COMMENT", Ck::Comment(comment))))
+}
+
+fn comment(i: &str) -> IResult<&str, (&str, Ck)> {
+    let (i, comment) = recognize(many1(delimited(char('#'), not_line_ending, newline)))(i)?;
+    Ok((i, ("COMMENT", Ck::Comment(comment))))
+}
+
+fn certdata_line(i: &str) -> IResult<&str, (&str, Ck)> {
+    let (i, (attr, value)) = alt((
+        distrust_comment, // must be listed before `comment`
+        comment,
+        separated_pair(tag("CKA_CLASS"), space1, class),
+        separated_pair(tag("CKA_CERTIFICATE_TYPE"), space1, certificate_type),
+        separated_pair(alt((tag("CKA_ID"), tag("CKA_LABEL"))), space1, utf8),
+        separated_pair(
+            alt((
+                tag("CKA_ISSUER"),
+                tag("CKA_CERT_SHA1_HASH"),
+                tag("CKA_CERT_MD5_HASH"),
+                tag("CKA_SERIAL_NUMBER"),
+                tag("CKA_SUBJECT"),
+                tag("CKA_VALUE"),
+            )),
+            space1,
+            multiline_octal,
+        ),
+        separated_pair(
+            alt((
+                tag("CKA_NSS_SERVER_DISTRUST_AFTER"),
+                tag("CKA_NSS_EMAIL_DISTRUST_AFTER"),
+            )),
+            space1,
+            distrust_after,
+        ),
+        separated_pair(
+            alt((
+                tag("CKA_TRUST_EMAIL_PROTECTION"),
+                tag("CKA_TRUST_CODE_SIGNING"),
+                tag("CKA_TRUST_SERVER_AUTH"),
+            )),
+            space1,
+            trust,
+        ),
+        separated_pair(tag("CKA_NSS_MOZILLA_CA_POLICY"), space1, option_bbool),
+        separated_pair(tag("CKA_TOKEN"), space1, bbool_true),
+        separated_pair(
+            alt((
+                tag("CKA_TRUST_STEP_UP_APPROVED"),
+                tag("CKA_PRIVATE"),
+                tag("CKA_MODIFIABLE"),
+            )),
+            space1,
+            bbool_false,
+        ),
+    ))(i)?;
+    Ok((i, (attr, value)))
+}
+
+type Block<'a> = HashMap<&'a str, Ck<'a>>;
+
+fn attr<'a>(block: &'a Block, attr: &str) -> &'a Ck<'a> {
+    block.get(attr).unwrap_or(&Ck::Empty)
+}
+
+fn parse(i: &str) -> IResult<&str, Vec<Block>> {
+    let mut out: Vec<Block> = vec![];
+    let (i, _) = take_until("BEGINDATA\n")(i)?;
+    let (i, _) = tag("BEGINDATA\n")(i)?;
+    let (i, mut raw_blocks) = separated_list0(many1(char('\n')), many1(certdata_line))(i)?;
+    let (i, _) = multispace0(i)?; // allow trailing whitespace
+    if !i.is_empty() {
+        // The first line of i contains an error.
+        let (line, _) = i.split_once('\n').unwrap_or((i, ""));
+        fail::<_, &str, _>(line)?;
+    }
+    for raw_block in raw_blocks.drain(..) {
+        out.push(raw_block.into_iter().collect())
+    }
+    Ok((i, out))
+}
+
+#[derive(Debug)]
+struct PKCS11TypesParseCallbacks;
+
+impl ParseCallbacks for PKCS11TypesParseCallbacks {
+    fn int_macro(&self, _name: &str, _value: i64) -> Option<IntKind> {
+        Some(IntKind::U8)
+    }
+}
+
+// If we encounter a problem parsing certdata.txt we'll try to turn it into a compile time
+// error in builtins.rs. We need to output definitions for ROOT_LIST_LABEL and BUILTINS to
+// cut down on the number of errors the compiler produces.
+macro_rules! emit_build_error {
+    ($out:ident, $err:expr) => {
+        writeln!($out, "std::compile_error!(\"{}\");", $err)?;
+        writeln!($out, "pub static ROOT_LIST_LABEL: &[u8] = b\"\";")?;
+        writeln!($out, "pub static BUILTINS: &[Root] = &[];")?;
+    };
+}
+
+fn main() -> std::io::Result<()> {
+    println!("cargo:rerun-if-changed=../../../nss/lib/ckfw/builtins/certdata.txt");
+    println!("cargo:rerun-if-changed=../../../nss/lib/ckfw/builtins/nssckbi.h");
+
+    let bindings = Builder::default()
+        .header("../../../nss/lib/ckfw/builtins/nssckbi.h")
+        .allowlist_var("NSS_BUILTINS_CRYPTOKI_VERSION_MAJOR")
+        .allowlist_var("NSS_BUILTINS_CRYPTOKI_VERSION_MINOR")
+        .allowlist_var("NSS_BUILTINS_LIBRARY_VERSION_MAJOR")
+        .allowlist_var("NSS_BUILTINS_LIBRARY_VERSION_MINOR")
+        .allowlist_var("NSS_BUILTINS_HARDWARE_VERSION_MAJOR")
+        .allowlist_var("NSS_BUILTINS_HARDWARE_VERSION_MINOR")
+        .allowlist_var("NSS_BUILTINS_FIRMWARE_VERSION_MAJOR")
+        .allowlist_var("NSS_BUILTINS_FIRMWARE_VERSION_MINOR")
+        .parse_callbacks(Box::new(PKCS11TypesParseCallbacks))
+        .generate()
+        .expect("Unable to generate bindings.");
+
+    let out_path = PathBuf::from(env::var("OUT_DIR").expect("OUT_DIR should be set in env."));
+    bindings
+        .write_to_file(out_path.join("version.rs"))
+        .expect("Could not write version.rs.");
+
+    let mut out = BufWriter::new(
+        File::create(out_path.join("builtins.rs")).expect("Could not write builtins.rs."),
+    );
+
+    let input: &str = &std::fs::read_to_string("../../../nss/lib/ckfw/builtins/certdata.txt")
+        .expect("Unable to read certdata.txt.");
+
+    let blocks = match parse(input) {
+        Ok((_, blocks)) => blocks,
+        Err(e) => {
+            let input = match e {
+                nom::Err::Error(nom::error::Error { input, .. }) => input,
+                _ => "Unknown",
+            };
+            emit_build_error!(
+                out,
+                &format!(
+                    "Could not parse certdata.txt. Failed at: \'{}\'\");",
+                    input.escape_debug().to_string().escape_debug()
+                )
+            );
+            return Ok(());
+        }
+    };
+
+    let root_lists: Vec<&Block> = blocks
+        .iter()
+        .filter(|x| attr(x, "CKA_CLASS") == &Ck::Class("CKO_NSS_BUILTIN_ROOT_LIST"))
+        .collect();
+
+    if root_lists.len() != 1 {
+        emit_build_error!(
+            out,
+            "certdata.txt does not define a CKO_NSS_BUILTIN_ROOT_LIST object."
+        );
+        return Ok(());
+    }
+
+    let mut certs: Vec<&Block> = blocks
+        .iter()
+        .filter(|x| attr(x, "CKA_CLASS") == &Ck::Class("CKO_CERTIFICATE"))
+        .collect();
+
+    let trusts: Vec<&Block> = blocks
+        .iter()
+        .filter(|x| attr(x, "CKA_CLASS") == &Ck::Class("CKO_NSS_TRUST"))
+        .collect();
+
+    if certs.len() != trusts.len() {
+        emit_build_error!(
+            out,
+            "certdata.txt has a mismatched number of certificate and trust objects"
+        );
+        return Ok(());
+    }
+
+    // Ensure that every certificate has a CKA_SUBJECT attribute for the sort
+    for (i, cert) in certs.iter().enumerate() {
+        match cert.get("CKA_SUBJECT") {
+            Some(Ck::MultilineOctal(_)) => (),
+            _ => {
+                emit_build_error!(
+                    out,
+                    format!(
+                        "Certificate {} in certdata.txt has no CKA_SUBJECT attribute.",
+                        i
+                    )
+                );
+                return Ok(());
+            }
+        }
+    }
+
+    certs.sort_by_cached_key(|x| match x.get("CKA_SUBJECT") {
+        Some(Ck::MultilineOctal(data)) => octal_block_to_vec_u8(data),
+        _ => unreachable!(),
+    });
+
+    let root_list_label = attr(root_lists[0], "CKA_LABEL");
+    writeln!(
+        out,
+        "pub const ROOT_LIST_LABEL: &[u8] = b{root_list_label};"
+    )?;
+
+    // Output all of the certificates, so we can take take sub-slices for
+    // components of the Root structs later.
+    for (i, cert) in certs.iter().enumerate() {
+        let comment = match attr(cert, "COMMENT") {
+            Ck::Empty => &Ck::Comment(""),
+            comment => comment,
+        };
+        let der = attr(cert, "CKA_VALUE");
+        writeln!(out, "{comment}static ROOT_{i}: &[u8] = {der};")?;
+    }
+
+    writeln!(out, "pub static BUILTINS: &[Root] = &[")?;
+    for (i, cert) in certs.iter().enumerate() {
+        let subject = attr(cert, "CKA_SUBJECT");
+        let issuer = attr(cert, "CKA_ISSUER");
+        let label = attr(cert, "CKA_LABEL");
+        if !subject.eq(issuer) {
+            writeln!(out, "];")?; // end the definition of BUILTINS
+            let label = format!("{}", label);
+            writeln!(
+                out,
+                "std::compile_error!(\"Certificate with label {} is not self-signed\");",
+                label.escape_debug()
+            )?;
+            return Ok(());
+        }
+        let serial = attr(cert, "CKA_SERIAL_NUMBER");
+        let mozpol = attr(cert, "CKA_NSS_MOZILLA_CA_POLICY");
+        let server_distrust = attr(cert, "CKA_NSS_SERVER_DISTRUST_AFTER");
+        let email_distrust = attr(cert, "CKA_NSS_EMAIL_DISTRUST_AFTER");
+        let matching_trusts: Vec<&&Block> = trusts
+            .iter()
+            .filter(|trust| {
+                (attr(cert, "CKA_ISSUER") == attr(trust, "CKA_ISSUER"))
+                    && (attr(cert, "CKA_SERIAL_NUMBER") == attr(trust, "CKA_SERIAL_NUMBER"))
+            })
+            .collect();
+        if matching_trusts.len() != 1 {
+            writeln!(out, "];")?; // end the definition of BUILTINS
+            let label = format!("{}", label);
+            writeln!(out, "std::compile_error!(\"Could not find unique trust object for {} in certdata.txt\");", label.escape_debug())?;
+            return Ok(());
+        }
+        let trust = *matching_trusts[0];
+        let sha1 = attr(trust, "CKA_CERT_SHA1_HASH");
+        let md5 = attr(trust, "CKA_CERT_MD5_HASH");
+        let server = attr(trust, "CKA_TRUST_SERVER_AUTH");
+        let email = attr(trust, "CKA_TRUST_EMAIL_PROTECTION");
+
+        // TODO(Bug 1794045): We could make the library smaller by encoding der_name and der_serial
+        // as subslices of ROOT_i. Should be possible in rust 1.64 using slice::from_raw_parts.
+        writeln!(
+            out,
+            "        Root {{
+            label: {label},
+            der_name: {subject},
+            der_serial: {serial},
+            der_cert: ROOT_{i},
+            mozilla_ca_policy: {mozpol},
+            server_distrust_after: {server_distrust},
+            email_distrust_after: {email_distrust},
+            sha1: {sha1},
+            md5: {md5},
+            trust_server: {server},
+            trust_email: {email},
+        }},"
+        )?;
+    }
+    writeln!(out, "];")?;
+
+    let _ = out.flush();
+    Ok(())
+}
diff --git a/security/manager/ssl/builtins/dynamic-library/builtins.symbols b/security/manager/ssl/builtins/dynamic-library/builtins.symbols
new file mode 100644
index 0000000000..562ecea21d
--- /dev/null
+++ b/security/manager/ssl/builtins/dynamic-library/builtins.symbols
@@ -0,0 +1 @@
+C_GetFunctionList
diff --git a/security/manager/ssl/builtins/dynamic-library/moz.build b/security/manager/ssl/builtins/dynamic-library/moz.build
new file mode 100644
index 0000000000..7ba2701943
--- /dev/null
+++ b/security/manager/ssl/builtins/dynamic-library/moz.build
@@ -0,0 +1,37 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+USE_LIBS += ["builtins-static"]
+
+# see notes in ipcclientcerts/dynamic-library/moz.build
+
+if CONFIG["OS_ARCH"] == "Linux" and CONFIG["OS_TARGET"] != "Android":
+    SOURCES += [
+        "stub.cpp",
+    ]
+else:
+    SOURCES += [
+        "stub.c",
+    ]
+
+if CONFIG["OS_TARGET"] == "Android":
+    OS_LIBS += ["m"]
+
+if CONFIG["OS_ARCH"] == "WINNT":
+    OS_LIBS += [
+        "advapi32",
+        "userenv",
+        "ws2_32",
+    ]
+    OS_LIBS += [
+        "bcrypt",
+    ]
+
+
+SharedLibrary("nssckbi")
+
+NoVisibilityFlags()
+SYMBOLS_FILE = "builtins.symbols"
diff --git a/security/manager/ssl/builtins/dynamic-library/stub.c b/security/manager/ssl/builtins/dynamic-library/stub.c
new file mode 100644
index 0000000000..75139c48bf
--- /dev/null
+++ b/security/manager/ssl/builtins/dynamic-library/stub.c
@@ -0,0 +1,27 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "pkcs11.h"
+
+// see notes in ipcclientcerts/dynamic-library/stub.c
+
+CK_RV BUILTINSC_GetFunctionList(CK_FUNCTION_LIST_PTR_PTR ppFunctionList);
+
+CK_RV C_GetFunctionList(CK_FUNCTION_LIST_PTR_PTR ppFunctionList) {
+  return BUILTINSC_GetFunctionList(ppFunctionList);
+}
+
+#ifdef __MINGW32__
+#  include "mozilla/Assertions.h"
+void _Unwind_Resume() { MOZ_CRASH("Unexpected call to _Unwind_*"); }
+void _Unwind_GetDataRelBase() { _Unwind_Resume(); }
+void _Unwind_GetTextRelBase() { _Unwind_Resume(); }
+void _Unwind_GetLanguageSpecificData() { _Unwind_Resume(); }
+void _Unwind_GetIPInfo() { _Unwind_Resume(); }
+void _Unwind_GetRegionStart() { _Unwind_Resume(); }
+void _Unwind_SetGR() { _Unwind_Resume(); }
+void _Unwind_SetIP() { _Unwind_Resume(); }
+void _GCC_specific_handler() { _Unwind_Resume(); }
+#endif
diff --git a/security/manager/ssl/builtins/dynamic-library/stub.cpp b/security/manager/ssl/builtins/dynamic-library/stub.cpp
new file mode 100644
index 0000000000..414f5a68c1
--- /dev/null
+++ b/security/manager/ssl/builtins/dynamic-library/stub.cpp
@@ -0,0 +1,17 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "pkcs11.h"
+
+// see notes in ipcclientcerts/dynamic-library/stub.cpp
+
+extern "C" {
+
+CK_RV BUILTINSC_GetFunctionList(CK_FUNCTION_LIST_PTR_PTR ppFunctionList);
+
+CK_RV C_GetFunctionList(CK_FUNCTION_LIST_PTR_PTR ppFunctionList) {
+  return BUILTINSC_GetFunctionList(ppFunctionList);
+}
+}
diff --git a/security/manager/ssl/builtins/moz.build b/security/manager/ssl/builtins/moz.build
new file mode 100644
index 0000000000..f612798d79
--- /dev/null
+++ b/security/manager/ssl/builtins/moz.build
@@ -0,0 +1,9 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+DIRS += ["dynamic-library"]
+
+RustLibrary("builtins-static")
diff --git a/security/manager/ssl/builtins/src/certdata.rs b/security/manager/ssl/builtins/src/certdata.rs
new file mode 100644
index 0000000000..c5c587b131
--- /dev/null
+++ b/security/manager/ssl/builtins/src/certdata.rs
@@ -0,0 +1,43 @@
+/* -*- Mode: rust; rust-indent-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+use pkcs11_bindings::nss::*;
+use pkcs11_bindings::*;
+
+// We need to expand some PKCS#11 / NSS constants as byte arrays for pattern matching and
+// C_GetAttributeValue queries. We use native endianness, because PKCS#11 sits between an
+// application and a device driver that are running on the same machine.
+pub const CKC_X_509_BYTES: &[u8] = &CKC_X_509.to_ne_bytes();
+pub const CKO_CERTIFICATE_BYTES: &[u8] = &CKO_CERTIFICATE.to_ne_bytes();
+pub const CKO_NSS_BUILTIN_ROOT_LIST_BYTES: &[u8] = &CKO_NSS_BUILTIN_ROOT_LIST.to_ne_bytes();
+pub const CKO_NSS_TRUST_BYTES: &[u8] = &CKO_NSS_TRUST.to_ne_bytes();
+pub const CKT_NSS_MUST_VERIFY_TRUST_BYTES: &[u8] = &CKT_NSS_MUST_VERIFY_TRUST.to_ne_bytes();
+pub const CKT_NSS_NOT_TRUSTED_BYTES: &[u8] = &CKT_NSS_NOT_TRUSTED.to_ne_bytes();
+pub const CKT_NSS_TRUSTED_DELEGATOR_BYTES: &[u8] = &CKT_NSS_TRUSTED_DELEGATOR.to_ne_bytes();
+pub const CK_FALSE_BYTES: &[u8] = &CK_FALSE.to_ne_bytes();
+pub const CK_TRUE_BYTES: &[u8] = &CK_TRUE.to_ne_bytes();
+
+#[derive(PartialEq, Eq)]
+pub struct Root {
+    pub label: &'static str,
+    pub der_name: &'static [u8],
+    pub der_serial: &'static [u8],
+    pub der_cert: &'static [u8],
+    pub mozilla_ca_policy: Option<&'static [u8]>,
+    pub server_distrust_after: Option<&'static [u8]>,
+    pub email_distrust_after: Option<&'static [u8]>,
+    pub sha1: &'static [u8],
+    pub md5: &'static [u8],
+    pub trust_server: &'static [u8],
+    pub trust_email: &'static [u8],
+}
+
+impl PartialOrd for Root {
+    fn partial_cmp(&self, other: &Root) -> Option<std::cmp::Ordering> {
+        self.der_name.partial_cmp(other.der_name)
+    }
+}
+
+include!(concat!(env!("OUT_DIR"), "/builtins.rs"));
diff --git a/security/manager/ssl/builtins/src/internal.rs b/security/manager/ssl/builtins/src/internal.rs
new file mode 100644
index 0000000000..09de4e5b79
--- /dev/null
+++ b/security/manager/ssl/builtins/src/internal.rs
@@ -0,0 +1,344 @@
+/* -*- Mode: rust; rust-indent-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+use pkcs11_bindings::nss::*;
+use pkcs11_bindings::*;
+
+use smallvec::SmallVec;
+
+use crate::certdata::*;
+
+// The token stores 2N+1 objects: one NSS root list object, N certificate objects, and N trust
+// objects.
+//
+// Internally, the token identifies each object by its ObjectClass (RootList, Certificate,
+// or Trust) and its index in the list of objects of the same class.
+//
+// The PKCS#11 interface, on the other hand, identifies each object with a unique, non-zero,
+// unsigned long. This ulong is referred to as the object's CK_OBJECT_HANDLE.
+//
+// We're free to choose the mapping between ObjectHandles and CK_OBJECT_HANDLEs. Currently we
+// encode the ObjectClass in the low 2 bits of the CK_OBJECT_HANDLE and the index in the higher
+// bits. We use the values 1, 2, and 3 for ObjectClass to avoid using 0 as a CK_OBJECT_HANDLE.
+//
+#[derive(Clone, Copy)]
+pub enum ObjectClass {
+    RootList = 1,
+    Certificate = 2,
+    Trust = 3,
+}
+
+#[derive(Clone, Copy)]
+pub struct ObjectHandle {
+    class: ObjectClass,
+    index: usize,
+}
+
+impl TryFrom<CK_OBJECT_HANDLE> for ObjectHandle {
+    type Error = ();
+    fn try_from(handle: CK_OBJECT_HANDLE) -> Result<Self, Self::Error> {
+        if let Ok(handle) = usize::try_from(handle) {
+            let index = handle >> 2;
+            let class = match handle & 3 {
+                1 if index == 0 => ObjectClass::RootList,
+                2 if index < BUILTINS.len() => ObjectClass::Certificate,
+                3 if index < BUILTINS.len() => ObjectClass::Trust,
+                _ => return Err(()),
+            };
+            Ok(ObjectHandle { class, index })
+        } else {
+            Err(())
+        }
+    }
+}
+
+impl From<ObjectHandle> for CK_OBJECT_HANDLE {
+    fn from(object_handle: ObjectHandle) -> CK_OBJECT_HANDLE {
+        match CK_OBJECT_HANDLE::try_from(object_handle.index) {
+            Ok(index) => (index << 2) | (object_handle.class as CK_OBJECT_HANDLE),
+            Err(_) => 0,
+        }
+    }
+}
+
+pub fn get_attribute(attribute: CK_ATTRIBUTE_TYPE, object: &ObjectHandle) -> Option<&'static [u8]> {
+    match object.class {
+        ObjectClass::RootList => get_root_list_attribute(attribute),
+        ObjectClass::Certificate => get_cert_attribute(attribute, &BUILTINS[object.index]),
+        ObjectClass::Trust => get_trust_attribute(attribute, &BUILTINS[object.index]),
+    }
+}
+
+// Every attribute that appears in certdata.txt must have a corresponding match arm in one of the
+// get_*_attribute functions.
+//
+fn get_root_list_attribute(attribute: CK_ATTRIBUTE_TYPE) -> Option<&'static [u8]> {
+    match attribute {
+        CKA_CLASS => Some(CKO_NSS_BUILTIN_ROOT_LIST_BYTES),
+        CKA_TOKEN => Some(CK_TRUE_BYTES),
+        CKA_PRIVATE => Some(CK_FALSE_BYTES),
+        CKA_MODIFIABLE => Some(CK_FALSE_BYTES),
+        CKA_LABEL => Some(ROOT_LIST_LABEL),
+        _ => None,
+    }
+}
+
+fn get_cert_attribute(attribute: CK_ATTRIBUTE_TYPE, cert: &Root) -> Option<&'static [u8]> {
+    match attribute {
+        CKA_CLASS => Some(CKO_CERTIFICATE_BYTES),
+        CKA_TOKEN => Some(CK_TRUE_BYTES),
+        CKA_PRIVATE => Some(CK_FALSE_BYTES),
+        CKA_MODIFIABLE => Some(CK_FALSE_BYTES),
+        CKA_LABEL => Some(cert.label.as_bytes()),
+        CKA_CERTIFICATE_TYPE => Some(CKC_X_509_BYTES),
+        CKA_SUBJECT => Some(cert.der_name),
+        CKA_ID => Some(b"0\0"), // null terminated to match C implementation
+        CKA_ISSUER => Some(cert.der_name),
+        CKA_SERIAL_NUMBER => Some(cert.der_serial),
+        CKA_VALUE => Some(cert.der_cert),
+        CKA_NSS_MOZILLA_CA_POLICY => cert.mozilla_ca_policy,
+        CKA_NSS_SERVER_DISTRUST_AFTER => cert.server_distrust_after,
+        CKA_NSS_EMAIL_DISTRUST_AFTER => cert.email_distrust_after,
+        _ => None,
+    }
+}
+
+fn get_trust_attribute(attribute: CK_ATTRIBUTE_TYPE, cert: &Root) -> Option<&'static [u8]> {
+    match attribute {
+        CKA_CLASS => Some(CKO_NSS_TRUST_BYTES),
+        CKA_TOKEN => Some(CK_TRUE_BYTES),
+        CKA_PRIVATE => Some(CK_FALSE_BYTES),
+        CKA_MODIFIABLE => Some(CK_FALSE_BYTES),
+        CKA_LABEL => Some(cert.label.as_bytes()),
+        CKA_CERT_SHA1_HASH => Some(cert.sha1),
+        CKA_CERT_MD5_HASH => Some(cert.md5),
+        CKA_ISSUER => Some(cert.der_name),
+        CKA_SERIAL_NUMBER => Some(cert.der_serial),
+        CKA_TRUST_STEP_UP_APPROVED => Some(CK_FALSE_BYTES),
+        CKA_TRUST_SERVER_AUTH => Some(cert.trust_server),
+        CKA_TRUST_EMAIL_PROTECTION => Some(cert.trust_email),
+        CKA_TRUST_CODE_SIGNING => Some(CKT_NSS_MUST_VERIFY_TRUST_BYTES),
+        _ => None,
+    }
+}
+
+// A query matches an object if each term matches some attribute of the object. A search result is
+// a list of object handles. Typical queries yield zero or one results, so we optimize for this
+// case.
+//
+pub type Query<'a> = [(CK_ATTRIBUTE_TYPE, &'a [u8])];
+pub type SearchResult = SmallVec<[ObjectHandle; 1]>;
+
+pub fn search(query: &Query) -> SearchResult {
+    // The BUILTINS list is sorted by name. So if the query includes a CKA_SUBJECT or CKA_ISSUER
+    // field we can binary search.
+    for &(attr, value) in query {
+        if attr == CKA_SUBJECT || attr == CKA_ISSUER {
+            return search_by_name(value, query);
+        }
+    }
+
+    let mut results: SearchResult = SearchResult::default();
+
+    // A query with no name term might match the root list object
+    if match_root_list(query) {
+        results.push(ObjectHandle {
+            class: ObjectClass::RootList,
+            index: 0,
+        });
+    }
+
+    // A query with a CKA_CLASS term matches exactly one type of object, and we should avoid
+    // iterating over BUILTINS when CKO_CLASS is neither CKO_CERTIFICATE_BYTES nor
+    // CKO_NSS_TRUST_BYTES.
+    let mut maybe_cert = true;
+    let mut maybe_trust = true;
+    for &(attr, value) in query {
+        if attr == CKA_CLASS {
+            maybe_cert = value.eq(CKO_CERTIFICATE_BYTES);
+            maybe_trust = value.eq(CKO_NSS_TRUST_BYTES);
+            break;
+        }
+    }
+
+    if !(maybe_cert || maybe_trust) {
+        return results; // The root list or nothing.
+    }
+
+    for (index, builtin) in BUILTINS.iter().enumerate() {
+        if maybe_cert && match_cert(query, builtin) {
+            results.push(ObjectHandle {
+                class: ObjectClass::Certificate,
+                index,
+            });
+        }
+        if maybe_trust && match_trust(query, builtin) {
+            results.push(ObjectHandle {
+                class: ObjectClass::Trust,
+                index,
+            });
+        }
+    }
+    results
+}
+
+fn search_by_name(name: &[u8], query: &Query) -> SearchResult {
+    let mut results: SearchResult = SearchResult::default();
+
+    let index = match BUILTINS.binary_search_by_key(&name, |r| r.der_name) {
+        Ok(index) => index,
+        _ => return results,
+    };
+
+    // binary search returned a matching index, but maybe not the smallest
+    let mut min = index;
+    while min > 0 && name.eq(BUILTINS[min - 1].der_name) {
+        min -= 1;
+    }
+
+    // ... and maybe not the largest.
+    let mut max = index;
+    while max < BUILTINS.len() - 1 && name.eq(BUILTINS[max + 1].der_name) {
+        max += 1;
+    }
+
+    for (index, builtin) in BUILTINS.iter().enumerate().take(max + 1).skip(min) {
+        if match_cert(query, builtin) {
+            results.push(ObjectHandle {
+                class: ObjectClass::Certificate,
+                index,
+            });
+        }
+        if match_trust(query, builtin) {
+            results.push(ObjectHandle {
+                class: ObjectClass::Trust,
+                index,
+            });
+        }
+    }
+
+    results
+}
+
+fn match_root_list(query: &Query) -> bool {
+    for &(typ, x) in query {
+        match get_root_list_attribute(typ) {
+            Some(y) if x.eq(y) => (),
+            _ => return false,
+        }
+    }
+    true
+}
+
+fn match_cert(query: &Query, cert: &Root) -> bool {
+    for &(typ, x) in query {
+        match get_cert_attribute(typ, cert) {
+            Some(y) if x.eq(y) => (),
+            _ => return false,
+        }
+    }
+    true
+}
+
+fn match_trust(query: &Query, cert: &Root) -> bool {
+    for &(typ, x) in query {
+        match get_trust_attribute(typ, cert) {
+            Some(y) if x.eq(y) => (),
+            _ => return false,
+        }
+    }
+    true
+}
+
+#[cfg(test)]
+mod internal_tests {
+    use crate::certdata::BUILTINS;
+    use crate::internal::*;
+    use pkcs11_bindings::*;
+
+    // commented out to avoid vendoring x509_parser
+    // fn is_valid_utctime(utctime: &[u8]) -> bool {
+    //     /* TODO: actual validation */
+    //     utctime.len() == 13
+    // }
+    // #[test]
+    // fn test_certdata() {
+    //     for root in BUILTINS {
+    //         // the der_cert field is valid DER
+    //         let parsed_cert = X509Certificate::from_der(root.der_cert);
+    //         assert!(parsed_cert.is_ok());
+
+    //         // the der_cert field has no trailing data
+    //         let (trailing, parsed_cert) = parsed_cert.unwrap();
+    //         assert!(trailing.is_empty());
+
+    //         // the der_serial field matches the encoded serial
+    //         assert!(root.der_serial.len() > 2);
+    //         assert!(root.der_serial[0] == 0x02); // der integer
+    //         assert!(root.der_serial[1] <= 20); // no more than 20 bytes long
+    //         assert!(root.der_serial[1] as usize == root.der_serial.len() - 2);
+    //         assert!(parsed_cert.raw_serial().eq(&root.der_serial[2..]));
+
+    //         // the der_name field matches the encoded subject
+    //         assert!(parsed_cert.subject.as_raw().eq(root.der_name));
+
+    //         // the der_name field matches the encoded issuer
+    //         assert!(parsed_cert.issuer.as_raw().eq(root.der_name));
+
+    //         // The server_distrust_after field is None or a valid UTC time
+    //         if let Some(utctime) = root.server_distrust_after {
+    //             assert!(is_valid_utctime(&utctime));
+    //         }
+
+    //         // The email_distrust_after field is None or a valid UTC time
+    //         if let Some(utctime) = root.email_distrust_after {
+    //             assert!(is_valid_utctime(&utctime));
+    //         }
+
+    //         assert!(
+    //             root.trust_server == CKT_NSS_MUST_VERIFY_TRUST_BYTES
+    //                 || root.trust_server == CKT_NSS_TRUSTED_DELEGATOR_BYTES
+    //                 || root.trust_server == CKT_NSS_NOT_TRUSTED_BYTES
+    //         );
+    //         assert!(
+    //             root.trust_email == CKT_NSS_MUST_VERIFY_TRUST_BYTES
+    //                 || root.trust_email == CKT_NSS_TRUSTED_DELEGATOR_BYTES
+    //                 || root.trust_email == CKT_NSS_NOT_TRUSTED_BYTES
+    //         );
+    //     }
+    // }
+
+    #[test]
+    fn test_builtins_sorted() {
+        for i in 0..(BUILTINS.len() - 1) {
+            assert!(BUILTINS[i].der_name.le(BUILTINS[i + 1].der_name));
+        }
+    }
+
+    #[test]
+    fn test_search() {
+        // search for an element that will not be found
+        let result = search(&[(CKA_TOKEN, &[CK_FALSE])]);
+        assert_eq!(result.len(), 0);
+
+        // search for root list
+        let result = search(&[(CKA_CLASS, CKO_NSS_BUILTIN_ROOT_LIST_BYTES)]);
+        assert!(result.len() == 1);
+
+        // search by name
+        let result = search(&[
+            (CKA_CLASS, CKO_CERTIFICATE_BYTES),
+            (CKA_SUBJECT, BUILTINS[0].der_name),
+        ]);
+        assert!(result.len() >= 1);
+
+        // search by issuer and serial
+        let result = search(&[
+            (CKA_ISSUER, BUILTINS[0].der_name),
+            (CKA_SERIAL_NUMBER, BUILTINS[0].der_serial),
+        ]);
+        assert!(result.len() >= 1);
+    }
+}
diff --git a/security/manager/ssl/builtins/src/lib.rs b/security/manager/ssl/builtins/src/lib.rs
new file mode 100644
index 0000000000..17b05b454d
--- /dev/null
+++ b/security/manager/ssl/builtins/src/lib.rs
@@ -0,0 +1,9 @@
+/* -*- Mode: rust; rust-indent-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+mod certdata;
+mod internal;
+mod pkcs11;
+mod version;
diff --git a/security/manager/ssl/builtins/src/pkcs11.rs b/security/manager/ssl/builtins/src/pkcs11.rs
new file mode 100644
index 0000000000..56620f4a68
--- /dev/null
+++ b/security/manager/ssl/builtins/src/pkcs11.rs
@@ -0,0 +1,1227 @@
+/* -*- Mode: rust; rust-indent-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#![allow(non_snake_case)]
+
+use pkcs11_bindings::*;
+use std::slice;
+
+use std::collections::btree_map::Entry;
+use std::collections::{BTreeMap, BTreeSet};
+use std::sync::atomic::{AtomicU32, Ordering};
+use std::sync::{Mutex, MutexGuard};
+
+use crate::internal::{get_attribute, search};
+use crate::internal::{ObjectHandle, Query, SearchResult};
+
+use crate::version::*;
+
+const BUILTINS_VERSION: CK_VERSION = CK_VERSION {
+    major: NSS_BUILTINS_LIBRARY_VERSION_MAJOR,
+    minor: NSS_BUILTINS_LIBRARY_VERSION_MINOR,
+};
+
+const FIRMWARE_VERSION: CK_VERSION = CK_VERSION {
+    major: NSS_BUILTINS_FIRMWARE_VERSION_MAJOR,
+    minor: NSS_BUILTINS_FIRMWARE_VERSION_MINOR,
+};
+
+const CRYPTOKI_VERSION: CK_VERSION = CK_VERSION {
+    major: NSS_BUILTINS_CRYPTOKI_VERSION_MAJOR,
+    minor: NSS_BUILTINS_CRYPTOKI_VERSION_MINOR,
+};
+const HARDWARE_VERSION: CK_VERSION = CK_VERSION {
+    major: NSS_BUILTINS_HARDWARE_VERSION_MAJOR,
+    minor: NSS_BUILTINS_HARDWARE_VERSION_MINOR,
+};
+
+const MANUFACTURER_ID_BYTES: &[u8; 32] = b"Mozilla Foundation              ";
+const LIBRARY_DESCRIPTION_BYTES: &[u8; 32] = b"NSS Builtin Object Cryptoki Modu";
+
+const SLOT_COUNT: CK_ULONG = 1;
+const SLOT_ID_ROOTS: CK_SLOT_ID = 1;
+const SLOT_DESCRIPTION_ROOTS_BYTES: &[u8; 64] =
+    b"NSS Builtin Objects                                             ";
+
+const TOKEN_LABEL_ROOTS_BYTES: &[u8; 32] = b"Builtin Object Token            ";
+const TOKEN_MODEL_BYTES: &[u8; 16] = b"1               ";
+const TOKEN_SERIAL_NUMBER_BYTES: &[u8; 16] = b"1               ";
+const TOKEN_UTC_TIME: &[u8; 16] = b"                ";
+
+#[derive(Debug)]
+struct PK11Error(CK_RV);
+
+// The token assigns session handles using a counter. It would make sense to use a 64 bit counter,
+// as there would then be no risk of exhausting the session handle space. However,
+// CK_SESSION_HANDLE is defined as a C unsigned long, which is a u32 on some platforms.
+//
+// We start the counter at 1 since PKCS#11 reserves 0 to signal an invalid handle
+//
+type SessionHandle = u32;
+static NEXT_HANDLE: AtomicU32 = AtomicU32::new(1);
+
+// The token needs to keep track of which sessions are open.
+//
+type SessionSet = BTreeSet<SessionHandle>;
+static OPEN_SESSIONS: Mutex<Option<SessionSet>> = Mutex::new(None);
+
+// Helper functions for accessing OPEN_SESSIONS
+//
+type SessionSetGuard = MutexGuard<'static, Option<SessionSet>>;
+
+fn get_open_sessions_guard() -> Result<SessionSetGuard, PK11Error> {
+    OPEN_SESSIONS
+        .lock()
+        .map_err(|_| PK11Error(CKR_DEVICE_ERROR))
+}
+
+fn get_open_sessions(guard: &mut SessionSetGuard) -> Result<&mut SessionSet, PK11Error> {
+    let sessions = guard
+        .as_mut()
+        .ok_or(PK11Error(CKR_CRYPTOKI_NOT_INITIALIZED))?;
+    Ok(sessions)
+}
+
+// The token needs to cache search results until the client reads them or closes the session.
+//
+type SearchCache = BTreeMap<SessionHandle, SearchResult>;
+static SEARCHES: Mutex<Option<SearchCache>> = Mutex::new(None);
+
+// Helper functions for accessing SEARCHES
+//
+type SearchCacheGuard = MutexGuard<'static, Option<SearchCache>>;
+
+fn get_search_cache_guard() -> Result<SearchCacheGuard, PK11Error> {
+    SEARCHES.lock().map_err(|_| PK11Error(CKR_DEVICE_ERROR))
+}
+
+fn get_search_cache(guard: &mut SearchCacheGuard) -> Result<&mut SearchCache, PK11Error> {
+    let searches = guard
+        .as_mut()
+        .ok_or(PK11Error(CKR_CRYPTOKI_NOT_INITIALIZED))?;
+    Ok(searches)
+}
+
+fn validate_session(handle: SessionHandle) -> Result<(), PK11Error> {
+    let mut guard = get_open_sessions_guard()?;
+    let sessions = get_open_sessions(&mut guard)?;
+    if sessions.contains(&handle) {
+        return Ok(());
+    }
+    if handle < NEXT_HANDLE.load(Ordering::SeqCst) {
+        Err(PK11Error(CKR_SESSION_CLOSED))
+    } else {
+        // Possible that NEXT_HANDLE wrapped and we should return CKR_SESSION_CLOSED.
+        // But this is best-effort.
+        Err(PK11Error(CKR_SESSION_HANDLE_INVALID))
+    }
+}
+
+// The internal implementation of C_Initialize
+fn initialize() -> Result<(), PK11Error> {
+    {
+        let mut search_cache_guard = get_search_cache_guard()?;
+        if (*search_cache_guard).is_some() {
+            return Err(PK11Error(CKR_CRYPTOKI_ALREADY_INITIALIZED));
+        }
+        *search_cache_guard = Some(SearchCache::default());
+    }
+
+    {
+        let mut session_guard = get_open_sessions_guard()?;
+        if (*session_guard).is_some() {
+            return Err(PK11Error(CKR_CRYPTOKI_ALREADY_INITIALIZED));
+        }
+        *session_guard = Some(SessionSet::default());
+    }
+
+    Ok(())
+}
+
+// The internal implementation of C_Finalize
+fn finalize() -> Result<(), PK11Error> {
+    {
+        let mut guard = get_search_cache_guard()?;
+        // Try to access the search cache to ensure we're initialized.
+        // Returns CKR_CRYPTOKI_NOT_INITIALIZED if we're not.
+        let _ = get_search_cache(&mut guard)?;
+        *guard = None;
+    }
+
+    let mut guard = get_open_sessions_guard()?;
+    let _ = get_open_sessions(&mut guard)?;
+    *guard = None;
+
+    Ok(())
+}
+
+// Internal implementation of C_OpenSession
+fn open_session() -> Result<SessionHandle, PK11Error> {
+    let mut handle = NEXT_HANDLE.fetch_add(1, Ordering::SeqCst);
+    if handle == 0 {
+        // skip handle 0 if the addition wraps
+        handle = NEXT_HANDLE.fetch_add(1, Ordering::SeqCst);
+    }
+
+    let mut guard = get_open_sessions_guard()?;
+    let sessions = get_open_sessions(&mut guard)?;
+    while !sessions.insert(handle) {
+        // this only executes if NEXT_HANDLE wraps while sessions with
+        // small handles are still open.
+        handle = NEXT_HANDLE.fetch_add(1, Ordering::SeqCst);
+    }
+
+    Ok(handle)
+}
+
+// Internal implementation of C_CloseSession
+fn close_session(session: SessionHandle) -> Result<(), PK11Error> {
+    {
+        let mut guard = get_search_cache_guard()?;
+        let searches = get_search_cache(&mut guard)?;
+        searches.remove(&session);
+    }
+
+    {
+        let mut guard = get_open_sessions_guard()?;
+        let sessions = get_open_sessions(&mut guard)?;
+        if sessions.remove(&session) {
+            Ok(())
+        } else if session < NEXT_HANDLE.load(Ordering::SeqCst) {
+            Err(PK11Error(CKR_SESSION_CLOSED))
+        } else {
+            Err(PK11Error(CKR_SESSION_HANDLE_INVALID))
+        }
+    }
+}
+
+// Internal implementation of C_CloseAllSessions
+fn close_all_sessions() -> Result<(), PK11Error> {
+    {
+        let mut guard = get_search_cache_guard()?;
+        let searches = get_search_cache(&mut guard)?;
+        searches.clear();
+    }
+
+    {
+        let mut guard = get_open_sessions_guard()?;
+        let sessions = get_open_sessions(&mut guard)?;
+        sessions.clear();
+    }
+
+    Ok(())
+}
+
+// Internal implementation of C_FindObjectsInit
+fn find_objects_init(session: SessionHandle, query: &Query) -> Result<usize, PK11Error> {
+    validate_session(session)?;
+
+    let results = search(query);
+    let count = results.len();
+
+    let mut guard = get_search_cache_guard()?;
+    let searches = get_search_cache(&mut guard)?;
+    match searches.entry(session) {
+        Entry::Occupied(_) => Err(PK11Error(CKR_OPERATION_ACTIVE)),
+        Entry::Vacant(v) => {
+            v.insert(results);
+            Ok(count)
+        }
+    }
+}
+
+// Internal implementation of C_FindObjects
+fn find_objects(session: SessionHandle, out: &mut [CK_OBJECT_HANDLE]) -> Result<usize, PK11Error> {
+    validate_session(session)?;
+
+    let mut guard = get_search_cache_guard()?;
+    let searches = get_search_cache(&mut guard)?;
+    if let Some(objects) = searches.get_mut(&session) {
+        for (i, out_i) in out.iter_mut().enumerate() {
+            match objects.pop() {
+                Some(object) => *out_i = object.into(),
+                None => return Ok(i),
+            }
+        }
+        Ok(out.len())
+    } else {
+        Ok(0)
+    }
+}
+
+// Internal implementation of C_FindObjectsFinal
+fn find_objects_final(session: SessionHandle) -> Result<(), PK11Error> {
+    validate_session(session)?;
+
+    let mut guard = get_search_cache_guard()?;
+    let searches = get_search_cache(&mut guard)?;
+    searches.remove(&session);
+    Ok(())
+}
+
+extern "C" fn C_Initialize(_pInitArgs: CK_VOID_PTR) -> CK_RV {
+    match initialize() {
+        Ok(_) => CKR_OK,
+        Err(PK11Error(e)) => e,
+    }
+}
+
+extern "C" fn C_Finalize(pReserved: CK_VOID_PTR) -> CK_RV {
+    if !pReserved.is_null() {
+        return CKR_ARGUMENTS_BAD;
+    }
+    match finalize() {
+        Ok(_) => CKR_OK,
+        Err(PK11Error(e)) => e,
+    }
+}
+
+extern "C" fn C_GetInfo(pInfo: CK_INFO_PTR) -> CK_RV {
+    if pInfo.is_null() {
+        return CKR_ARGUMENTS_BAD;
+    }
+    unsafe {
+        *pInfo = CK_INFO {
+            cryptokiVersion: CRYPTOKI_VERSION,
+            manufacturerID: *MANUFACTURER_ID_BYTES,
+            flags: 0,
+            libraryDescription: *LIBRARY_DESCRIPTION_BYTES,
+            libraryVersion: BUILTINS_VERSION,
+        };
+    }
+    CKR_OK
+}
+
+extern "C" fn C_GetSlotList(
+    _tokenPresent: CK_BBOOL,
+    pSlotList: CK_SLOT_ID_PTR,
+    pulCount: CK_ULONG_PTR,
+) -> CK_RV {
+    if pulCount.is_null() {
+        return CKR_ARGUMENTS_BAD;
+    }
+    if !pSlotList.is_null() {
+        if unsafe { *pulCount } < SLOT_COUNT {
+            return CKR_BUFFER_TOO_SMALL;
+        }
+        unsafe {
+            *pSlotList = SLOT_ID_ROOTS;
+        }
+    }
+    unsafe {
+        *pulCount = SLOT_COUNT;
+    }
+    CKR_OK
+}
+
+extern "C" fn C_GetSlotInfo(slotID: CK_SLOT_ID, pInfo: CK_SLOT_INFO_PTR) -> CK_RV {
+    if (slotID != SLOT_ID_ROOTS) || pInfo.is_null() {
+        return CKR_ARGUMENTS_BAD;
+    }
+    unsafe {
+        *pInfo = CK_SLOT_INFO {
+            slotDescription: *SLOT_DESCRIPTION_ROOTS_BYTES,
+            manufacturerID: *MANUFACTURER_ID_BYTES,
+            flags: CKF_TOKEN_PRESENT,
+            hardwareVersion: HARDWARE_VERSION,
+            firmwareVersion: FIRMWARE_VERSION,
+        };
+    }
+    CKR_OK
+}
+
+extern "C" fn C_GetTokenInfo(slotID: CK_SLOT_ID, pInfo: CK_TOKEN_INFO_PTR) -> CK_RV {
+    if (slotID != SLOT_ID_ROOTS) || pInfo.is_null() {
+        return CKR_ARGUMENTS_BAD;
+    }
+    unsafe {
+        *pInfo = CK_TOKEN_INFO {
+            label: *TOKEN_LABEL_ROOTS_BYTES,
+            manufacturerID: *MANUFACTURER_ID_BYTES,
+            model: *TOKEN_MODEL_BYTES,
+            serialNumber: *TOKEN_SERIAL_NUMBER_BYTES,
+            flags: CKF_WRITE_PROTECTED,
+            ulMaxSessionCount: CK_UNAVAILABLE_INFORMATION,
+            ulSessionCount: 0,
+            ulMaxRwSessionCount: CK_UNAVAILABLE_INFORMATION,
+            ulRwSessionCount: 0,
+            ulMaxPinLen: CK_UNAVAILABLE_INFORMATION,
+            ulMinPinLen: CK_UNAVAILABLE_INFORMATION,
+            ulTotalPublicMemory: CK_UNAVAILABLE_INFORMATION,
+            ulFreePublicMemory: CK_UNAVAILABLE_INFORMATION,
+            ulTotalPrivateMemory: CK_UNAVAILABLE_INFORMATION,
+            ulFreePrivateMemory: CK_UNAVAILABLE_INFORMATION,
+            hardwareVersion: HARDWARE_VERSION,
+            firmwareVersion: FIRMWARE_VERSION,
+            utcTime: *TOKEN_UTC_TIME,
+        };
+    }
+    CKR_OK
+}
+
+extern "C" fn C_GetMechanismList(
+    slotID: CK_SLOT_ID,
+    _pMechanismList: CK_MECHANISM_TYPE_PTR,
+    pulCount: CK_ULONG_PTR,
+) -> CK_RV {
+    if slotID != SLOT_ID_ROOTS || pulCount.is_null() {
+        return CKR_ARGUMENTS_BAD;
+    }
+    unsafe {
+        *pulCount = 0;
+    }
+    CKR_OK
+}
+
+extern "C" fn C_GetMechanismInfo(
+    _slotID: CK_SLOT_ID,
+    _type: CK_MECHANISM_TYPE,
+    _pInfo: CK_MECHANISM_INFO_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_InitToken(
+    _slotID: CK_SLOT_ID,
+    _pPin: CK_UTF8CHAR_PTR,
+    _ulPinLen: CK_ULONG,
+    _pLabel: CK_UTF8CHAR_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_InitPIN(
+    _hSession: CK_SESSION_HANDLE,
+    _pPin: CK_UTF8CHAR_PTR,
+    _ulPinLen: CK_ULONG,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_SetPIN(
+    _hSession: CK_SESSION_HANDLE,
+    _pOldPin: CK_UTF8CHAR_PTR,
+    _ulOldLen: CK_ULONG,
+    _pNewPin: CK_UTF8CHAR_PTR,
+    _ulNewLen: CK_ULONG,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_OpenSession(
+    slotID: CK_SLOT_ID,
+    flags: CK_FLAGS,
+    _pApplication: CK_VOID_PTR,
+    _Notify: CK_NOTIFY,
+    phSession: CK_SESSION_HANDLE_PTR,
+) -> CK_RV {
+    if slotID != SLOT_ID_ROOTS || phSession.is_null() {
+        return CKR_ARGUMENTS_BAD;
+    }
+    // [pkcs11-base-v3.0, Section 5.6.1]
+    // For legacy reasons, the CKF_SERIAL_SESSION bit MUST always be set; if a call to
+    // C_OpenSession does not have this bit set, the call should return unsuccessfully with the
+    // error code CKR_SESSION_PARALLEL_NOT_SUPPORTED.
+    if flags & CKF_SERIAL_SESSION == 0 {
+        return CKR_SESSION_PARALLEL_NOT_SUPPORTED;
+    }
+    let session_id = match open_session() {
+        Ok(session_id) => session_id as CK_SESSION_HANDLE,
+        Err(PK11Error(e)) => return e,
+    };
+    unsafe { *phSession = session_id };
+    CKR_OK
+}
+
+extern "C" fn C_CloseSession(hSession: CK_SESSION_HANDLE) -> CK_RV {
+    let session: SessionHandle = match hSession.try_into() {
+        Ok(session) => session,
+        Err(_) => return CKR_SESSION_HANDLE_INVALID,
+    };
+    match close_session(session) {
+        Ok(_) => CKR_OK,
+        Err(PK11Error(e)) => e,
+    }
+}
+
+extern "C" fn C_CloseAllSessions(slotID: CK_SLOT_ID) -> CK_RV {
+    if slotID != SLOT_ID_ROOTS {
+        return CKR_ARGUMENTS_BAD;
+    }
+    match close_all_sessions() {
+        Ok(_) => CKR_OK,
+        Err(PK11Error(e)) => e,
+    }
+}
+
+extern "C" fn C_GetSessionInfo(_hSession: CK_SESSION_HANDLE, _pInfo: CK_SESSION_INFO_PTR) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_GetOperationState(
+    _hSession: CK_SESSION_HANDLE,
+    _pOperationState: CK_BYTE_PTR,
+    _pulOperationStateLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_SetOperationState(
+    _hSession: CK_SESSION_HANDLE,
+    _pOperationState: CK_BYTE_PTR,
+    _ulOperationStateLen: CK_ULONG,
+    _hEncryptionKey: CK_OBJECT_HANDLE,
+    _hAuthenticationKey: CK_OBJECT_HANDLE,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_Login(
+    _hSession: CK_SESSION_HANDLE,
+    _userType: CK_USER_TYPE,
+    _pPin: CK_UTF8CHAR_PTR,
+    _ulPinLen: CK_ULONG,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_Logout(_hSession: CK_SESSION_HANDLE) -> CK_RV {
+    CKR_OK
+}
+
+extern "C" fn C_CreateObject(
+    _hSession: CK_SESSION_HANDLE,
+    _pTemplate: CK_ATTRIBUTE_PTR,
+    _ulCount: CK_ULONG,
+    _phObject: CK_OBJECT_HANDLE_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_CopyObject(
+    _hSession: CK_SESSION_HANDLE,
+    _hObject: CK_OBJECT_HANDLE,
+    _pTemplate: CK_ATTRIBUTE_PTR,
+    _ulCount: CK_ULONG,
+    _phNewObject: CK_OBJECT_HANDLE_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_DestroyObject(_hSession: CK_SESSION_HANDLE, _hObject: CK_OBJECT_HANDLE) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_GetObjectSize(
+    _hSession: CK_SESSION_HANDLE,
+    _hObject: CK_OBJECT_HANDLE,
+    _pulSize: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_GetAttributeValue(
+    _hSession: CK_SESSION_HANDLE,
+    hObject: CK_OBJECT_HANDLE,
+    pTemplate: CK_ATTRIBUTE_PTR,
+    ulCount: CK_ULONG,
+) -> CK_RV {
+    if pTemplate.is_null() {
+        return CKR_ARGUMENTS_BAD;
+    }
+
+    let count: usize = match ulCount.try_into() {
+        Ok(count) => count,
+        Err(_) => return CKR_ARGUMENTS_BAD,
+    };
+
+    // C_GetAttributeValue has a session handle parameter because PKCS#11 objects can have
+    // session-bound lifetimes and access controls. We don't have any session objects, and all of
+    // our token objects are public. So there's no good reason to validate the session handle.
+    //
+    //let session: SessionHandle = match hSession.try_into() {
+    //    Ok(session) => session,
+    //    Err(_) => return CKR_SESSION_HANDLE_INVALID,
+    //};
+    //
+    //if let Err(PK11Error(e)) = validate_session(session) {
+    //    return e;
+    //}
+
+    let handle: ObjectHandle = match hObject.try_into() {
+        Ok(handle) => handle,
+        Err(_) => return CKR_OBJECT_HANDLE_INVALID,
+    };
+
+    let attrs: &mut [CK_ATTRIBUTE] = unsafe { slice::from_raw_parts_mut(pTemplate, count) };
+
+    let mut rv = CKR_OK;
+
+    // Handle requests with null pValue fields
+    for attr in attrs.iter_mut().filter(|x| x.pValue.is_null()) {
+        attr.ulValueLen = match get_attribute(attr.type_, &handle) {
+            None => {
+                // [pkcs11-base-v3.0, Section 5.7.5]
+                // 2. [...] if the specified value for the object is invalid (the object does not possess
+                //    such an attribute), then the ulValueLen field in that triple is modified to hold the
+                //    value CK_UNAVAILABLE_INFORMATION.
+                rv = CKR_ATTRIBUTE_TYPE_INVALID;
+                CK_UNAVAILABLE_INFORMATION
+            }
+            Some(attr) => {
+                // [pkcs11-base-v3.0, Section 5.7.5]
+                // 3. [...] if the pValue field has the value NULL_PTR, then the ulValueLen field is modified
+                //    to hold the exact length of the specified attribute for the object.
+                attr.len() as CK_ULONG
+            }
+        }
+    }
+
+    // Handle requests with non-null pValue fields
+    for attr in attrs.iter_mut().filter(|x| !x.pValue.is_null()) {
+        let dst_len: usize = match attr.ulValueLen.try_into() {
+            Ok(dst_len) => dst_len,
+            Err(_) => return CKR_ARGUMENTS_BAD,
+        };
+        attr.ulValueLen = match get_attribute(attr.type_, &handle) {
+            None => {
+                // [pkcs11-base-v3.0, Section 5.7.5]
+                // 2. [...] if the specified value for the object is invalid (the object does not possess
+                //    such an attribute), then the ulValueLen field in that triple is modified to hold the
+                //    value CK_UNAVAILABLE_INFORMATION.
+                rv = CKR_ATTRIBUTE_TYPE_INVALID;
+                CK_UNAVAILABLE_INFORMATION
+            }
+            Some(src) if dst_len >= src.len() => {
+                // [pkcs11-base-v3.0, Section 5.7.5]
+                // 4. [...] if the length specified in ulValueLen is large enough to hold the value
+                //    of the specified attribute for the object, then that attribute is copied into
+                //    the buffer located at pValue, and the ulValueLen field is modified to hold
+                //    the exact length of the attribute.
+                let dst: &mut [u8] =
+                    unsafe { slice::from_raw_parts_mut(attr.pValue as *mut u8, dst_len) };
+                dst[..src.len()].copy_from_slice(src);
+                src.len() as CK_ULONG
+            }
+            _ => {
+                // [pkcs11-base-v3.0, Section 5.7.5]
+                // 5. Otherwise, the ulValueLen field is modified to hold the value
+                //    CK_UNAVAILABLE_INFORMATION.
+                rv = CKR_BUFFER_TOO_SMALL;
+                CK_UNAVAILABLE_INFORMATION
+            }
+        };
+    }
+
+    // [pkcs11-base-v3.0, Section 5.7.5]
+    // If case 2 applies to any of the requested attributes, then the call should return the value
+    // CKR_ATTRIBUTE_TYPE_INVALID.  If case 5 applies to any of the requested attributes, then the
+    // call should return the value CKR_BUFFER_TOO_SMALL.  As usual, if more than one of these
+    // error codes is applicable, Cryptoki may return any of them.  Only if none of them applies to
+    // any of the requested attributes will CKR_OK be returned.
+    rv
+}
+
+extern "C" fn C_SetAttributeValue(
+    _hSession: CK_SESSION_HANDLE,
+    _hObject: CK_OBJECT_HANDLE,
+    _pTemplate: CK_ATTRIBUTE_PTR,
+    _ulCount: CK_ULONG,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_FindObjectsInit(
+    hSession: CK_SESSION_HANDLE,
+    pTemplate: CK_ATTRIBUTE_PTR,
+    ulCount: CK_ULONG,
+) -> CK_RV {
+    if pTemplate.is_null() {
+        return CKR_ARGUMENTS_BAD;
+    }
+    let count: usize = match ulCount.try_into() {
+        Ok(count) => count,
+        Err(_) => return CKR_ARGUMENTS_BAD,
+    };
+    let session: SessionHandle = match hSession.try_into() {
+        Ok(session) => session,
+        Err(_) => return CKR_SESSION_HANDLE_INVALID,
+    };
+
+    let raw_attrs: &[CK_ATTRIBUTE] = unsafe { slice::from_raw_parts_mut(pTemplate, count) };
+
+    let mut query: Vec<(CK_ATTRIBUTE_TYPE, &[u8])> = Vec::with_capacity(raw_attrs.len());
+    for attr in raw_attrs {
+        match usize::try_from(attr.ulValueLen) {
+            Ok(len) => query.push((attr.type_, unsafe {
+                slice::from_raw_parts_mut(attr.pValue as *mut u8, len)
+            })),
+            Err(_) => return CKR_ARGUMENTS_BAD,
+        }
+    }
+
+    match find_objects_init(session, &query) {
+        Ok(_) => CKR_OK,
+        Err(PK11Error(e)) => e,
+    }
+}
+
+extern "C" fn C_FindObjects(
+    hSession: CK_SESSION_HANDLE,
+    phObject: CK_OBJECT_HANDLE_PTR,
+    ulMaxObjectCount: CK_ULONG,
+    pulObjectCount: CK_ULONG_PTR,
+) -> CK_RV {
+    if phObject.is_null() || pulObjectCount.is_null() {
+        return CKR_ARGUMENTS_BAD;
+    }
+    let max_object_count: usize = match ulMaxObjectCount.try_into() {
+        Ok(max_object_count) => max_object_count,
+        Err(_) => return CKR_ARGUMENTS_BAD,
+    };
+    let session: SessionHandle = match hSession.try_into() {
+        Ok(session) => session,
+        Err(_) => return CKR_SESSION_HANDLE_INVALID,
+    };
+    let out: &mut [CK_OBJECT_HANDLE] =
+        unsafe { slice::from_raw_parts_mut(phObject, max_object_count) };
+    match find_objects(session, out) {
+        Ok(num_found) => {
+            unsafe { *pulObjectCount = num_found as CK_ULONG };
+            CKR_OK
+        }
+        Err(PK11Error(e)) => e,
+    }
+}
+
+extern "C" fn C_FindObjectsFinal(hSession: CK_SESSION_HANDLE) -> CK_RV {
+    let session: SessionHandle = match hSession.try_into() {
+        Ok(session) => session,
+        Err(_) => return CKR_SESSION_HANDLE_INVALID,
+    };
+    match find_objects_final(session) {
+        Ok(()) => CKR_OK,
+        Err(PK11Error(e)) => e,
+    }
+}
+
+extern "C" fn C_EncryptInit(
+    _hSession: CK_SESSION_HANDLE,
+    _pMechanism: CK_MECHANISM_PTR,
+    _hKey: CK_OBJECT_HANDLE,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_Encrypt(
+    _hSession: CK_SESSION_HANDLE,
+    _pData: CK_BYTE_PTR,
+    _ulDataLen: CK_ULONG,
+    _pEncryptedData: CK_BYTE_PTR,
+    _pulEncryptedDataLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_EncryptUpdate(
+    _hSession: CK_SESSION_HANDLE,
+    _pPart: CK_BYTE_PTR,
+    _ulPartLen: CK_ULONG,
+    _pEncryptedPart: CK_BYTE_PTR,
+    _pulEncryptedPartLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_EncryptFinal(
+    _hSession: CK_SESSION_HANDLE,
+    _pLastEncryptedPart: CK_BYTE_PTR,
+    _pulLastEncryptedPartLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_DecryptInit(
+    _hSession: CK_SESSION_HANDLE,
+    _pMechanism: CK_MECHANISM_PTR,
+    _hKey: CK_OBJECT_HANDLE,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_Decrypt(
+    _hSession: CK_SESSION_HANDLE,
+    _pEncryptedData: CK_BYTE_PTR,
+    _ulEncryptedDataLen: CK_ULONG,
+    _pData: CK_BYTE_PTR,
+    _pulDataLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_DecryptUpdate(
+    _hSession: CK_SESSION_HANDLE,
+    _pEncryptedPart: CK_BYTE_PTR,
+    _ulEncryptedPartLen: CK_ULONG,
+    _pPart: CK_BYTE_PTR,
+    _pulPartLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_DecryptFinal(
+    _hSession: CK_SESSION_HANDLE,
+    _pLastPart: CK_BYTE_PTR,
+    _pulLastPartLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_DigestInit(_hSession: CK_SESSION_HANDLE, _pMechanism: CK_MECHANISM_PTR) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_Digest(
+    _hSession: CK_SESSION_HANDLE,
+    _pData: CK_BYTE_PTR,
+    _ulDataLen: CK_ULONG,
+    _pDigest: CK_BYTE_PTR,
+    _pulDigestLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_DigestUpdate(
+    _hSession: CK_SESSION_HANDLE,
+    _pPart: CK_BYTE_PTR,
+    _ulPartLen: CK_ULONG,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_DigestKey(_hSession: CK_SESSION_HANDLE, _hKey: CK_OBJECT_HANDLE) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_DigestFinal(
+    _hSession: CK_SESSION_HANDLE,
+    _pDigest: CK_BYTE_PTR,
+    _pulDigestLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_SignInit(
+    _hSession: CK_SESSION_HANDLE,
+    _pMechanism: CK_MECHANISM_PTR,
+    _hKey: CK_OBJECT_HANDLE,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_Sign(
+    _hSession: CK_SESSION_HANDLE,
+    _pData: CK_BYTE_PTR,
+    _ulDataLen: CK_ULONG,
+    _pSignature: CK_BYTE_PTR,
+    _pulSignatureLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_SignUpdate(
+    _hSession: CK_SESSION_HANDLE,
+    _pPart: CK_BYTE_PTR,
+    _ulPartLen: CK_ULONG,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_SignFinal(
+    _hSession: CK_SESSION_HANDLE,
+    _pSignature: CK_BYTE_PTR,
+    _pulSignatureLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_SignRecoverInit(
+    _hSession: CK_SESSION_HANDLE,
+    _pMechanism: CK_MECHANISM_PTR,
+    _hKey: CK_OBJECT_HANDLE,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_SignRecover(
+    _hSession: CK_SESSION_HANDLE,
+    _pData: CK_BYTE_PTR,
+    _ulDataLen: CK_ULONG,
+    _pSignature: CK_BYTE_PTR,
+    _pulSignatureLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_VerifyInit(
+    _hSession: CK_SESSION_HANDLE,
+    _pMechanism: CK_MECHANISM_PTR,
+    _hKey: CK_OBJECT_HANDLE,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_Verify(
+    _hSession: CK_SESSION_HANDLE,
+    _pData: CK_BYTE_PTR,
+    _ulDataLen: CK_ULONG,
+    _pSignature: CK_BYTE_PTR,
+    _ulSignatureLen: CK_ULONG,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_VerifyUpdate(
+    _hSession: CK_SESSION_HANDLE,
+    _pPart: CK_BYTE_PTR,
+    _ulPartLen: CK_ULONG,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_VerifyFinal(
+    _hSession: CK_SESSION_HANDLE,
+    _pSignature: CK_BYTE_PTR,
+    _ulSignatureLen: CK_ULONG,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_VerifyRecoverInit(
+    _hSession: CK_SESSION_HANDLE,
+    _pMechanism: CK_MECHANISM_PTR,
+    _hKey: CK_OBJECT_HANDLE,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_VerifyRecover(
+    _hSession: CK_SESSION_HANDLE,
+    _pSignature: CK_BYTE_PTR,
+    _ulSignatureLen: CK_ULONG,
+    _pData: CK_BYTE_PTR,
+    _pulDataLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_DigestEncryptUpdate(
+    _hSession: CK_SESSION_HANDLE,
+    _pPart: CK_BYTE_PTR,
+    _ulPartLen: CK_ULONG,
+    _pEncryptedPart: CK_BYTE_PTR,
+    _pulEncryptedPartLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_DecryptDigestUpdate(
+    _hSession: CK_SESSION_HANDLE,
+    _pEncryptedPart: CK_BYTE_PTR,
+    _ulEncryptedPartLen: CK_ULONG,
+    _pPart: CK_BYTE_PTR,
+    _pulPartLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_SignEncryptUpdate(
+    _hSession: CK_SESSION_HANDLE,
+    _pPart: CK_BYTE_PTR,
+    _ulPartLen: CK_ULONG,
+    _pEncryptedPart: CK_BYTE_PTR,
+    _pulEncryptedPartLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_DecryptVerifyUpdate(
+    _hSession: CK_SESSION_HANDLE,
+    _pEncryptedPart: CK_BYTE_PTR,
+    _ulEncryptedPartLen: CK_ULONG,
+    _pPart: CK_BYTE_PTR,
+    _pulPartLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_GenerateKey(
+    _hSession: CK_SESSION_HANDLE,
+    _pMechanism: CK_MECHANISM_PTR,
+    _pTemplate: CK_ATTRIBUTE_PTR,
+    _ulCount: CK_ULONG,
+    _phKey: CK_OBJECT_HANDLE_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_GenerateKeyPair(
+    _hSession: CK_SESSION_HANDLE,
+    _pMechanism: CK_MECHANISM_PTR,
+    _pPublicKeyTemplate: CK_ATTRIBUTE_PTR,
+    _ulPublicKeyAttributeCount: CK_ULONG,
+    _pPrivateKeyTemplate: CK_ATTRIBUTE_PTR,
+    _ulPrivateKeyAttributeCount: CK_ULONG,
+    _phPublicKey: CK_OBJECT_HANDLE_PTR,
+    _phPrivateKey: CK_OBJECT_HANDLE_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_WrapKey(
+    _hSession: CK_SESSION_HANDLE,
+    _pMechanism: CK_MECHANISM_PTR,
+    _hWrappingKey: CK_OBJECT_HANDLE,
+    _hKey: CK_OBJECT_HANDLE,
+    _pWrappedKey: CK_BYTE_PTR,
+    _pulWrappedKeyLen: CK_ULONG_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_UnwrapKey(
+    _hSession: CK_SESSION_HANDLE,
+    _pMechanism: CK_MECHANISM_PTR,
+    _hUnwrappingKey: CK_OBJECT_HANDLE,
+    _pWrappedKey: CK_BYTE_PTR,
+    _ulWrappedKeyLen: CK_ULONG,
+    _pTemplate: CK_ATTRIBUTE_PTR,
+    _ulAttributeCount: CK_ULONG,
+    _phKey: CK_OBJECT_HANDLE_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_DeriveKey(
+    _hSession: CK_SESSION_HANDLE,
+    _pMechanism: CK_MECHANISM_PTR,
+    _hBaseKey: CK_OBJECT_HANDLE,
+    _pTemplate: CK_ATTRIBUTE_PTR,
+    _ulAttributeCount: CK_ULONG,
+    _phKey: CK_OBJECT_HANDLE_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_SeedRandom(
+    _hSession: CK_SESSION_HANDLE,
+    _pSeed: CK_BYTE_PTR,
+    _ulSeedLen: CK_ULONG,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_GenerateRandom(
+    _hSession: CK_SESSION_HANDLE,
+    _RandomData: CK_BYTE_PTR,
+    _ulRandomLen: CK_ULONG,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_GetFunctionStatus(_hSession: CK_SESSION_HANDLE) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_CancelFunction(_hSession: CK_SESSION_HANDLE) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+extern "C" fn C_WaitForSlotEvent(
+    _flags: CK_FLAGS,
+    _pSlot: CK_SLOT_ID_PTR,
+    _pRserved: CK_VOID_PTR,
+) -> CK_RV {
+    CKR_FUNCTION_NOT_SUPPORTED
+}
+
+pub static mut FUNCTION_LIST: CK_FUNCTION_LIST = CK_FUNCTION_LIST {
+    version: CRYPTOKI_VERSION,
+    C_Initialize: Some(C_Initialize),
+    C_Finalize: Some(C_Finalize),
+    C_GetInfo: Some(C_GetInfo),
+    C_GetFunctionList: None,
+    C_GetSlotList: Some(C_GetSlotList),
+    C_GetSlotInfo: Some(C_GetSlotInfo),
+    C_GetTokenInfo: Some(C_GetTokenInfo),
+    C_GetMechanismList: Some(C_GetMechanismList),
+    C_GetMechanismInfo: Some(C_GetMechanismInfo),
+    C_InitToken: Some(C_InitToken),
+    C_InitPIN: Some(C_InitPIN),
+    C_SetPIN: Some(C_SetPIN),
+    C_OpenSession: Some(C_OpenSession),
+    C_CloseSession: Some(C_CloseSession),
+    C_CloseAllSessions: Some(C_CloseAllSessions),
+    C_GetSessionInfo: Some(C_GetSessionInfo),
+    C_GetOperationState: Some(C_GetOperationState),
+    C_SetOperationState: Some(C_SetOperationState),
+    C_Login: Some(C_Login),
+    C_Logout: Some(C_Logout),
+    C_CreateObject: Some(C_CreateObject),
+    C_CopyObject: Some(C_CopyObject),
+    C_DestroyObject: Some(C_DestroyObject),
+    C_GetObjectSize: Some(C_GetObjectSize),
+    C_GetAttributeValue: Some(C_GetAttributeValue),
+    C_SetAttributeValue: Some(C_SetAttributeValue),
+    C_FindObjectsInit: Some(C_FindObjectsInit),
+    C_FindObjects: Some(C_FindObjects),
+    C_FindObjectsFinal: Some(C_FindObjectsFinal),
+    C_EncryptInit: Some(C_EncryptInit),
+    C_Encrypt: Some(C_Encrypt),
+    C_EncryptUpdate: Some(C_EncryptUpdate),
+    C_EncryptFinal: Some(C_EncryptFinal),
+    C_DecryptInit: Some(C_DecryptInit),
+    C_Decrypt: Some(C_Decrypt),
+    C_DecryptUpdate: Some(C_DecryptUpdate),
+    C_DecryptFinal: Some(C_DecryptFinal),
+    C_DigestInit: Some(C_DigestInit),
+    C_Digest: Some(C_Digest),
+    C_DigestUpdate: Some(C_DigestUpdate),
+    C_DigestKey: Some(C_DigestKey),
+    C_DigestFinal: Some(C_DigestFinal),
+    C_SignInit: Some(C_SignInit),
+    C_Sign: Some(C_Sign),
+    C_SignUpdate: Some(C_SignUpdate),
+    C_SignFinal: Some(C_SignFinal),
+    C_SignRecoverInit: Some(C_SignRecoverInit),
+    C_SignRecover: Some(C_SignRecover),
+    C_VerifyInit: Some(C_VerifyInit),
+    C_Verify: Some(C_Verify),
+    C_VerifyUpdate: Some(C_VerifyUpdate),
+    C_VerifyFinal: Some(C_VerifyFinal),
+    C_VerifyRecoverInit: Some(C_VerifyRecoverInit),
+    C_VerifyRecover: Some(C_VerifyRecover),
+    C_DigestEncryptUpdate: Some(C_DigestEncryptUpdate),
+    C_DecryptDigestUpdate: Some(C_DecryptDigestUpdate),
+    C_SignEncryptUpdate: Some(C_SignEncryptUpdate),
+    C_DecryptVerifyUpdate: Some(C_DecryptVerifyUpdate),
+    C_GenerateKey: Some(C_GenerateKey),
+    C_GenerateKeyPair: Some(C_GenerateKeyPair),
+    C_WrapKey: Some(C_WrapKey),
+    C_UnwrapKey: Some(C_UnwrapKey),
+    C_DeriveKey: Some(C_DeriveKey),
+    C_SeedRandom: Some(C_SeedRandom),
+    C_GenerateRandom: Some(C_GenerateRandom),
+    C_GetFunctionStatus: Some(C_GetFunctionStatus),
+    C_CancelFunction: Some(C_CancelFunction),
+    C_WaitForSlotEvent: Some(C_WaitForSlotEvent),
+};
+
+#[no_mangle]
+pub unsafe fn BUILTINSC_GetFunctionList(ppFunctionList: CK_FUNCTION_LIST_PTR_PTR) -> CK_RV {
+    if ppFunctionList.is_null() {
+        return CKR_ARGUMENTS_BAD;
+    }
+    *ppFunctionList = &mut FUNCTION_LIST;
+    CKR_OK
+}
+
+#[cfg(test)]
+mod pkcs11_tests {
+    use crate::certdata::*;
+    use crate::internal::*;
+    use crate::pkcs11::*;
+
+    #[test]
+    fn test_main() {
+        // We need to run tests serially because of C_Initialize / C_Finalize calls.
+        test_simple();
+        test_c_get_function_list();
+        test_c_get_attribute();
+    }
+
+    fn test_simple() {
+        let query = &[(CKA_CLASS, CKO_CERTIFICATE_BYTES)];
+        initialize().expect("initialize should not fail.");
+        let hSession = open_session().expect("open_session should not fail.");
+        let count = find_objects_init(hSession, query).expect("find_objects_init should not fail.");
+        assert_eq!(count, BUILTINS.len());
+        let mut results: [CK_OBJECT_HANDLE; 10] = [0; 10];
+        let n_read =
+            find_objects(hSession, &mut results).expect("find_objects_init should not fail.");
+        assert_eq!(n_read, 10);
+        finalize().expect("finalize should not fail.");
+    }
+
+    fn test_c_get_function_list() {
+        let c_null = 0 as *mut std::ffi::c_void;
+        let mut pFunctionList: CK_FUNCTION_LIST_PTR = c_null as CK_FUNCTION_LIST_PTR;
+        let rv = unsafe { crate::pkcs11::BUILTINSC_GetFunctionList(&mut pFunctionList) };
+        assert_eq!(CKR_OK, rv);
+        if let Some(pC_Initialize) = unsafe { (*pFunctionList).C_Initialize } {
+            let rv = unsafe { pC_Initialize(c_null) };
+            assert_eq!(CKR_OK, rv);
+        } else {
+            assert!(false);
+        }
+
+        if let Some(pC_Finalize) = unsafe { (*pFunctionList).C_Finalize } {
+            let rv = unsafe { pC_Finalize(c_null) };
+            assert_eq!(CKR_OK, rv);
+        } else {
+            assert!(false);
+        }
+    }
+
+    fn test_c_get_attribute() {
+        let c_null = 0 as *mut std::ffi::c_void;
+        let template: &mut [CK_ATTRIBUTE] = &mut [CK_ATTRIBUTE {
+            type_: CKA_SUBJECT,
+            pValue: c_null,
+            ulValueLen: 0,
+        }];
+        let template_ptr = &mut template[0] as CK_ATTRIBUTE_PTR;
+        let object: CK_OBJECT_HANDLE = 2;
+        let mut session: CK_SESSION_HANDLE = 0;
+        assert_eq!(CKR_OK, C_Initialize(c_null));
+        assert_eq!(
+            CKR_OK,
+            C_OpenSession(
+                SLOT_ID_ROOTS,
+                CKF_SERIAL_SESSION,
+                c_null,
+                None,
+                &mut session as *mut CK_SESSION_HANDLE
+            )
+        );
+        assert_eq!(
+            CKR_OK,
+            C_GetAttributeValue(session, object, template_ptr, 1)
+        );
+        let len = template[0].ulValueLen as usize;
+        assert_eq!(len, BUILTINS[0].der_name.len());
+
+        let value: &mut [u8] = &mut vec![0; 1];
+        let value_ptr: *mut u8 = &mut value[0] as *mut u8;
+        template[0].pValue = value_ptr as *mut std::ffi::c_void;
+        template[0].ulValueLen = 1;
+        assert_eq!(
+            CKR_BUFFER_TOO_SMALL,
+            C_GetAttributeValue(session, object, template_ptr, 1)
+        );
+        assert_eq!(template[0].ulValueLen, CK_UNAVAILABLE_INFORMATION);
+
+        let value: &mut [u8] = &mut vec![0; len];
+        let value_ptr: *mut u8 = &mut value[0] as *mut u8;
+        template[0].pValue = value_ptr as *mut std::ffi::c_void;
+        template[0].ulValueLen = len as CK_ULONG;
+        assert_eq!(
+            CKR_OK,
+            C_GetAttributeValue(session, object, template_ptr, 1)
+        );
+        assert_eq!(value, BUILTINS[0].der_name);
+        assert_eq!(CKR_OK, C_Finalize(c_null));
+    }
+}
diff --git a/security/manager/ssl/builtins/src/version.rs b/security/manager/ssl/builtins/src/version.rs
new file mode 100644
index 0000000000..f4fc63711d
--- /dev/null
+++ b/security/manager/ssl/builtins/src/version.rs
@@ -0,0 +1,6 @@
+/* -*- Mode: rust; rust-indent-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+include!(concat!(env!("OUT_DIR"), "/version.rs"));